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Yuan Jing
https://www.yuan-jing.com/
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Yuan Jing Audio - Power Amplifier
https://www.yuan-jing.com/index.php?route=product/category&path=59
LM1875 + NE5532 Stereo Power Amplifer Board [30W + 30W] - Output Power (Watt) : 30W + 3..
Yuan-Jing Audio; Guangzhou, Audio Amplifier Iraud-350 Amp
https://www.radiomuseum.org/m/yuanjing_prc_en_1.html
PRC: Radio Catalog for the radio manufacturer Yuan-Jing Audio; Guangzhou. Here you can view a Radio Catalog for the selected Manufacturer/Brand on ONE page - and may use «Ctrl-F» to find models, but we recommend the normal search because the sorting here is done by computer without human intervention. Be aware that this page is static and ...
Yuan-Jing Mono Audio Power Amplifier Board 1 x 350W
https://www.parts-express.com/Yuan-Jing-L20-Mono-Audio-Power-Amplifier-Kit-AMP-350W-Board-320-6520
Yuan-Jing Mono Audio Power Amplifier Board 1 x 350WYuan-Jing uses KD1047 and KB817 planar silicon output transistors for excellent control, low-distortion, a wide range of voltage support, and a high-power and high-current output load. Symmetrical positive and negative power supplies are required for operation.Specifications: • Power output: 1 x 200 watts @ 8 ohms, 1 x …
Yuan-Jing TDA7850 4 x 50W Audio Amplifier Board
https://www.parts-express.com/yuan-jing-tda7850-4-x-50w-audio-amplifier-board--320-6516
The TDA7850 is a breakthrough MOSFET technology class AB audio power amplifier designed for high power car stereos. The complementary 4-channel output structure allows a rail to rail output voltage swing which, combined with high output current and minimized saturation losses, sets new power reference in the car-radio field, with unparalleled distortion performances.
E19 headphone amplifier board K2381 J407 MOSFET Yuanjing …
https://www.diyaudio.com/community/threads/e19-headphone-amplifier-board-k2381-j407-mosfet-yuanjing-audio.294456/
I have a Sennheiser HD598 headphone currently used with the headphone amp section of a Tianyun Zero DAC with very good results. Just for the fun of it, I decide to build a solid state separate headphone amp. I found the YuanJing assembled board at a very good price...
E19 headphone amplifier board K2381 J407 MOSFET Yuanjing …
https://www.diyaudio.com/community/threads/e19-headphone-amplifier-board-k2381-j407-mosfet-yuanjing-audio.294456/page-4
The main course is the replacement of the output transistors with 2 pairs of 2SK2013/2SJ313 which are TO-220 lateral MOSFET designed for audio application. The E19 board is a well constructed 2-sided PCB. Removing the 2SK2381/2SJ407 should be carefully done. I strongly recommend a strong suction desoldering iron and lots of desoldering wick.
Battle of the Cheap Line Stages - Wall of Sound | Audio ...
https://wallofsound.ca/misc/diy/battle-of-the-cheap-line-stages-part-2/
Listening Impressions, substituting the Yuanjing for the Audio Research Reference 3: After my usual break-in cycle, I connected up the Yuanjing in place of the ARC Ref 3, just to make sure it was working properly and not doing anything odd. I played 2 or 3 of my standard auditioning tracks mentioned back in Part 1 of this article.
Audio Amplifier Iraud-350 Amp Ampl/Mixer Yuan-Jing Audio;
https://www.radiomuseum.org/r/yuanjing_audio_amplifier_iraud_350_amp.html
Class D Digital Power Audio Amplifier board on Half-Bridge configuration. Based on one IRS-2092 Protected Digital Audio Amplifer I.C., one IRFB-23N20D DC-DC Converter Mosfet and two IRFB-4227 Power Mosfet. Maximum Power 700W with 4 ohm load, 350W with 8 Ohm load. Built-in Dual Rectifier circuit. Input Sensitivity 1.6V; Input Impedance 14 kohm.
Modding the Yuanjing 6N11 Headphone Amplifier
https://www.radioworld.com/news-and-business/modding-the-yuanjing-6n11-headphone-amplifier
Fig. 1: The Yuanjing 6N11 Headphone Amplifier out of the box. To find it, search “YJ 6N11 Tube headphone Amplifier” on Amazon.com or eBay.com.Several models should appear with prices in the $30–$40 range, mostly shipped free from China.
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