Discrete Preamp / Headphone ampApplied Diamond Difference designPower output 10,000 mW @ 40 ohm
What's new on the SA-31SE:1, Boost the gain from 10DB (SA-31) to 20DB (High gain model on SA-31SE), even with low output level sources ( like 1.5VRMS), still have enough gain and power for drive the HE6 and low sensitivity headphones.2, For the high sensitivity headphone and preamp output model , we have redesign the new exponential volume control board built in 14 pcs relays (SA-31 only had 8 pcs), it have 100 steps and 100DB level control range, allow users very fine to adjust the volume.The below picture show the volume characteristic , green is with the SA-31, red is with the SA-31SE .3, Redesign the control software, users can quite quickly continuous adjust the volume on front panel, from volume 0 to volume 50, only need around 5 seconds.4, Built in OCC wires .
Fully discrete Diamond Difference design , without any OPA and couple caps in the signal channels. High working voltage (+/-35VDC) class A design .R-core transformers. 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 100 steps volume level control in both high gain mode and low gain mode. The total 200 step volume control ensures smooth control of the volume level.5 Channel RCA inputsPreamp output : RCA * 3 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 , like DALE resistors, EVOX caps (Germany) and the Neutrik sockets*The SA-31 remote control common with other audio-gd DAC remote control, if customer already own the audio-gd brand DAC remote control and want the especial remote control for SA-31, please inform us while place the order.
Sound Characteristics: We describing its retains rich details and high clarity with its abundant music flavor with wide and deep sound stage .
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