I recommend the QX-2350 amplifier from Phoenix gold. It features continuously variable 30 to 600Hz highpass/lowpass crossover with defeat. Muting circuitry for soft turn-on and turn-off(speaker protection) and advanced overload and thermal protection circuitry(amp protection). Gold plated high current terminals and signal input RCA jacks. Unique chrome powder coated finish with die-cast gold plated logo badges for signature effects. Nominal power of 125watts X 2 into 4ohms @ 14.4volts or maximum bridged power 350watts X 1 into 4ohms @ 14.4volts. Crossover slope 12 dB per octave with a QLINKable function to easier target the best frequency. S/N 100dB and adjustable 45Hz bass boost up to +15dB gives you clear possibilities.
I recommend an enhancement for the modulation of the bass performance. Introducing the BASS Cube from a specialist in the aftermarket field of car audio. If you guessed the company (Phoenix Gold) then you know what to expect from such a product. It's designed to be placed inline between the crossover and the subwoofer amplifier. It gives a nitro boost for the frequency you dial-in on the remote mounted in or under your dash. The dial-in range for boost is 20Hz - 110Hz with a subsonic filter for the low distortion frequencies and adjustable for maximum push. With the base unit only 7" X 5 1/4" X 1 1/4" it fits discreetly into any install. If you have ever heard this BASS Cube perform, you will always wonder what you did without it.
