dbshelton 10+ year member
Junior Member
I have both 4 channel amps and really can't tell the difference between them (driving JBL GTO628 and Pioneer 6 x 8 door speakers.) Want to add a 10" Dayton HO 4ohm 600w RMS Sub and want a matching mono amp. Which is a better quality amp Hifonics ZRX 1816.1D or a Rockville RXD-M4 ? Also have a 15" Bravox 300w sub that I may use at times instead of the Dayton 10".