Skar Audio RP-1200.1D Monoblock Class D MOSFET Amplifier with Remote Subwoofer Level
- 1200 watts RMS at 1 ohm, 1-ohm stable
- 1600 watts max output
- Bass EQ switch at 0, +6 and +12 dB
- Gain, low-pass and subsonic adjustments
- 4-gauge power and ground terminals
- Remote bass knob included
- 16 x 6 x 2.5 inches, 7.2 pounds
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A one ohm stable class D monoblock subwoofer amplifier with a remote bass knob and four way protection. It is aimed at a pair of subwoofers or a single large one.
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ASIN: B07F1FXPH1Model: RP-1200.1DCategory: Amplifiers
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Overview
A car audio builder running one or two subwoofers gets a compact class D monoblock here, with a user control panel on the amplifier. The panel holds a bass EQ switch plus gain, low-pass and subsonic filter controls, and a bass knob mounts at the front of the vehicle.
Heavy terminals for power and ground suit the high current draw, and the protection circuits guard against overheating and low voltage. The supply range is listed from a low minimum to a slightly raised maximum, which gives some tolerance for a weak vehicle system.
Who it's for
Installers powering a pair of mid sized subwoofers, or one large one, from a single channel. Owners with a weak electrical system or a space tight trunk should check the supply and size first.
Pros and cons
- One ohm stable output
- Remote bass knob included
- Four way protection circuits
- Oversized power terminals
- Needs strong electrical supply
- Single channel only
- Long body for tight spaces
Performance notes
A MOSFET power supply and class D output stage convert the vehicle supply to high power with little wasted heat. The oversized terminals carry current with less loss, and the filters and EQ let the amplifier be tuned to the subwoofer and enclosure.
Specifications
| Brand | Skar Audio |
|---|---|
| Model | RP-1200.1D |
| Dimensions & fit | |
| Item dimensions | 16 x 6 x 2.5 inches |
| Item weight | 7.2 pounds |
| Capacity & performance | |
| Maximum output power | 1600 watts |
| Output power | 1200 watts at 1 ohm |
| Power & efficiency | |
| Voltage | 14.4 volts |
| Maximum supply voltage | 14.5 volts |
| Minimum supply voltage | 8.5 volts |
| Compatibility & installation | |
| Mounting type | Surface Mount |
| Included components | |
| Included components | Bass knob and wire, instruction manual, amplifier |
| Warranty & support | |
| Warranty description | 2 year limited warranty |
| Other details | |
| Number of channels | 1 |
Frequently asked questions
What wire size do the terminals take?
The description says the amplifier has oversized 4-gauge power and ground terminals.
How many subwoofers can it run?
The description says it suits a pair of 600 watt RMS subwoofers or a single 1,200 watt RMS subwoofer.