Absolutely spectacular headphone amp with built in preamp
Simply incredible. I've mine paired with a AK4490 DAC and AKM K712 Pro headphones. The most detailed, natural and immediate sound I've ever heard. More revealing than my home sound system with real drive and impact where called for and laid back and nuanced where required. Plenty of detail and texture to the sound. Compares favorable to my darTZeel NHB108 + Aurum Cantus F620 speakers at home
I'm running an Amperex 6AS7 and a Melz 6H8C hold plate tube in mine and low the sound it provides. I replaced the easy to pull off volume knob with a solid aliminum knob. No other changes needed.
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