YULONG Audio A8 Fully Balanced Headphone Amplifier Symmetric Difference Carda

Product Price: $2,836.88 USD

  • Product Model: Model: MUIA9832001
  • Product Weight: Shipping Weight: 8kg
  • Product Quantity: 3 Units in Stock

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YULONG Audio A8 Fully Balanced Headphone Amplifier Symmetric Difference Cardas Cable
100% Brand New


All items guaranteed 100% BRAND NEW in the original edition Box.


Sabre A8 is fully discrete, fully balanced, high current head phone amplifier and preamplifier. Each channel is constructed by two ways of fully separate amplifier. There are two sets of 6.35mm unbalanced outputs, XLR balanced headphone output, 4 pin XLR balanced headphone output, and XLR balanced preamplifier output. It accepts RCA and XLR inputs.
It is fully symmetrical-differential amplifier and the inputs are made with 2SK389/J109 twin JFETs in common-source common-base configuration (Wallman's amplifier), which is ultra low distortion and ultra wide bandwidth. The output is made with MJE15030/31 power transistor, and each and every transistor used are hand picked, hand matched by transistor tester. The working points are adjusted under different temperature conditions making sure the ultimate stability.
To achieve ultimate performance, we have tested and implement quality part including two 120W Nuvotem toroidal transformers for separated left and right channel power supply, and TO-3 package Vishay precision resistor, Neutrik sockets.
Using the expensive Cardas line
There are safety circuits in place to protect itself and headphones, such as over heat protection, over load protection and delayed start.

THD+N: 0.0006%
Crosstalk >100dB
Frequency response:20-20KHz-0.2dB
Balance output power :600ohm:700mW 300 ohm:1350mW 150 ohm:2700mW 32 ohm:5W
unbalance output power: 600ohm:180mW 300 ohm:300mW 150 ohm:700mW 32 ohm:2000mW
Power Consumption: <80W.
Dimensions: 435*350*75mm.
Weight: 8Kg.

Use note: use balance input can get better performance , Input signals from the rear panel switch selection. Two headphone jacks of the front panel is double jack, can connect double 3 pin balance headphones, also can connect 6.35 headphones. 4 pin balanced output can only be connected 4 pin headphones, not through the connector to connect unbalanced headphones, otherwise it will damage it.
If you use a same source to feed A8, do not connect the RCA and XLR interconnects altogether. This will cause common ground interference and degrades the performance of the RCA input signals. (This applies not only to A8 but other similar products in our tests).

This product was added to our catalog on Saturday 07 July, 2018.