Kicker 51KPX5001 KPX Series 500W RMS x 1 at 2 Ohms, Class-D Compact Mono Subwoofer Powersports/Marine Amplifier
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What's Inside?
- • KPX Series Class D Monoblock Subwoofer Amplifier
- • 11" RCA input adapter
- • (2) 12" wire ties
- • (4) 1" screws
- • 3mm Allen key
- • Instruction sheet
- • Owner's Manual
Why Choose Kicker 51KPX5001 Marine Amplifier?
Marine-Optimized Amplifier with Durable Design
Built to last, this amplifier features a conformal-coated circuit board that protects internal components from moisture and corrosion. Its compact footprint allows for easy integration in tight spaces while delivering impressive audio quality, and it’s optimized for marine use to maintain clean, clear sound even in high-noise or high-humidity environments.
Weather-Resistant Powersports Subwoofer Amplifier
Designed for harsh powersports environments, this amplifier features a weather-resistant construction for reliable performance. Built-in 24 dB/octave variable low-pass crossover and subsonic filter protect your subwoofer while enabling precise tuning, and the selectable KickEQ™ Bass Boost (0–6 dB at 40 Hz) delivers extra punch for a deeper, more impactful low-end.
Remote-Capable Powersports Amplifier with Flexible Control
Compatible with the CXARC Remote for on-the-go bass adjustment from your handlebars, this amplifier features a wide input sensitivity range for seamless integration with most factory or aftermarket radios. It also supports DBRC remote control, allowing you to manage multiple mono amplifiers or powered subwoofers from a single knob for convenient, centralized audio control.
Frequently Asked Questions (FAQ)
- • Why won't the amplifier turn on after installation?
A blown fuse, weak battery, poor ground connection, or missing remote turn-on signal is the most common cause. Check the power cable, ground wire, fuse, and remote lead before troubleshooting the amplifier.
- • Can I use this with a marine subwoofer?
Yes. It is designed to power compatible marine subwoofers when the impedance and RMS power ratings fall within the recommended specifications.
- • Why does it keep going into protection mode?
Protection mode is typically caused by overheating, a speaker wiring short, or an impedance load below the recommended level. Inspect the wiring and allow the amplifier to cool before turning it back on.
- • Is this suitable for saltwater boats?
Yes. Its marine-grade construction is designed to resist corrosion, moisture, UV exposure, and vibration for reliable performance on the water.
- • Why is there power but no bass output?
This is often caused by incorrect crossover settings, loose RCA cables, or improper subwoofer wiring. Verify the low-pass filter settings and confirm the source unit is sending a bass signal.
- • Why does it become hot during extended use?
Some heat is normal during high-output operation. Make sure the amplifier has sufficient airflow and is not installed inside a sealed compartment with poor ventilation.
- • Can I connect multiple subwoofers to this amplifier?
Yes, as long as the combined impedance remains within the amplifier's supported operating range. Always calculate the final impedance before connecting multiple subwoofers.
- • Why do I hear engine or alternator noise through the audio system?
Electrical interference is usually caused by poor grounding or signal cables routed too close to power wiring. Improving the grounding point and separating signal cables from power wires often eliminates the noise.
- • Should I use marine-grade wiring during installation?
Yes. Marine-grade power and speaker wire provide superior protection against corrosion, moisture, vibration, and saltwater exposure.
- • Can I expand my boat's audio system later?
Yes. You can add compatible speakers, amplifiers, or additional subwoofers if your boat's electrical system can safely support the increased power demand.
- Number of Channels : 1
- Frequency Response : 10-160 Hz
- Built In Crossovers : Yes
- RMS Power Output : 1x500 Watts
- Amplifier Class : D
Features:
- Extremely Compact Footprint: Small, lightweight design fits easily under motorcycle fairings or other tight spaces, making installation simple.
- Dedicated Subwoofer Amplifier: Engineered to drive subwoofers with precision and deliver clean, deep low-end output.
- High Output Power: Provides up to 500 watts RMS into 1 channel, or 300 watts into 2 ohms, ensuring your bass is punchy and controlled.
- Weather-Resistant Design: Built to withstand moisture and other harsh powersports conditions for reliable performance.
- Built-In Crossover Controls: 24dB/octave variable low-pass crossover and 24dB/octave subsonic filter protect your subwoofer while allowing precise tuning.
- KickEQ™ Bass Boost: Selectable 0–6 dB boost at 40 Hz adds extra punch to your low frequencies.
- CXARC Remote Compatible: Optional remote control allows on-the-go bass adjustment directly from the handlebars.
- Easy Integration: Wide input sensitivity range ensures compatibility with most factory or aftermarket radios.
- Expandable Control: Works with DBRC remote for controlling multiple mono amps or powered subwoofers from a single knob.
Specifications:
- Model: 51KPX5001
- Power Output (1Ω Mono): 500 W x 1
- Power Output (2Ω Mono): 300 W x 1
- Power Output (4Ω Mono): 150 W x 1
- Dynamic Power: 750 W
- Frequency Response: 10 – 160 Hz (+0/-3 dB)
- Crossovers: Variable 40–160 Hz low-pass 24dB/octave; Variable subsonic high-pass 10–40 Hz, 24 dB/octave
- KickEQ™ Bass Boost: 0–6 dB centered at 40 Hz
- Dimensions: W 3-5/8" / 92 mm, H 1-11/16" / 42.7 mm, L 8-1/2" / 217 mm
- CXARC Remote Capable: Yes (sold separately)
- UPC: 713034043973
- Weight: 2.1
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.
