Mattoverse MiniDamp headphone amp scratches or scuffs right out

scratches or scuffs right out of the box and there is not much I can do about that

True hardwire bypass

Standard Center-Pin Negative 9VDC Power only (not included) - Current Draw is approximately 30mA

It “works well” with guitar or bass and usually sounds best with the guitar or bass plugged straight into it (first in the pedal chain)

like really bad

Mattoverse MiniDamp headphone amp scratches or scuffs right outThe MiniDamp is a small simple class D audio amplifier with controls for gain and volume. The internal speaker puts out a surprising amount of volume or you can use the speaker output jack to power an external speaker cabinet for more volume and clean headroom. Output is approximately 4 watts at 4 ohms. Can be powered with a DC adapter or 9V battery (not included). Volume and Gain knobs 1 4" Mono Instrument Input 1 4" Mono Speaker Output 9V Battery