I purchased this amplifier new in December, 2019; then burned it in & used briefly (no more than 10-15 hrs following 150 hrs of burn-in). It has an excellent sound: powerful, slightly warm, strong bass, plus several unique sonic adjustments. This is a hybrid unit: SS amplification + a tube buffer circuit. I’m selling only because I have 7 amps and something has to go.
I paid ~$570 for this amp (including shipping). Will sell for $400, incl. Paypal & shipping w/in CONUS.
Note: there is a tiny ding on the top-plate that I was unable to capture in pictures.
FYI, I have lots of good feedback on Head-Fi (“Pharmaboy”) and USAudioMart (“LD50”).
Here is a review of this unit: https://www.themasterswitch.com/review-hafler-ha75