Fully discrete Diamond Difference design , without any OPA and couple caps in the signal channels. High working voltage (+/-35VDC) class A design .
More than 25,000uf audio grade NOVER capacitors are used to ensure ample and smooth power feed.
For larger power drive, the output stage applied two pair 15A / 150W Toshiba transistors , power output 10,000mW @ 40 ohm, no matter for most headphone in world.
2 group class A dedicated PSUs are used to purify the power supply, the amp working at high idle class A model .
Digitally controlled relay-based volume control to avoid channel imbalance and improve sound quality. SA-31 has 80 steps volume level control in both high gain mode and low gain mode. The total 160 step volume control ensures smooth control of the volume level.
5 Channel RCA inputs
Preamp output : RCA * 2 / ACSS (The ACSS output can connect to audio-gd ACSS power amp )
Headphone output : 4 pins XLR / 6.3MM SE (10W @ 40 ohm) (The XLR still single-ended output, just for who have balanced plugs headphone but use with the SA-31 )
Memorizes all settings and it could resume the last settings when power on.
Applied high end grade parts , the Neutrik XLR sockets, 6.3 " headphone scoket and RCA sockets.
*The SA-31 remote control common with other audio-gd DAC remote control, if customer already own the DAC (NFB-10SE, NFB-9 ) remote control and want the especial remote control for SA-31, please inform us while place the order.
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