Schiit Magni 3 Heresy Headphone Amp

Great headphone amp. No issues, just don't need it anymore. Comes with original box and power supply.

From the manufacturer:

The Magni family raises the bar even higher for affordable headphone amps, with by far the highest output power in their price class. At the same time, they provide the cleanest measured performance of any Magnis, ever. Go ahead. Compare these new Magnis to anything out there at the price, and we think you’ll agree: there’s really no competition.

Not Just a “Starter Amp”
Any Magni model is all the amp you’ll ever need, for any headphone. They all have the power, performance, low noise, and versatility to meet all your needs. You’re set from IEMs to hard-to-drive planar designs. With a full 2400mW into 32 ohms, Magni has tremendous power reserves. Combined with low distortion, an exceptionally low noise floor, and switchable gain, all Magnis perform far beyond their price.

Your Choice: High Performance…Higher Performance…Or Highest Versatility
For Magni 3+, we pulled out all the stops in designing the highest performing discrete Magni ever, by any metric—power, distortion, or noise floor. But it’s easy to get even higher measured performance from integrated (op amp) designs, so we decided to give you a choice, with Magni Heresy.

• Choose Magni Heresy for insanely great measurements from an all-op-amp based headphone amp that uses super high quality parts, including a multiple paralleled output stage with feedforward. Magni Heresy is in a black and red chassis.

All Magnis sound fantastic. You really can’t make a wrong choice.

Create a Total Desktop System
All Magnis include preamp outputs. This means you can connect any Magni to your desktop powered monitors for a complete system—or even connect it to a speaker power amp and use it as a preamp. With its built-in time-delayed start-up and instant shut-down, there’ll be no glitches or pops through either headphones or speakers, either.

Designed and Built in Texas
By “designed and built in Texas" this is what we mean: the vast majority of the total production cost of Magni—chassis, boards, transformers, assembly, etc—goes to US companies manufacturing in the US. In the case of the Magni family, the chassis are made in California, the PCBs are made in Nevada, and it all comes together at our Corpus Christi, TX facility.