Descriptions

About: Kenwood Excelon X503-1 500W RMS Monoblock Amplifier 

Output Coil with Magnetic Shield

Prevents magnetic flux from radiating from the subwoofer's coil, resulting in reduced noise and enhanced sound quality.

High Quality Capacitors

PMLCAP's (Polymer Multi-Layer Capacitors) are utilized in the LC filter circuits to decrease distortion, ensuring clear detail for a truer to life sound.

Infrasonic Filter (ISF)

When the Infrasonic Filter Switch is turned on, the amplifier cuts off the low frequencies below 25Hz, which makes the amplifier’s power supply and output devices more efficient, providing clear bass output.

One-side Connection

All terminals and connections are on one side foreasier installation and a cleaner look.

Speaker Level Input Harness

Speaker Level Input Harness is included to connect to speaker wires from factory installed receivers.

Wired Level Control Included

The wired remote level control allows you to easily adjust the subwoofer volume.

Product Highlights:

• Max Power 1000W
• RMS Power: 300W (4Ω)
• RMS Power: 500W (2Ω)
• Size (W x H x D): 8-3/8" x 2-1/16" x 5-7/8"
• Variable Low Pass Filter
• Bass Boost
• Infrasonic Filter
• Wired Remote Included

Specifications: 

• Mono subwoofer amplifier
• 300 watts RMS x 1 at 4 ohms
• 500 watts RMS x 1 at 2 ohms
• CTA-2006 compliant
• Class-D amplifier design
• Frequency response: 20-200 Hz
• Variable low-pass filter: 50-200 Hz, 24 dB/octave
• Variable bass boost: 0-18 dB at 40 Hz
• Selectable subsonic filter: 25 Hz, 24 dB/octave
• Wired remote level control included
• Preamp and speaker-level inputs
• Speaker wire adapters included
• Speaker-level inputs can handle up to 12V (36W)
• Signal-sensing turn-on with speaker-level input
• Wiring and hardware not included with amplifier
• 8-gauge power and ground leads recommended
• Fuse rating: 30A x 2
• Dimensions (W x H x D): 8-3/8" x 2-1/16" x 5-7/8"  

What's in the Box:

• Mono subwoofer amplifier (two installed 30A mini-ATC fuses)
• 7" Speaker-level input harness
• Remote level control
• 19.5' Remote level control cable (RJ-14 connectors on both ends)
• Hex nut
• Flat washer
• Four 1/2" screws
• Two Allen keys (4mm & 2.5mm)
• Instruction manual (En/ Sp/ Fr)
• Warranty information