{"id":70,"date":"2024-03-14T06:59:32","date_gmt":"2024-03-14T13:59:32","guid":{"rendered":"https:\/\/www.willsenton.com\/?page_id=70"},"modified":"2025-11-29T06:52:26","modified_gmt":"2025-11-29T14:52:26","slug":"r800i-series","status":"publish","type":"page","link":"https:\/\/www.willsenton.com\/zh\/amplifiers\/r800i-series\/","title":{"rendered":"R800i \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

R800i 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

The R-800i series uses two 300B tubes to drive various vacuum tubes for single-ended class A amplification. It comprises a dual triode ECC83S and two 6SN7 signal amplification and driving tubes. The pre-stage part employs a 274B tube for rectification, allowing each channel to achieve an output power of 15W\/30W\/50W.<\/p>\n

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R800i – 211<\/h3>\n

The R-800i – 211 uses two 300B tubes to drive 211 vacuum tubes for single-ended class A amplification. It comprises a dual triode ECC83S and two 6SN7 signal amplification and driving tubes. The pre-stage part employs a 274B tube for rectification, allowing each channel to achieve an output power of 15W.<\/p>\n

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R800i – 845<\/h3>\n

The R-800i – 845 uses two 300B tubes to drive 845 vacuum tubes for single-ended class A amplification. It comprises a dual triode ECC83S and two 6SN7 signal amplification and driving tubes. The pre-stage part employs a 274B tube for rectification, allowing each channel to achieve an output power of 30W.<\/p>\n

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R800i – 805<\/h3>\n

The R-800i – 805 uses two 300B tubes to drive 805 vacuum tubes for single-ended class A amplification. It comprises a dual triode ECC83S and two 6SN7 signal amplification and driving tubes. The pre-stage part employs a 274B tube for rectification, allowing each channel to achieve an output power of 50W.<\/p>\n

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This series features a dual power transformer design, with the filament using an EI-type transformer and the high voltage employing a toroidal transformer design. The output transformers use two wide-frequency EI types to achieve a sweet sound. It incorporates a dual protection circuit design, an all-aluminum alloy body for the utmost refinement, handcrafted point-to-point soldering, an external, independent BIAS ADJ current monitoring meter, a 30-second mute delay function, ALPS motorized potentiometers, an all-aluminum alloy remote control, and balanced pure post-stage input functionality, allowing for independent pre-stage signal input.<\/p>\n

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The body is made from aviation-grade aluminum alloy.<\/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-r800i-805-black-800-400-2.webp” title_text=”willsenton-r800i-805-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

The external independent dB level 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-r800i-805-black-800-400-3.webp” title_text=”willsenton-r800i-805-black-800-400-3″ 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-r800i-805-black-800-400-4.webp” title_text=”willsenton-r800i-805-black-800-400-4″ 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-end speaker connectors are made in Germany, and CNC-machined copper terminals.<\/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 R800i 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=”||70px||false|false” global_colors_info=”{}”]<\/p>\n

Dual Fuses<\/h3>\n

In this series, we utilize a circuit protection design featuring dual fuses.<\/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=”||70px||false|false” global_colors_info=”{}”]<\/p>\n

Dual Transformer<\/h3>\n

In this series, We use a design featuring dual transformers and a separate power.<\/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=”||70px||false|false” global_colors_info=”{}”]<\/p>\n

Additional XLR Input<\/h3>\n

In this series, we’ve added the functionality of an additional XLR input.<\/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 R800i 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 R800i 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

In the preamp part of this R800i series, we use a Czech made ECC83S and two Soviet-made 6SN7 vacuum tubes; for the rectification part, we use our specially customized 274B vacuum tubes with a filament design mimicking the mold screen hook of Western Electric; for the driving and power amp parts, we utilize two of our specially customized 300B vacuum tubes, also mimicking the Western Electric mold screen, and two 805\/845\/211 vacuum tubes for Class A single-ended power amplification. Every component is meticulously hand-wired and soldered, offering effective isolation and shielding, and the body is finished with full aluminum alloy body. This way, perfection is more fully achieved.<\/p>\n

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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%”][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” global_colors_info=”{}”]<\/p>\n

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=”4.27.4″ _module_preset=”default” overflow-x=”auto” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/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

50W + 50W (805)30W + 30W (845)15W + 15W (211)<\/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

12Hz ~ 35kHz (-1.5dB)<\/td>\n

<\/tr>\n

<\/p>\n

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

<\/p>\n

805: 280mV, 845: 300mV, 211: 300mV (Integrated Mode)XLR: 280mV820mV (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

0\u2126, 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

12AX7*1, 6SN7*2, 274B*1, 300B*2, 805*2 \/ 845*2 \/ 211*2<\/td>\n

<\/tr>\n

<\/p>\n

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

<\/p>\n

380W<\/td>\n

<\/tr>\n

<\/p>\n

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

<\/p>\n

92.60lbs (42KG)<\/td>\n

<\/tr>\n

<\/p>\n

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

<\/p>\n

105.83lbs (48KG)<\/td>\n

<\/tr>\n

<\/p>\n

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

<\/p>\n

17.33″W * 10.83″H * 16.14″D (440mm W * 275mm H * 410mm 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” locked=”off” global_colors_info=”{}”][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

[\/et_pb_text][et_pb_tabs _builder_version=”4.27.2″ _module_preset=”default” tab_font=”–et_global_heading_font|600||on|||||” tab_font_size=”18px” custom_margin=”35px||||false|false” global_colors_info=”{}”][et_pb_tab title=”R800i – 805″ _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

\n <\/iframe>\n<\/div>\n

[\/et_pb_tab][et_pb_tab title=”R800i – 845″ _builder_version=”4.27.2″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

\n <\/iframe>\n<\/div>\n

[\/et_pb_tab][\/et_pb_tabs][\/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=”1085″ 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=”832,831,830,828,827,826,825,824,823,822,821,820,819,818,817,816,833″ 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 R800i SeriesIntegrated Vacuum Tube Power AmplifierThe R-800i series uses two 300B tubes to drive various vacuum tubes for single-ended class A amplification. It comprises a dual triode ECC83S and two 6SN7 signal amplification and driving tubes. The pre-stage part employs a 274B tube for rectification, allowing each channel to achieve an output power of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":58,"menu_order":4,"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-70","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/pages\/70","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=70"}],"version-history":[{"count":0,"href":"https:\/\/www.willsenton.com\/zh\/wp-json\/wp\/v2\/pages\/70\/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=70"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}