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Black rectangular car amplifier with silver heatsink fins and terminal connections visible

Skar Audio

Skar Audio RP-1200.1D 1600W Class D Monoblock Car Amplifier

SKU CH-MF58-X7RQF

Monoblock Class D subwoofer amplifier delivering 1,200 W RMS at 1 ohm with 20 Hz–250 Hz response and four-way protection

  • TypeAmplifiers
  • Delivers 1,200 watts RMS at 1 ohm for deep bass impact
  • Runs stable at 1 ohm to maximise subwoofer wiring flexibility
  • Four-way protection guards against thermal, voltage, speaker and DC faults
  • Frequency response 20 Hz to 250 Hz covers the full subwoofer range
  • High signal-to-noise ratio of 85 dB keeps low frequencies clean

Skar Audio RP-1200.1D Monoblock Amplifier

The Skar Audio RP-1200.1D is a Class D monoblock subwoofer amplifier built for car audio systems that demand high output from a single channel. It delivers up to 1,600 watts peak power at 1 ohm and is rated 1-ohm stable for low-impedance loads. This amplifier suits enthusiasts driving one or more subwoofers wired to a 1-ohm final impedance. Buyers who need multi-channel amplification or full-range frequency coverage should look elsewhere.

Power Ratings at Key Impedances

RMS power is specified at three load points: 1,200 watts at 1 ohm, 800 watts at 2 ohms and 500 watts at 4 ohms, all measured at 14.4 volts. Peak power reaches 1,600 watts at 1 ohm. The single figure that decides compatibility is the 1-ohm stability combined with the 1,200-watt RMS rating at that load. Match your subwoofer wiring and power requirements to these exact numbers before purchasing.

Thermals, Noise and Protection

A four-way protection circuit monitors thermal, voltage, speaker and DC conditions to shut the amp down before damage occurs. The high-speed MOSFET power supply and soft turn-on circuit limit inrush current and reduce turn-on thump. Frequency response spans 20 Hz to 250 Hz with a signal-to-noise ratio of 85 dB and a damping factor of 150, indicating controlled cone movement within the subwoofer band.

Highlights

  • Delivers 1,200 watts RMS at 1 ohm for deep bass impact
  • Runs stable at 1 ohm to maximise subwoofer wiring flexibility
  • Four-way protection guards against thermal, voltage, speaker and DC faults
  • Frequency response 20 Hz to 250 Hz covers the full subwoofer range
  • High signal-to-noise ratio of 85 dB keeps low frequencies clean

Specifications

TypeAmplifiers

Questions about this item

How much continuous power does the 1600-watt peak rating actually deliver to a 1-ohm subwoofer?

At 1 ohm the amplifier produces 1200 watts RMS at 14.4 volts, which is the continuous output you can rely on during normal listening.

What limits does the 20 Hz to 250 Hz frequency response place on system tuning?

The band-pass range is fixed between 20 Hz and 250 Hz, so the amp only amplifies bass frequencies within that window.

What gauge power and ground wiring does the 1200-watt RMS rating require for a safe installation?

A 1200-watt Class D monoblock at 14.4 volts typically needs 4 AWG power and ground cable with a 150-amp fuse near the battery.

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