YAQIN SD-CD2 6J1 Sound Upgrade Tube Buffer Processor for CD / VCD / DVD Player

SKU: FM713
Price: US$145.98
In Stock - Shipping within 48 hours Worldwide Free Shipping
  • 100% three dimensional hand wiring
  • It outputs the same voltage as it receives
  • Can be connected in various configurations
  • Makes speakers sound warmer and more finer



This processor employs cathode followers to improve your audio system. It outputs the same voltage as it receives. The voltage gain approaches one. It also adds tube audio quality to digital audio, reduces work load of a receiver (or an amplifier), and makes speakers sound warmer and more finer.

This processor can be connected in various configurations. It is to be installed between an audio source and a receiver (or an amplifer). 



1.The power transformers manufactured with silicon steel sheet and high-quality oxygen-free enameled copper wire;

2.100% three dimensional hand wiring. No circuit board;

3.Utilizes the audiophile capacitors and high quality metal precision resistors dedicated for audio frequency;

4.Beautiful aluminum panel with logo window and steel heavy duty chassis.



Tubes: 6J1 × 2 (Cathode followers,it can be replaced with EF95, 6AK5, and 5654)

Output Jacks: Two channels with two gold plated RCA jacks

Input Sensitivity: 0.55V (As output is 0.5V)

Input Jacks: Two channels with two gold plated RCA jacks

Distortion of Harmonic Wave: ≤0.15%(1KHz input)

Signal to Noise Ratio: >75 dB

Crosstalk Separation: >75 dB

Frequency Response: 5Hz ~ 50KHz (-1.0dB)

Supply Voltage: AC115V, 60Hz

Dimension: 18cm(W) x 12cm(D) x 13cm(H)

Shipping Weight: 2.1kg (4.6lb)

Shipping Dimension: 25cm x 23cm x 19cm



A YAQIN SD-CD2 6J1 Processor

Two 6J1Tubes

A Power plug

A Manual

Customer Questions & Answers


Ola, ele pode ser ligado em tensão 127v do brasil?

4/14/16 4:41 AM Asked.

Ola,It's Ok for 127V,But the order a 120v is better.If you want order a 120v's product you can pay it now.Factory made almost a week and same Price.Thank you.

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hello :)  Is it possible to use a different tube family ( not EF95, etc)via a convertor adapter with this unit?  Thank you.

10/19/18 2:35 AM Asked.

Hi darren, it can only use interchangeable tubes. CD2 uses 6J1 tube, you can find the tube that can be exchanged with 6j1.Thank you!

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