X503-1

The Kenwood eXcelon X503-1 is a compact high-performance Class-D mono amplifier built to deliver clean, hard-hitting bass while fitting almost anywhere in your vehicle. Engineered for subwoofer applications, the X503-1 produces up to 500 watts RMS at 2 ohms with excellent efficiency, low heat output, and premium sound quality.

Featuring adjustable low-pass crossover controls, bass boost, infrasonic filtering, and a wired bass remote, the X503-1 gives you complete control over your low-frequency performance. Its compact chassis and one-sided terminal layout make installation clean and simple for modern audio builds.

Features

• Compact Class-D mono amplifier
• High-efficiency low-heat design
• Variable low-pass crossover
• Variable bass boost control
• Infrasonic filter for cleaner bass output
• Wired bass remote included
• Signal sensing turn-on
• Speaker-level input compatibility
• One-sided terminal layout for easier installation
• CTA-2006 compliant power ratings

Specifications

• Max Power Output: 1000 Watts
• RMS Power @ 4 Ohms: 300W x 1
• RMS Power @ 2 Ohms: 500W x 1
• Amplifier Class: Class-D
• Frequency Response: 20Hz – 200Hz
• Low Pass Filter: 50Hz – 200Hz
• Bass Boost: 0–18dB @ 40Hz
• Infrasonic Filter: 25Hz
• Signal-to-Noise Ratio: 100dB
• Fuse Rating: 30A x2
• Dimensions:
  • Width: 8-3/8”
  • Height: 2-1/16”
  • Depth: 5-7/8”
• Weight: Approx. 3.3 lbs