Superb Headphone amp, OTL topology driven by 6BQ5 Psvane output tubes($200).Tube rectification: 5Y3(Sylvania)
Signal tubes: 12AU7 (National, one per channel) All tubes have very low hours as I only used this for cartridge optimization. They work very well with HIFIMAN headphones. No scratches whatsoever, but I rate an 8 to be conservative. Can be used as a Line stage at the flick of a switch. Paypal add 3%.
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