{"id":68,"date":"2024-03-14T06:58:40","date_gmt":"2024-03-14T13:58:40","guid":{"rendered":"https:\/\/www.willsenton.com\/?page_id=68"},"modified":"2024-11-05T03:19:39","modified_gmt":"2024-11-05T11:19:39","slug":"r300-plus-series","status":"publish","type":"page","link":"https:\/\/www.willsenton.com\/zh\/amplifiers\/r300-plus-series\/","title":{"rendered":"R300 Plus \u7cfb\u5217"},"content":{"rendered":"

[et_pb_section fb_built=”1″ admin_label=”Header” _builder_version=”4.16″ global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.16″ max_width=”1280px” custom_padding=”27px|0px|0|0px|false|false” use_custom_width=”on” custom_width_px=”1280px” locked=”off” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.24.2″ text_font=”||||||||” header_font=”Arial|300|||||||” header_font_size=”70px” header_line_height=”1.3em” header_4_font=”Arial|500||on|||||” header_4_text_color=”#ef6f49″ header_4_font_size=”11px” header_4_letter_spacing=”3px” custom_margin=”||10px||false|false” header_font_size_tablet=”50px” header_font_size_phone=”40px” header_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}”]<\/p>\n

Amplifiers<\/h4>\n

R300 Plus Series<\/h1>\n

[\/et_pb_text][et_pb_text _builder_version=”4.24.2″ text_font=”||||||||” header_font=”||||||||” header_4_font=”Arial|300||on|||||” header_4_text_color=”rgba(239,111,73,0.6)” header_4_font_size=”21px” header_4_letter_spacing=”3px” max_width=”700px” custom_margin=”||||false|false” custom_padding=”||||false|false” locked=”off” global_colors_info=”{}”]<\/p>\n

Integrated Vacuum Tube Power Amplifier<\/h4>\n

[\/et_pb_text][et_pb_text _builder_version=”4.24.2″ text_font=”||||||||” text_font_size=”16px” text_line_height=”2.2em” global_colors_info=”{}”]<\/p>\n

This R300 Plus series uses two 300B vacuum tubes for Class A single-ended power amplification, accompanied by one TUNG-SOL 6SL7 and two 6SN7 vacuum tubes for signal amplification and driving. It employs two 5AR4 vacuum tubes for full-wave rectification, achieving an output power 8W per channel.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/www.willsenton.com\/wp-content\/uploads\/2024\/03\/willsenton-r300-plus-silver-6-1024×683.webp” title_text=”willsenton-r300-plus-silver-6″ align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” _builder_version=”4.24.2″ custom_padding=”10px||||false|false” border_radii=”on|3px|3px|3px|3px” box_shadow_style=”preset2″ box_shadow_color=”rgba(0,0,0,0.31)” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Details” _builder_version=”4.16″ global_colors_info=”{}”][et_pb_row column_structure=”1_3,1_3,1_3″ disabled_on=”on|on|on” _builder_version=”4.24.2″ custom_margin=”||10px||false|false” custom_padding=”||0px||false|false” disabled=”on” global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.24.2″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.24.2″ text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_font=”||||||||” header_3_font=”Arial|600||on|||||” header_3_font_size=”20px” header_3_letter_spacing=”1px” header_3_line_height=”1.8em” custom_margin=”30px||0px||false|false” locked=”off” global_colors_info=”{}” header_font_size__hover=”30px” header_2_font_size__hover=”26px” header_3_font_size__hover=”22px” header_4_font_size__hover=”18px” header_5_font_size__hover=”16px” header_6_font_size__hover=”14px” header_font_size__hover_enabled=”30px” header_2_font_size__hover_enabled=”26px” header_3_font_size__hover_enabled=”22px” header_4_font_size__hover_enabled=”18px” header_5_font_size__hover_enabled=”16px” header_6_font_size__hover_enabled=”14px” header_letter_spacing__hover=”0px” header_2_letter_spacing__hover=”0px” header_3_letter_spacing__hover=”0px” header_4_letter_spacing__hover=”0px” header_5_letter_spacing__hover=”0px” header_6_letter_spacing__hover=”0px” header_letter_spacing__hover_enabled=”0px” header_2_letter_spacing__hover_enabled=”0px” header_3_letter_spacing__hover_enabled=”0px” header_4_letter_spacing__hover_enabled=”0px” header_5_letter_spacing__hover_enabled=”0px” header_6_letter_spacing__hover_enabled=”0px” header_2_line_height__hover=”1em” header_3_line_height__hover=”1em” header_4_line_height__hover=”1em” header_5_line_height__hover=”1em” header_6_line_height__hover=”1em” header_2_line_height__hover_enabled=”1em” header_3_line_height__hover_enabled=”1em” header_4_line_height__hover_enabled=”1em” header_5_line_height__hover_enabled=”1em” header_6_line_height__hover_enabled=”1em” header_text_shadow_style__hover=”none” header_2_text_shadow_style__hover=”none” header_3_text_shadow_style__hover=”none” header_4_text_shadow_style__hover=”none” header_5_text_shadow_style__hover=”none” header_6_text_shadow_style__hover=”none” header_text_shadow_style__hover_enabled=”none” header_2_text_shadow_style__hover_enabled=”none” header_3_text_shadow_style__hover_enabled=”none” header_4_text_shadow_style__hover_enabled=”none” header_5_text_shadow_style__hover_enabled=”none” header_6_text_shadow_style__hover_enabled=”none” header_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_2_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_3_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_4_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_5_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_6_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_2_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_3_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_4_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_5_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_6_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)”]<\/p>\n

R8 – EL34<\/h3>\n

This design uses four EL34 vacuum tubes for AB1 class push-pull power amplification. Additionally, it features two 6SL7 tubes and two 6SN7 tubes for signal amplification and driving. The pre-stage voltage uses a single 6SN7 tube for a filtered power supply, achieving an output power 40W per channel.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.24.2″ text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_font=”||||||||” header_3_font=”Arial|600||on|||||” header_3_font_size=”20px” header_3_letter_spacing=”1px” header_3_line_height=”1.8em” custom_margin=”30px||0px||false|false” locked=”off” global_colors_info=”{}” header_font_size__hover=”30px” header_2_font_size__hover=”26px” header_3_font_size__hover=”22px” header_4_font_size__hover=”18px” header_5_font_size__hover=”16px” header_6_font_size__hover=”14px” header_font_size__hover_enabled=”30px” header_2_font_size__hover_enabled=”26px” header_3_font_size__hover_enabled=”22px” header_4_font_size__hover_enabled=”18px” header_5_font_size__hover_enabled=”16px” header_6_font_size__hover_enabled=”14px” header_letter_spacing__hover=”0px” header_2_letter_spacing__hover=”0px” header_3_letter_spacing__hover=”0px” header_4_letter_spacing__hover=”0px” header_5_letter_spacing__hover=”0px” header_6_letter_spacing__hover=”0px” header_letter_spacing__hover_enabled=”0px” header_2_letter_spacing__hover_enabled=”0px” header_3_letter_spacing__hover_enabled=”0px” header_4_letter_spacing__hover_enabled=”0px” header_5_letter_spacing__hover_enabled=”0px” header_6_letter_spacing__hover_enabled=”0px” header_2_line_height__hover=”1em” header_3_line_height__hover=”1em” header_4_line_height__hover=”1em” header_5_line_height__hover=”1em” header_6_line_height__hover=”1em” header_2_line_height__hover_enabled=”1em” header_3_line_height__hover_enabled=”1em” header_4_line_height__hover_enabled=”1em” header_5_line_height__hover_enabled=”1em” header_6_line_height__hover_enabled=”1em” header_text_shadow_style__hover=”none” header_2_text_shadow_style__hover=”none” header_3_text_shadow_style__hover=”none” header_4_text_shadow_style__hover=”none” header_5_text_shadow_style__hover=”none” header_6_text_shadow_style__hover=”none” header_text_shadow_style__hover_enabled=”none” header_2_text_shadow_style__hover_enabled=”none” header_3_text_shadow_style__hover_enabled=”none” header_4_text_shadow_style__hover_enabled=”none” header_5_text_shadow_style__hover_enabled=”none” header_6_text_shadow_style__hover_enabled=”none” header_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_2_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_3_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_4_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_5_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_6_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_2_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_3_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_4_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_5_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_6_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)”]<\/p>\n

R8 – KT88<\/h3>\n

This design uses four KT88 vacuum tubes for AB1 class push-pull power amplification. Additionally, it features two 6SL7 tubes and two 6SN7 tubes for signal amplification and driving. The pre-stage voltage uses a single 6SN7 tube for a filtered power supply, achieving an output power 45W per channel.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.24.2″ text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_font=”||||||||” header_3_font=”Arial|600||on|||||” header_3_font_size=”20px” header_3_letter_spacing=”1px” header_3_line_height=”1.8em” custom_margin=”30px||0px||false|false” locked=”off” global_colors_info=”{}” header_font_size__hover=”30px” header_2_font_size__hover=”26px” header_3_font_size__hover=”22px” header_4_font_size__hover=”18px” header_5_font_size__hover=”16px” header_6_font_size__hover=”14px” header_font_size__hover_enabled=”30px” header_2_font_size__hover_enabled=”26px” header_3_font_size__hover_enabled=”22px” header_4_font_size__hover_enabled=”18px” header_5_font_size__hover_enabled=”16px” header_6_font_size__hover_enabled=”14px” header_letter_spacing__hover=”0px” header_2_letter_spacing__hover=”0px” header_3_letter_spacing__hover=”0px” header_4_letter_spacing__hover=”0px” header_5_letter_spacing__hover=”0px” header_6_letter_spacing__hover=”0px” header_letter_spacing__hover_enabled=”0px” header_2_letter_spacing__hover_enabled=”0px” header_3_letter_spacing__hover_enabled=”0px” header_4_letter_spacing__hover_enabled=”0px” header_5_letter_spacing__hover_enabled=”0px” header_6_letter_spacing__hover_enabled=”0px” header_2_line_height__hover=”1em” header_3_line_height__hover=”1em” header_4_line_height__hover=”1em” header_5_line_height__hover=”1em” header_6_line_height__hover=”1em” header_2_line_height__hover_enabled=”1em” header_3_line_height__hover_enabled=”1em” header_4_line_height__hover_enabled=”1em” header_5_line_height__hover_enabled=”1em” header_6_line_height__hover_enabled=”1em” header_text_shadow_style__hover=”none” header_2_text_shadow_style__hover=”none” header_3_text_shadow_style__hover=”none” header_4_text_shadow_style__hover=”none” header_5_text_shadow_style__hover=”none” header_6_text_shadow_style__hover=”none” header_text_shadow_style__hover_enabled=”none” header_2_text_shadow_style__hover_enabled=”none” header_3_text_shadow_style__hover_enabled=”none” header_4_text_shadow_style__hover_enabled=”none” header_5_text_shadow_style__hover_enabled=”none” header_6_text_shadow_style__hover_enabled=”none” header_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_2_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_3_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_4_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_5_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_6_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_2_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_3_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_4_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_5_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_6_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)”]<\/p>\n

R8 – EH6550<\/h3>\n

This design uses four EH6550 vacuum tubes for AB1 class push-pull power amplification. Additionally, it features two 6SL7 tubes and two 6SN7 tubes for signal amplification and driving. The pre-stage voltage uses a single 6SN7 tube for a filtered power supply, achieving an output power 45W per channel.<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.24.2″ custom_margin=”0px||||false|false” custom_padding=”0px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.24.2″ text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_font=”||||||||” header_3_font=”Arial|600||on|||||” header_3_font_size=”20px” header_3_letter_spacing=”1px” header_3_line_height=”1.8em” custom_margin=”30px||60px||false|false” locked=”off” global_colors_info=”{}” header_font_size__hover=”30px” header_2_font_size__hover=”26px” header_3_font_size__hover=”22px” header_4_font_size__hover=”18px” header_5_font_size__hover=”16px” header_6_font_size__hover=”14px” header_font_size__hover_enabled=”30px” header_2_font_size__hover_enabled=”26px” header_3_font_size__hover_enabled=”22px” header_4_font_size__hover_enabled=”18px” header_5_font_size__hover_enabled=”16px” header_6_font_size__hover_enabled=”14px” header_letter_spacing__hover=”0px” header_2_letter_spacing__hover=”0px” header_3_letter_spacing__hover=”0px” header_4_letter_spacing__hover=”0px” header_5_letter_spacing__hover=”0px” header_6_letter_spacing__hover=”0px” header_letter_spacing__hover_enabled=”0px” header_2_letter_spacing__hover_enabled=”0px” header_3_letter_spacing__hover_enabled=”0px” header_4_letter_spacing__hover_enabled=”0px” header_5_letter_spacing__hover_enabled=”0px” header_6_letter_spacing__hover_enabled=”0px” header_2_line_height__hover=”1em” header_3_line_height__hover=”1em” header_4_line_height__hover=”1em” header_5_line_height__hover=”1em” header_6_line_height__hover=”1em” header_2_line_height__hover_enabled=”1em” header_3_line_height__hover_enabled=”1em” header_4_line_height__hover_enabled=”1em” header_5_line_height__hover_enabled=”1em” header_6_line_height__hover_enabled=”1em” header_text_shadow_style__hover=”none” header_2_text_shadow_style__hover=”none” header_3_text_shadow_style__hover=”none” header_4_text_shadow_style__hover=”none” header_5_text_shadow_style__hover=”none” header_6_text_shadow_style__hover=”none” header_text_shadow_style__hover_enabled=”none” header_2_text_shadow_style__hover_enabled=”none” header_3_text_shadow_style__hover_enabled=”none” header_4_text_shadow_style__hover_enabled=”none” header_5_text_shadow_style__hover_enabled=”none” header_6_text_shadow_style__hover_enabled=”none” header_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_2_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_3_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_4_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_5_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_6_text_shadow_color__hover=”rgba(0,0,0,0.4)” header_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_2_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_3_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_4_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_5_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)” header_6_text_shadow_color__hover_enabled=”rgba(0,0,0,0.4)”]<\/p>\n

This R300 Plus series uses two 300B vacuum tubes for Class A single-ended power amplification, accompanied by one TUNG-SOL 6SL7 and two 6SN7 tubes for signal amplification and driving. It employs two 5AR4 tubes for full-wave rectification, achieving an output power 8W per channel. Additionally, this series features handcrafted point-to-point wiring, a body and transformer cover finished with high-grade piano lacquer, a headphone output function, an external, independent BIAS ADJ current monitoring meter, a 30-second silent delay function, headphone output capability, ALPS motorized potentiometers, and pure post-stage input functionality, allowing for independent pre-stage signal input.<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ custom_padding_last_edited=”on|tablet” admin_label=”Gallery” _builder_version=”4.24.2″ use_background_color_gradient=”on” background_color_gradient_direction=”90deg” background_color_gradient_stops=”rgba(247,243,236,0) 12%|#f7f3ec 60%” background_color_gradient_start=”rgba(247,243,236,0)” background_color_gradient_start_position=”60%” background_color_gradient_end=”#f7f3ec” background_color_gradient_end_position=”60%” custom_padding=”100px|0px|100px|0px|true|false” custom_padding_tablet=”30px||30px||true” custom_padding_phone=”” locked=”off” global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.16″ width=”90%” max_width=”90%” module_alignment=”right” use_custom_width=”on” width_unit=”off” custom_width_percent=”90%” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/www.willsenton.com\/wp-content\/uploads\/2024\/03\/willsenton-r300-plus-silver-800-400-1.webp” title_text=”willsenton-r300-plus-silver-800-400-1″ align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” _builder_version=”4.24.2″ custom_margin=”||30px||false|false” custom_padding=”||0px||false|false” animation_style=”slide” animation_direction=”right” animation_intensity_slide=”2%” border_width_all=”8px” border_color_all=”#ffffff” locked=”off” global_colors_info=”{}” show_bottom_space__hover=”on” show_bottom_space__hover_enabled=”on”][\/et_pb_image][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial|600|||||||” text_font_size=”17px” text_letter_spacing=”1px” custom_margin=”0px||||false|false” custom_padding=”0px||||false|false” animation_style=”slide” animation_direction=”right” animation_intensity_slide=”2%” global_colors_info=”{}”]<\/p>\n

The body is made from aviation-grade aluminum alloy with piano paint.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/www.willsenton.com\/wp-content\/uploads\/2024\/03\/willsenton-r300-plus-black-800-400-1.webp” title_text=”willsenton-r300-plus-black-800-400-1″ align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” _builder_version=”4.24.2″ custom_margin=”||30px||false|false” custom_padding=”||0px||false|false” animation_style=”slide” animation_direction=”right” animation_intensity_slide=”2%” border_width_all=”8px” border_color_all=”#ffffff” locked=”off” global_colors_info=”{}” show_bottom_space__hover=”on” show_bottom_space__hover_enabled=”on”][\/et_pb_image][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial|600|||||||” text_font_size=”17px” text_letter_spacing=”1px” custom_margin=”0px||||false|false” custom_padding=”0px||||false|false” animation_style=”slide” animation_direction=”right” animation_intensity_slide=”2%” global_colors_info=”{}”]<\/p>\n

The external independent BIAS ADJ current display meter and current adjustment points.<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.16″ width=”90%” max_width=”90%” module_alignment=”right” use_custom_width=”on” width_unit=”off” custom_width_percent=”90%” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/www.willsenton.com\/wp-content\/uploads\/2024\/03\/willsenton-r300-plus-black-800-400-2.webp” title_text=”willsenton-r300-plus-black-800-400-2″ align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” _builder_version=”4.24.2″ custom_margin=”||30px||false|false” custom_padding=”||0px||false|false” animation_style=”slide” animation_direction=”right” animation_intensity_slide=”2%” border_width_all=”8px” border_color_all=”#ffffff” locked=”off” global_colors_info=”{}” show_bottom_space__hover=”on” show_bottom_space__hover_enabled=”on”][\/et_pb_image][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial|600|||||||” text_font_size=”17px” text_letter_spacing=”1px” custom_margin=”0px||||false|false” custom_padding=”0px||||false|false” animation_style=”slide” animation_direction=”right” animation_intensity_slide=”2%” global_colors_info=”{}”]<\/p>\n

High-grade ALPS motorized potentiometers made in Japan.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_image src=”https:\/\/www.willsenton.com\/wp-content\/uploads\/2024\/03\/willsenton-r300-plus-silver-800-400-2.webp” title_text=”willsenton-r300-plus-silver-800-400-2″ align_tablet=”center” align_phone=”center” align_last_edited=”on|desktop” _builder_version=”4.24.2″ custom_margin=”||30px||false|false” custom_padding=”||0px||false|false” animation_style=”slide” animation_direction=”right” animation_intensity_slide=”2%” border_width_all=”8px” border_color_all=”#ffffff” locked=”off” global_colors_info=”{}” show_bottom_space__hover=”on” show_bottom_space__hover_enabled=”on”][\/et_pb_image][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial|600|||||||” text_font_size=”17px” text_letter_spacing=”1px” custom_margin=”0px||||false|false” custom_padding=”0px||||false|false” animation_style=”slide” animation_direction=”right” animation_intensity_slide=”2%” global_colors_info=”{}”]<\/p>\n

CNC-machined copper terminals plated with gold are aimed at further noise reduction and upgrades.<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.24.2″ _module_preset=”default” custom_padding=”70px||0px||false|false” global_colors_info=”{}”][et_pb_row _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.24.2″ text_font=”||||||||” header_font=”||||||||” header_2_font=”Arial|300|||||||” header_2_text_color=”#333333″ header_2_font_size=”42px” header_2_line_height=”1.5em” header_4_font=”Montserrat|500||on|||||” header_4_text_color=”#ef6f49″ header_4_font_size=”11px” header_4_letter_spacing=”3px” background_layout=”dark” max_width=”700px” header_2_font_size_tablet=”32px” header_2_font_size_phone=”24px” header_2_font_size_last_edited=”on|desktop” locked=”off” global_colors_info=”{}”]<\/p>\n

Details<\/h4>\n

Features of R300 Plus Series<\/h2>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_3_font=”Arial|300|||||||” header_3_text_align=”center” header_3_font_size=”23px” text_orientation=”center” custom_margin=”||70px||false|false” global_colors_info=”{}”]<\/p>\n

Aluminum<\/h3>\n

The body is made from aviation-grade aluminum alloy.<\/p>\n

[\/et_pb_text][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_3_font=”Arial|300|||||||” header_3_text_align=”center” header_3_font_size=”23px” text_orientation=”center” custom_margin=”||20px||false|false” global_colors_info=”{}”]<\/p>\n

Manual Soldering<\/h3>\n

We employ artisanal hand-soldering techniques to solder each component manually.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_3_font=”Arial|300|||||||” header_3_text_align=”center” header_3_font_size=”23px” text_orientation=”center” custom_margin=”||70px||false|false” global_colors_info=”{}”]<\/p>\n

30s Mute Delay<\/h3>\n

The high-voltage mute delay can effectively protect the vacuum tubes.<\/p>\n

[\/et_pb_text][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_3_font=”Arial|300|||||||” header_3_text_align=”center” header_3_font_size=”23px” text_orientation=”center” custom_margin=”||20px||false|false” global_colors_info=”{}”]<\/p>\n

ALPS<\/h3>\n

We use high-grade ALPS potentiometers that are made in Japan.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_3_font=”Arial|300|||||||” header_3_text_align=”center” header_3_font_size=”23px” text_orientation=”center” custom_margin=”||70px||false|false” global_colors_info=”{}”]<\/p>\n

BIAS ADJ<\/h3>\n

The high-end external, independent BIAS ADJ current display meter.<\/p>\n

[\/et_pb_text][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_3_font=”Arial|300|||||||” header_3_text_align=”center” header_3_font_size=”23px” text_orientation=”center” custom_margin=”||20px||false|false” global_colors_info=”{}”]<\/p>\n

Power Amp Mode<\/h3>\n

We have added a power amp function to this series, allowing you to use your preamp.<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.24.2″ _module_preset=”default” custom_padding=”60px||||false|false” global_colors_info=”{}”][et_pb_row _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.24.2″ text_font=”||||||||” header_font=”||||||||” header_2_font=”Arial|300|||||||” header_2_text_color=”#333333″ header_2_font_size=”42px” header_2_line_height=”1.5em” header_4_font=”Montserrat|500||on|||||” header_4_text_color=”#ef6f49″ header_4_font_size=”11px” header_4_letter_spacing=”3px” background_layout=”dark” max_width=”700px” header_2_font_size_tablet=”32px” header_2_font_size_phone=”24px” header_2_font_size_last_edited=”on|desktop” locked=”off” global_colors_info=”{}”]<\/p>\n

Details<\/h4>\n

Sound of R300 Plus Series<\/h2>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_3_font=”Arial|300|||||||” header_3_text_align=”center” header_3_font_size=”23px” text_orientation=”center” custom_margin=”||20px||false|false” global_colors_info=”{}”]<\/p>\n

Classical<\/h3>\n

This series has made every effort to restore classical music instruments, live performance ambiance, and vocal nuances.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_3_font=”Arial|300|||||||” header_3_text_align=”center” header_3_font_size=”23px” text_orientation=”center” custom_margin=”||20px||false|false” global_colors_info=”{}”]<\/p>\n

Pop \/ Contemporary<\/h3>\n

This series has made the greatest effort to achieve the mid-frequencies and high-frequency vocals needed for pop music.<\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.24.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.24.2″ _module_preset=”default” text_font=”Arial||||||||” text_font_size=”15px” text_line_height=”2.2em” header_3_font=”Arial|300|||||||” header_3_text_align=”center” header_3_font_size=”23px” text_orientation=”center” custom_margin=”||20px||false|false” global_colors_info=”{}”]<\/p>\n

Symphonic \/ Live<\/h3>\n

This series makes the utmost effort to reproduce the soundstage and more wider dynamic range of live music faithfully.<\/p>\n

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Details<\/h4>\n

Vacuum Tube of R300 Plus Series<\/h2>\n

[\/et_pb_text][et_pb_text _builder_version=”4.24.2″ text_font=”Arial||||||||” text_font_size=”17px” text_line_height=”2.2em” header_font=”||||||||” header_3_font=”Arial||||||||” header_3_letter_spacing=”1px” header_3_line_height=”2.5em” background_layout=”dark” custom_margin=”30px||50px||false” locked=”off” global_colors_info=”{}”]<\/p>\n

We use only high-quality vacuum tubes for our products!<\/h3>\n

This series utilizes two specially customized 5AR4 vacuum tubes for full-wave vacuum tube rectification in the high-voltage section; the pre-stage employs one TUNG-SOL 6SL7 vacuum tube for amplification and one Soviet 6SN7 vacuum tube as the driver; and the power amp uses two of our specially customized 300B vacuum tubes for Class A power amplification. Every component is meticulously hand-wired and soldered, offering effective isolation and shielding, and the body is finished with piano lacquer. This way, perfection is more fully achieved.<\/p>\n

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hover_transition_duration__hover_enabled=”300ms” hover_transition_delay__hover=”0ms” hover_transition_delay__hover_enabled=”0ms” hover_transition_speed_curve__hover=”ease” hover_transition_speed_curve__hover_enabled=”ease” background_color_gradient_stops__hover=”#2b87da 0%|#29c4a9 100%” sticky_enabled=”0″][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_divider color=”#ef6f49″ _builder_version=”4.16″ max_width=”70px” custom_margin=”||0px” locked=”off” global_colors_info=”{}”][\/et_pb_divider][et_pb_text _builder_version=”4.24.2″ text_font=”||||||||” header_font=”||||||||” header_2_font=”Arial|300|||||||” header_2_font_size=”42px” header_2_line_height=”1.5em” max_width=”700px” header_2_font_size_tablet=”32px” header_2_font_size_phone=”24px” header_2_font_size_last_edited=”on|phone” locked=”off” 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Specifications<\/h2>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ custom_padding=”42px|||” custom_padding_tablet=”0px||” custom_padding_phone=”0px||” custom_padding_last_edited=”on|tablet” global_colors_info=”{}” padding_tablet=”0px||” padding_last_edited=”on|tablet” custom_padding__hover=”|||” padding_phone=”0px||”][et_pb_button button_url=”#gallery” button_text=”Jump To Gallery” button_alignment=”right” _builder_version=”4.24.2″ custom_button=”on” button_text_size=”13px” button_text_color=”#1a2545″ button_bg_color=”rgba(26,37,69,0.08)” button_border_width=”0px” button_border_radius=”0px” button_letter_spacing=”2px” button_font=”Arial|600||on|||||” button_use_icon=”off” custom_padding=”12px|24px|12px|24px|true|true” locked=”off” global_colors_info=”{}” button_bg_color__hover=”rgba(26,37,69,0.16)” button_bg_color__hover_enabled=”on”][\/et_pb_button][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_code _builder_version=”4.24.2″ _module_preset=”default” overflow-x=”auto” global_colors_info=”{}”]<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n<\/p>\n
Titles<\/b><\/span><\/td>\n

<\/p>\n

Details<\/b><\/span><\/td>\n

<\/tr>\n

<\/p>\n

Output Power<\/b><\/td>\n

<\/p>\n

8W + 8W<\/td>\n

<\/tr>\n

<\/p>\n

Harmonic Distortion<\/b><\/td>\n

<\/p>\n

1% (1kHz)<\/td>\n

<\/tr>\n

<\/p>\n

Frequency Response<\/b><\/td>\n

<\/p>\n

15Hz ~ 45kHz (-3dB)<\/td>\n

<\/tr>\n

<\/p>\n

Input Sensitivity<\/b><\/td>\n

<\/p>\n

210mV (Integrated Mode)620mV (Power Amp Mode)<\/td>\n

<\/tr>\n

<\/p>\n

Input Impedance<\/b><\/td>\n

<\/p>\n

100K\u2126<\/td>\n

<\/tr>\n

<\/p>\n

Output Impedance<\/b><\/td>\n

<\/p>\n

4\u2126, 8\u2126, 16\u2126<\/td>\n

<\/tr>\n

<\/p>\n

Signal to Noise<\/b><\/td>\n

<\/p>\n

90dB<\/td>\n

<\/tr>\n

<\/p>\n

VACUUM TUBE<\/b><\/td>\n

<\/p>\n

300B*2, 5AR4*2, 6SN7*2, 6SL7*1<\/td>\n

<\/tr>\n

<\/p>\n

Power<\/b><\/td>\n

<\/p>\n

280W<\/td>\n

<\/tr>\n

<\/p>\n

Unit Weight<\/b><\/td>\n

<\/p>\n

50.71lbs (23KG)<\/td>\n

<\/tr>\n

<\/p>\n

Gross Weight<\/b><\/td>\n

<\/p>\n

59.53lbs (27KG)<\/td>\n

<\/tr>\n

<\/p>\n

Unit Dimensions<\/b><\/td>\n

<\/p>\n

15.95″W * 7.89″H * 13.98″D (405mm W * 200mm H * 355mm D)<\/td>\n

<\/tr>\n

<\/p>\n

Voltage Options<\/b><\/td>\n

<\/p>\n

Japan – 100VNorth America – 120VEurope\/Asia\/Australia\/New Zealand – 230V<\/td>\n

<\/tr>\n

<\/p>\n

Working Temperature<\/b><\/td>\n

<\/p>\n

32\u00b0F to 104\u00b0F (0\u00b0C to 40\u00b0C)<\/td>\n

<\/tr>\n

<\/p>\n

Working Humidity<\/b><\/td>\n

<\/p>\n

20% to 80%<\/td>\n

<\/tr>\n

<\/p>\n

Temperature<\/b><\/td>\n

<\/p>\n

-4\u00b0F to 158\u00b0F (-20\u00b0C to 80\u00b0C)<\/td>\n

<\/tr>\n

<\/p>\n

Humidity<\/b><\/td>\n

<\/p>\n

20% to 90%<\/td>\n

<\/tr>\n

<\/tbody>\n

<\/table>\n

[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.2″ _module_preset=”default” background_color=”#f2f2f2″ custom_padding=”||||false|false” global_colors_info=”{}” locked=”off”][et_pb_row _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.2″ text_font=”||||||||” header_font=”||||||||” header_2_font=”Arial|300|||||||” header_2_text_color=”#333333″ header_2_font_size=”42px” header_2_line_height=”1.5em” header_4_font=”Montserrat|500||on|||||” header_4_text_color=”#ef6f49″ header_4_font_size=”11px” header_4_letter_spacing=”3px” background_layout=”dark” max_width=”700px” header_2_font_size_tablet=”32px” header_2_font_size_phone=”24px” header_2_font_size_last_edited=”on|desktop” locked=”off” global_colors_info=”{}”]<\/p>\n

Video of Our Products<\/h2>\n

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src=”https:\/\/customer-rwiljh55kcb20gpo.cloudflarestream.com\/323c7de4d239307c285d4d9960242ec1\/iframe?poster=https%3A%2F%2Fcustomer-rwiljh55kcb20gpo.cloudflarestream.com%2F323c7de4d239307c285d4d9960242ec1%2Fthumbnails%2Fthumbnail.jpg%3Ftime%3D%26height%3D600″ loading=”lazy” style=”border: none; position: absolute; top: 0; left: 0; height: 100%; width: 100%;” allow=”accelerometer; gyroscope; autoplay; encrypted-media; picture-in-picture;” allowfullscreen=”true” ><\/iframe><\/div>\n

[\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Categories” _builder_version=”4.24.2″ custom_margin=”40px||10px||false|false” global_module=”1037″ saved_tabs=”all” locked=”off” global_colors_info=”{}”][et_pb_row _builder_version=”4.24.2″ custom_margin=”||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.24.2″ text_font=”||||||||” header_font=”||||||||” header_2_font=”Arial|300|||||||” header_2_font_size=”42px” header_2_line_height=”1.5em” header_4_font=”Arial|500||on|||||” header_4_text_color=”#ef6f49″ header_4_font_size=”11px” header_4_letter_spacing=”3px” max_width=”700px” header_2_font_size_tablet=”32px” header_2_font_size_phone=”24px” header_2_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}”]<\/p>\n

Photos of Our Products<\/h2>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ locked=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_gallery gallery_ids=”785,786,787,788,789,790,791,792,793,794,795,796,797,798,799,811,810,809,808,807,806,805,804,803,802,801,800,812″ gallery_orderby=”rand” posts_number=”8″ show_title_and_caption=”off” show_pagination=”off” hover_icon=”T||divi||400″ _builder_version=”4.24.2″ _module_preset=”default” title_font=”Arial||||||||” caption_font=”Arial||||||||” pagination_font=”Arial||||||||” custom_margin=”||||false|false” global_colors_info=”{}”][\/et_pb_gallery][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

Amplifiers R300 Plus SeriesIntegrated Vacuum Tube Power AmplifierThis R300 Plus series uses two 300B vacuum tubes for Class A single-ended power amplification, accompanied by one TUNG-SOL 6SL7 and two 6SN7 vacuum tubes for signal amplification and driving. It employs two 5AR4 vacuum tubes for full-wave rectification, achieving an output power 8W per channel.R8 – EL34 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":58,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"class_list":["post-68","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/pages\/68","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/comments?post=68"}],"version-history":[{"count":0,"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/pages\/68\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/pages\/58"}],"wp:attachment":[{"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/media?parent=68"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}