KGUSSTopping A70Pro Fully Balanced Headphone Amplifier Preamp - 17000mWx2 Output Power, 2 Gain, R2R Relay Volume Control, Full Color Dispaly HiFi Audio Support Extensions(Silver)

Probably the very best headphone amplifier out there. I've had it for nearly two years, and it's been trouble free. Unbelievable power, will drive virtually any headphone, completely transparent and distortion free, and has a really cool set of features including some great options for VU meters in its electronic display. Was only $400, so an absolute steal. Don't know why anyone would want anything else. It has my highest recommendation. It is literally as good as it get.

I bought this and the topping A90 D. I compared the tw. I found no real great difference in the audio. but the overall versatility of the topping A7-0 pro made the choice a no brainer. just the ability to set a volume safety so you do not blow up your headphones makes this a clear choice. I am using it as a headphone amp only. So I can not say anything about the pre-amp capabilities of this unit. Like the remote control as well.

I purchased this as a part of a stack paired with the D70 Pro OCTO DAC and I absolutely love it. This amp is perfect for my needs. It powers my Arya's to earbleeding levels with absolutely no hiccups, distortion, or dropouts. I would say it definitely provides the amount of power advertised. I really enjoy the built-in high resolution, high refresh rate screen. It makes this feel like a very modern piece of gear, as it is.

I put together the A70Pro D70Pro Octo and it's a mind blower. I'm convinced technology can't get better than this stack. I also have an SMSL SP400/M400 which is right up there with it. Pair it with something more affordable that outputs 5 volts like an SMSL DL200 or SMSL D-6s and you don't have to melt down a credit card. I've got both the SMSL's and tried both, it's just the best amplifier I've ever heard for detail and silent noise floor. The warning on the menu before going into high gain is reassuring. Firmware is a breeze to install with the new method.If your white whale is the Hifiman HE6se, you can do a -6.9db preamp reduction for an autoeq profile and still blow the doors off volume on those things even on pre-volume war recordings (it was the first thing I had to try). To compare, on my Topping A90 it ran out of volume wheel in high gain trying that with a 4 volt D90 DAC. The only problem is it's going to make everything else you have sound like a disappointment. Put the Hifiman Arya Stealth on this, and say goodbye to your holy grail quest to upgrade every 2 months...

Awesome headphone amp with enough clean power to drive all but the most stubborn cans.