I have one HiFonics OLM1612 Olympus sub in 2CF box @32hz, four Kenwood 6x9 5-Way Speakers,HiFonics ZXI 6410 4x85 RMS, HiFonics BXI 1610D 1600rms @1 ohm and a cheap sony deck which came with car.
I'm trying to figure out whats next to get. Thinking EQ with a higher preout volts. My sony deck is...