I've had many amps including Pass Labs, Bedini, Manley, Sonic Frontiers, PS Audio, Belles and other expensive Audiophile Amps. For the money you cannot DO BETTER. If you have 10k or more US Dollars for an OTL buy it. Otherwise this is the only other option. I have 2 of them. Make sure you get the Deluxe version ( class A ). The pushpull class B not as good, any of them no matter the cost. Only caution remember 20 watrs you need reasonably efficient speakers. My name Zoran Magas from Canada I put my name here because this amp I will stand behind.