RP-4500.1D | 4,500 Watt Monoblock Car Amplifier

  • Skar Audio RP-4500.1D 4,500 Watt Class D Monoblock Car Amplifier - Front View

RP-4500.1D | 4,500 Watt Monoblock Car Amplifier

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Skar Audio releases the RP-4500.1D completion grade mono block subwoofer amplifier as the flagship model in the incredibly popular RP amplifier series. The premise of the RP lineup from Skar Audio was that the amplifiers deliver unrivaled power at unprecedented pricing, and this model exemplifies that premise.

Featuring 1/0 AWG inputs, the RP-4500.1D can be fed optimal levels of current from the thickest of power cable. This amplifier comes with a remote subwoofer level control and bass knob allowing the user full control over their bass from the front of the vehicle. This makes for a great amplifier when looking for serious power to get your system loud, and will work great on a single subwoofer around 4,500 watts RMS or a pair of subwoofers around 2,250 watts RMS each. Class D Circuitry design. Stappable: Yes.


Real World Amplifier Dyno Test Results

  • Certified Run - 1 Ohm: 4,313 Watts @ 12.77 volts
  • Uncertified Run - 1 Ohm: 4,448 Watts @ 12.53 volts
  • Dynamic (Burst) Run - 1 Ohm: 6,979 Watts @ 14.55 volts


*Skar Audio always recommends professional installation for all of our products.*


*High power amplifiers producing 1500 watts or more may require additional upgrades to your vehicles stock charging system.*


*Never mount amplifiers directly on the enclosure*



  • Skar Audio RP-4500.1D Monoblock Car Subwoofer Amplifier
  • 1 Ohm Stable Class D Monoblock Subwoofer Amplifier
  • 4 Way Protection Circuitry: Thermal, Voltage, Speaker, DC
  • Max Power @ 1 Ohm: 7,000 Watts x 1 Channel (14.4v)
  • RMS Power @ 1 Ohm: 4,500 Watts x 1 Channel (14.4v)
  • RMS Power @ 2 Ohms: 2,900 Watts x 1 Channel (14.4v)
  • RMS Power @ 4 Ohm: 1,600 Watts x 1 Channel (14.4v)
  • RMS Strapped Power @ 2 Ohms: 9,000 Watts x 1 Channel (14.4v)
  • MOSFET Power Supply
  • Soft Turn on Circuit
  • Frequency Response: 20Hz~250Hz
  • Signal to Noise Ratio: 85dB
  • Damping Factor: 200<
  • Low Pass Filter (Variable): 35Hz~250hz
  • Subsonic Filter: 10Hz~50Hz
  • Bass EQ: 0dB~9dB
  • Remote Bass Knob & Wire Included
  • 1/0 Gauge Power and Ground Terminals
  • Working Voltage: 8.5V-14.4V
  • Fuse Rating: 450 Amp
  • Stapped Fuse Rating: 900 Amp
  • Dimensions: 22.05" (Length) x 8.27" (Width) x 2.44" (Height)

Click Here to Download the Product Manual

Customer Reviews

Based on 10 reviews

This thing is a beast. I got it for my 2 12 vxf's. I think it might be a bit too much for them..lol but im going to take it easy on them until i wear them in some more.. But it got here faster than expected and im really happy with the product.. Thanks SKAR

Great amp and fast shipping!

This amp is a beast! Sleek, clean design with plenty of power!

Super strong

This amp is amazingly stronger than the sk version..i love the rp versions


Great product


This Amp it strong and power hungry I got it on 2 vxf 12s and its giving them every bit of power they can handle loving it just waiting to get my midbass & tweeter for my custom rear deck and my skar build will be complete