The Peachtree GaN400 is $2000.....another $500 gets you a mod that transforms it into an even better power amp.....same with all of the amps mentioned below.
I have modded the LSA Voyager amp (same amp module as in the Peachtree Gan400), different versions of the Purifi amp sold by VTV, the Orchard Starkrimson amp, the Peachtree GaN 1, the VTV D300 and just now finished my first Hypex Nilai stereo amp. These amps are all fantastic with mods. I did not A/B them directly as I had them at different times and with different setups.....but all sound amazing. I personally am into the digital input amps and have a modded VTV D300 here as my reference.....at it is seriously special. I am going to be sending my own modded amp off for review.....stay tuned.
Now for the elephant in the room. Every time Ralph claims that the only thing that matters is a particular distortion type then I have to come in and tell the truth. Send me 4 pairs of Atmasphere class D amps. I will leave one pair stock. The second one I will do my usual mod to. The third one I will add silver WBT jacks, silver plated OFC wire, zippy sounding caps for the output filter, etc. The fourth amp I will use rolled off jacks, wires, caps, etc. The stock amp will sound really good. My modified amp will sound much, much better. The silvered amp will sound forward and zippy and the other amp will sound rolled off and dull. Anyone can hear this without using blind tests.....but even double blind tests will show the same results. The four amps will measure exactly the same!!!!!.....but sound way, way different from each other!!!!! This is the truth.....everything matters. I am not saying the stock amp is not a great amp.....nor am I saying that distortion artifacts don’t alter sound. But this one size fits everyone thing is the same as what ASR does. They say that as long as the amp has low enough distortion then it is inaudible. Ralph says that as long as an amp has a "certain type" of distortion then it is inaudible. Total popycock...total malarkey....he he....I like these silly words. I have been doing listening tests and A/Bs for over 45 years. This (everything makes a difference) has ALL WAYS been there. Please do not listen to anyone (including me).....listen to the gear and decide what is real with your own ears on your own system......THIS IS TRUTH!