PRESS RELEASE: Due to the unprecedented amount of orders Down4sound has received over the past few weeks, we have encountered some unforeseen delays as a result of depleted stock. Please be assured that the entire Down4sound team is working tirelessly to get every order processed and shipped as fast as possible. We value every single one of our customers and greatly appreciate your patience and understanding of the situation we are facing. Thank you all and be blessed.


MSRP: $772.00
Price: $600.00
(You save $172.00 )
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The 175.4 competition series amplifier is a 175 watts per channel @ 4 ohms or 250 watts per channel @ 2 ohms. It is not 1 ohm stable. We know alot of our customers love their low end ground pounders but want their mids and highs to keep up. That's why we offer such a large 4 channel amp.

We believe that "Overkill is Under-Rated". For power inputs it will accept 4 awg for power and 4 awg for ground.

  Features Voltage 175.4
Output Power (RMS) 4 ohm 14.4V 175Wx4
  2 ohm 14.4V 250Wx4
  1 ohm 14.4V n/a
  1 ohm 16V n/a
  1 ohm 18V n/a
Input Sensitivity 6V~0.2V    
Low high Filter Switchable    
( @ 24 dB Slope) Variable Hz 10~300
Bandpass Filter Switchable    
( @ 24 dB Slope) Variable Hz 30~300
Frequency Response   Hz 20-20Khs
Signal to Noise Ratio   dB 105
Damping factor     200<
THD @ 4ohms Less than 0.1%
Fuse Rating 140 Amps
Indicator Power   Yes
  Protection   Yes
  Clip   Yes
Speaker & Power terminal Mold Type   Yes
  Power Gauge 4Ga
Heatsink Length inch/mm   20.59"/650mm
Heatsink Width inch/mm   9.38"/66mm
Heatsink Height inch/mm   2.35"/59.6mm