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Black metal monoblock car amplifier with terminal block and control knobs

Skar Audio

Skar Audio RP-1500.1D 1500W RMS Monoblock Sub Amplifier

SKU CH-XT5Z-5HY6C

Delivers 1500 watts RMS at 1 ohm with Class D efficiency and four-way protection circuitry

  • Product typeAmplifier Installation Kits
  • 1500 watts RMS at 1 ohm drives demanding subwoofers
  • 1900 watts peak power handles dynamic bass transients
  • Class D topology delivers high efficiency with low heat
  • Four-way protection circuitry safeguards against thermal, voltage, speaker and DC faults
  • Oversized four-gauge terminals enable maximum current flow

What the amplifier delivers

The Skar Audio RP-1500.1D is a Class D monoblock subwoofer amplifier built for car audio systems that demand high output from a single channel. It suits owners who want strong, reliable bass in a daily-driven vehicle without stepping into exotic price brackets.

Controls that shape the sound

The built-in user panel includes a bass EQ switch with 0, +6, and +12 dB settings plus a subsonic filter and low-pass crossover so you can match the amplifier to the enclosure and driver. Four-way protection circuitry covering thermal, voltage, speaker and DC faults keeps the amp and subwoofer safe during extended high-power use.

Wiring and installation notes

Oversized 4-gauge power and ground terminals accept thick cable for maximum current flow at the rated 14.4 V supply. The amplifier is 1-ohm stable, but impedance must match the subwoofer wiring exactly or the protection will trigger. Secure mounting and adequate ventilation are required because the compact chassis concentrates heat under sustained load.

How it compares

Measured against everything we stock in Amp Wiring Kits & Install Parts, at today’s prices. Recalculated every night.

Price $219.99
Pricier than about 93% of the 259 comparable items (median $12.99).

Specifications

Product
Product typeAmplifier Installation Kits

Questions about this item

Will the 4-way protection circuitry shut the amp down if the MOSFET power supply overheats during long sessions?

Yes, the built-in thermal protection monitors the MOSFET supply and will interrupt output before damage occurs, then resume once temperatures fall back to a safe range.

At what impedance does the amplifier hit its 1,500 W RMS ceiling first when driven continuously?

The 1,500 W RMS rating is specified at 1 ohm (14.4 V); at 2 ohms the continuous rating drops to 930 W RMS and at 4 ohms to 550 W RMS.

How much heat does the Class D design put into the cabin when the amp runs at 1,500 W RMS all day?

Class D topology keeps efficiency high, so only a fraction of the 1,500 W RMS becomes heat; the oversized 4-gauge terminals and advanced PCB layout further reduce resistive losses.

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