I bought this used and instantly was impressed with its ability to deliver music full & smooth. It is powerful and finesse. As soon as I bought it, I spent $135 to get a full check and clear for any dry joints (I do this with every piece of used electronic that I purchased). It comes with double locking headphones outputs which is really handy for headphones reviewing and the secure locking mechanism is great for accidentally ripping ( i wish other manufacturers have this feature). I also have Burson Conductor V2+ (for my other system) which I used its DAC output to feed into Audio GD for comparison and it sounds just as full and spacious. In fact, I could not really tell the difference. I thought I would keep it forever but a mate is moving overseas and sold me his Sugden HA4 for a great price and so I could no longer justify having 2 extra amps.
Many revered write ups about it on the net. Please note that It has some marks on the volume control and headphones and Burson are not included. They are in the photos only for physical size comparison.
Excerpt from manufacturer:
Class A design built by discrete analog stages without any OPA or coupling caps in the signal channels.
Non- feedback ACSS and output stage designs just same as our top grade Master 9
Total applied 4 pcs exact matched 150W transistors in pure class A output stage.
3000MW at 25 ohm Pure Class A ,drives most headphones working in pure class A , 8000mW at 40 ohm max output, no matter if you have low sensitivity headphones
+/- 35V DC high voltage power supply built in, Class A PSU's for DC supply.
Uses most Hi-end grade parts and exactly matched transistors, OCC wires.
100 steps digitally controlled relay-based volume control avoids channel imbalance and improves sound quality .
Supper Exponential Volume Characteristic, easy match the volume with very high sensitivity headphones and speakers
10 DB and 19DB gain can drive the high and low sensitivity headphones
5 groups input: RCA X4, ACSS X1
Preamp output : RCA / RCA / ACSS
Headphone amp output: 4pins XLR X1 / 6.3MM X1
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