Ruthless Audio 4500.1 – 4500W Monoblock Competition Car Audio Amplifier

Ruthless Audio 4500.1 – 4500W Monoblock Competition Car Audio Amplifier
Sold by AudioSellerz.com

The Ruthless Audio 4500.1 is a competition-grade monoblock built for serious bassheads who actually use the power they buy. Rated at 4500W RMS @ 1 ohm (14.4V), this amp is a perfect match for heavy sub setups, small walls, and high-output daily systems that need real power and control.

Designed to be 0.5 ohm stable under warranty when the electrical is done right, the 4500.1 uses a strong power supply, low-frequency Class D topology, Tiffany RCA inputs, and 1/0 power and ground inputs to move serious current and keep the bass brutal and consistent.

Key Specs & Features

• RMS Power (14.4V)

  • 4500W @ 1 ohm

  • 2350W @ 2 ohm

  • 1200W @ 4 ohm

• Competition-Grade Mono Block

  • Class D monoblock subwoofer amplifier

  • Built for demo, SPL, and high-output daily bass systems

• 0.5 Ohm Warranty

  • Includes 0.5 ohm 1-year warranty when run with proper electrical upgrades

  • Designed to handle abuse in real-world low-impedance builds

• Connections & Signal

  • Tiffany RCA inputs for clean, secure signal transfer

  • 1/0 power and ground inputs to support high current draw

• Tuning & Control

  • Input sensitivity: 6V – 0.2V

  • Frequency response: 10Hz – 250Hz

  • Phase adjustment: 0–180°

  • THD @ 4 ohm: > 0.01

• Fusing & Size

  • Required fusing: 400A total (200A per positive run)

  • Dimensions:

    • Length: 25-1/8"

    • Width: 9-1/16"

    • Height: 2.75"

Best For

• Pair of serious 12s, 15s, or a strong 18 on real power

• Small wall builds and big demo dailies

• Stepping up from 2K–3K amps into real “hurt your feelings” power

With upgraded electrical (high output alternator(s), proper AGM/lithium/sodium bank, quality 1/0 wiring, and correct fusing), the Ruthless Audio 4500.1 is a brutal, reliable 4.5K that’s ready to work—backed and shipped by AudioSellerz.com