Ruthless Audio 4500.1

Ruthless Audio 4500.1
Sold by AudioSellerz.com.

The Ruthless Audio 4500.1 is one of those amps you don’t buy unless you’re serious. This is a competition-grade monoblock built to live at 0.5 ohm (with proper electrical) and 1 ohm when strapped, designed for heavy abuse in demo builds, competition setups, and violent daily systems.

If you want to keep that 0.5 ohm warranty, you better have your electrical right—this amp is ready to work, but it expects the rest of the system to keep up.

Power Ratings (14.4V)

• 4500 watts RMS @ 1 ohm

• 2350 watts RMS @ 2 ohm

• 1200 watts RMS @ 4 ohm

Competition-grade design rated at 14.4V, built to deliver real power in real vehicles where voltage and impedance swing under load.

Operating Limits & Warranty

• Stable down to 0.5 ohm per amp (with proper electrical support)

• 1 ohm when strapped

• Includes 0.5 ohm one-year warranty on manufacturer defects when used within recommended guidelines

• Recommended fusing: 400 amps total (200 amps per positive run)

• Strongly recommended:

  • Big 3 upgrade

  • Quality AGM or lithium battery/batteries

  • Proper grounds and 1/0 wiring throughout

Features & Specifications

• Inputs & Connectivity

  • Tiffany RCA inputs

  • 1/0 gauge power and ground inputs

  • Input sensitivity: 6V – 0.2V

• Tuning & Response

  • Frequency response: 10 Hz – 250 Hz (subwoofer range)

  • Phase adjustment: 0–180°

  • THD @ 4 ohm: > 0.01

• Included

  • Remote bass knob for at-seat sub level control

Physical Dimensions

• Length: 25-1/8"

• Width: 9-1/16"

• Height: 2.75"

Long enough to look serious on an amp rack, slim enough to fit clean in most trunks, hatches, and walls.

Why Get Your Ruthless 4500.1 from AudioSellerz.com

• Sold by AudioSellerz.com – we actually run high-power gear and can help you plan electrical, loading, and sub choice around a 4500.1, not just throw it in a cart.

• Real-world advice – want to run 0.5 ohm daily, strap a pair, or chase numbers at the lanes? We can help talk through what your build really needs.

• Fast, careful shipping – amps are packed to survive the trip so your Ruthless 4500.1 shows up ready for war, not repair.