Audio-GD HE1 MK3

1. Difference between HE-1 MK2 and HE-1 MK3 is the chassis and display changes. No sound quality improvements.
2. It has two gain modes for user select to match with the different gain power amps.
3. It has double volume control can match well with the different output level sources.
4. The new design apply the same board of Left and Right channels that make the design exact same,that we can measure and match the boards for assemble in the one unit to ensure the consistency.

The HE-1 MK3 is a fully balanced Class A preamplifier with a built in regenerative power supply. It makes perfect new power and then supplies it to the preamp. It uses all discrete analog stages without any OP amps or coupling caps in the signal path. It has a zero feedback ACSS analog current output stage. The preamp uses three R-core transformers (In total 260W ) and more than 100,000uf audio grade NOVER capacitors are used to ensure ample and smooth power delivery. it has separate class A Power supplies for both the power regenerator and well as the fully discrete preamp that follows it. The HE-1 MK3 uses a four-channel 100 step digitally controlled relay-based volume control to yield superb channel balance. This greatly improves stereo imaging and and improves overall sound quality. It features 5 analog inputs. There are 2 RCA, 2 XLR and a single ACSS input. You even have ACSS output available to your amp as well as an ACSS, RCA or XLR inputs. The preamp can drive 3 power amps simultaneously.

TECHNICAL SPECIFICATIONS