I recently bought a DD1 from SHCA and tried finding my headunits max undistorted volume. I get distortion way before a signal. All settings are off or flat, I unplugged both RCA’s from the amp and plugged one into the DD1. Im not sure if I have a faulty unit or if my headunit isn’t strong enough for the DD1 to pickup the signal.
for reference:
Headunit: Boss Audio BE7ACP
Amp: Skar Audio RP1500
sub: Skar EVL 12
RCA’s: Rockville