Electronic Express Store via eBay [ebay.com] has Pioneer GM-DX975 Limited Edition 5-Channel Class-D Car Amplifier w/ Bass Knob on sale for $419.99 - 20% off when you apply coupon code NEWYEAR20 at checkout = $335.99. Shipping is free.

Product Specs:

• 5-channel car amplifier
  • 75 watts RMS x 4 + 350 watts RMS x 1 at 4 ohms
  
  
  • 100 watts RMS x 4 + 600 watts RMS x 1 at 2 ohms
  
  
  • 200 watts RMS x 2 bridged at 4 ohms + 600 watts RMS x 1 at 2 ohms
  
   


• CTA-2006 compliant


• Class-D amplifier design


• frequency response of 4-channel section: 10-50,000 Hz (Hi-Res capable)


• variable high- and low-pass filters (40-500 Hz, 12 dB/octave) on 4-channel section


• variable low-pass filter (40-500 Hz, 12 or 24 dB/octave) on sub channel


• wired remote controls bass boost (0-18 dB at 50 Hz) for sub channel


• preamp and speaker-level inputs
  • gold-plated RCA connections
  
   


• wiring and hardware not included with amplifier
  • 4-gauge power and ground leads recommended
  
   


• fuse rating: 30A x 3


• dimensions; 12-7/16"W x 2"H x 7-7/8"D