Sony XM-8ES Mobile ES™ Series 8-channel car amplifier — 100 watts RMS x 8 subwoofer grille You'll get great bass response

You'll get great bass response from a single box

spacer/adaptor rings are included

screw terminals

There's no reason to say goodbye to that listening experience when you add the i407-WRA-JL

4 Flat-washers

Sony XM-8ES Mobile ES™ Series 8-channel car amplifier — 100 watts RMS x 8 subwoofer grille You'll get great bass responseProduct highlights: 8 channel car amplifier 100 watts RMS x 8 at 4 ohms 165 watts RMS x 8 at 2 ohms 330 watts RMS x 4 bridged at 4 ohms high resolution Class D amp technology frequency response: 10 40,000 Hz variable high pass, low pass, and bandpass filters (50 5,000 Hz, 12 dB octave) More info: resonance damping aluminum chassis and gold plated connectors preamp and speaker level inputs speaker level inputs handle up to 16V (require RCA adapters)