Kicker 48KXMA9005 KXMA Series 5-Channel 125W RMS x 4 at 2 Ohms + 5th Channel 400W RMS x 1 at 2 Ohms, Class-D Full Ranged Marine Amplifier with KMBLC Remote Bass Level Control Included
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What's Inside?
- • KXMA Series Class D 5-Channel Full-Range Marine Amplifier
- • (4) 2" screws
- • (4) Flat-washers
- • (2) 3/8" screws
- • 3mm Allen key
- • 19.5' Remote cable (RJ-11 connectors on both ends)
- • KMBLC Remote bass level control
- • Power chart
- • Kicker power certification
- • Amplifier information sheet
- • Owner's Manual
Why Choose Kicker 48KXMA9005 Marine Amplifier?
Marine-Grade 4-Channel Class D Amplifier with KickEQ™ Bass Boost
Designed for marine environments, this amplifier features REAL MARINE™ construction with anti-corrosive terminals, stainless-steel screws, conformal-coated circuit boards, and ABYC/NMMA-compliant power connections for long-lasting durability. Its efficient Class D design delivers powerful output across four full-range channels and one dedicated subwoofer channel in a compact chassis. The adjustable KickEQ™ Bass Boost (0–6 dB at 40 Hz) provides deep, punchy low-end, allowing you to fine-tune your subwoofer performance with ease.
Precision DSP Marine Amplifier with Independent Crossovers
This amplifier features a variable 24 dB crossover on each full-range and subwoofer channel, allowing precise control of frequency output. The DSP-controlled preamp ensures clean, distortion-free audio with optimized channel separation. Gain control with a “Gain Match” LED indicator provides quick visual confirmation of optimal input levels, while the gasket-sealed control panel protects gain, crossover, and KickEQ™ settings from water, salt, and moisture without limiting easy access for adjustments.
Marine Amplifier with Remote Subwoofer Control and Expandable Design
This amplifier includes a wired subwoofer remote, allowing on-the-fly adjustment of subwoofer levels without leaving your seat. Full-range RCA outputs make it easy to expand your system with additional amplifiers without running new signal cables. The durable black anodized aluminum chassis features a top-mounted teal LED light pipe for both style and visibility, and included stainless-steel mounting hardware ensures secure installation in marine and powersport environments.
Frequently Asked Questions (FAQ)
- • Why won't the amplifier power on after installation?
A blown fuse, poor ground connection, weak battery, or missing remote turn-on signal is usually the cause. Check the power, ground, fuse, and remote wiring before troubleshooting the amplifier itself.
- • Can it power both speakers and a subwoofer?
Yes. As a 5-channel amplifier, it is designed to power multiple full-range speakers along with a compatible marine subwoofer.
- • Why does the amplifier keep going into protection mode?
Protection mode is commonly caused by overheating, a wiring short, or a speaker load below the recommended impedance. Inspect all wiring connections and allow the amplifier to cool before restarting it.
- • Is this suitable for saltwater environments?
Yes. It is built with marine-grade materials that resist moisture, corrosion, UV exposure, and vibration when properly installed.
- • Why do my speakers work but the subwoofer doesn't?
This is often caused by incorrect crossover settings, loose subwoofer wiring, or improper RCA connections. Verify the low-pass filter settings and confirm the subwoofer channel is configured correctly.
- • Why does the amplifier get hot during long days on the water?
Some heat is normal during extended high-output operation. Ensure the amplifier has adequate ventilation and is not installed inside a tightly enclosed compartment.
- • Can I connect additional amplifiers later?
Yes. Many boat owners expand their systems with additional amplifiers as long as the electrical system can support the increased power demand.
- • Why do I hear engine or alternator noise through my speakers?
Electrical interference is usually caused by poor grounding or signal cables routed too close to power wiring. Improving the ground connection and separating RCA cables from power wires often eliminates the noise.
- • Should I use marine-grade wiring for installation?
Yes. Marine-grade power and speaker wire provide superior protection against corrosion, moisture, and harsh marine conditions compared to standard automotive wiring.
- • Can I upgrade my boat's audio system in the future?
Yes. You can add compatible speakers, subwoofers, or additional marine amplifiers if your boat's charging system has sufficient electrical capacity.
- Maximum Power : 900 Watts
- Number of Channels : 5
- Frequency Response : 10-20000 Hz
- Amplifier Class : D
- Fuse Rating : 100 A
Features:
- Versatile 5-Channel Marine Amplifier: The Kicker KXMA900.5 delivers 75W x 4 @ 4 Ohm, 125W x 4 @ 2 Ohm, or two bridged outputs at 250W x 2 @ 4 Ohm, plus a powerful mono subwoofer channel (200–400W) for full-range marine audio performance
- Marine-Grade Durability: Built with marine-grade speaker terminals, stainless-steel screws, conformal-coated circuit boards, and ABYC/NMMA-compliant power and ground connections
- High-Efficiency Class-D Amplification: State-of-the-art Class-D design provides ample power in a compact chassis with minimal heat
- Main Channel Power Output: 75W RMS x 4 @ 4 Ohm, 125W RMS x 4 @ 2 Ohm, 250W RMS x 2 @ 4? bridged (@14.4V, ≤1% THD+N)
- Subwoofer Channel Power: 200W x 1 @ 4 Ohm, 400W x 1 @ 2? or 1 Ohm, delivering deep, punchy bass (@14.4V, ≤1.5% THD+N)
- Flexible Input Options: High (speaker-level) or Low (line-level) input selection for easy integration with any source
- Independent Channel Controls: Amp1 & Amp2 feature adjustable gain, crossover switches, frequency range selectors, and backlit “Optimal Input” LEDs to prevent clipping
- Advanced Sub Controls: Subwoofer channel includes input gain, LP frequency, sub-sonic filtering (10–80Hz), and KickEQ+ bass boost (+6dB centered at 40Hz)
- Auto Turn-On Options: Choose +12V, DC Offset, or audio signal sensing; REM terminal outputs +12V when using DC Offset or Audio modes
- Protection Monitoring (PRT LED): Red LED alerts for low voltage, thermal shutdown, shorted outputs, or improper operating voltage
- Marine-Grade Wiring Terminals: Screw-down terminals support 4 AWG power/ground wiring; ABYC/NMMA compliant for marine installations
- External Fuse Required: No built-in fuse; use a 100A external fuse within 18" of the battery for safe operation
- Remote Bass Level Control: KMBLC remote included with 19.5' cable for convenient front-seat bass adjustments
- Signal Pass-Through Expansion: RCA line outputs allow connection to additional amplifiers
- Compact Marine Footprint: Dimensions are 12.75" W x 2.19" H x 8.26" D for flexible mounting in marine environments
- Marine Use Advisory: Designed for marine environments but not waterproof; avoid mounting in areas exposed to water
Specifications:
- RMS Power Output (Watts x Channels): 75 x 4
- Frequency Response at Rated RMS Power: 1k Hz
- THD at Rated RMS Power: 1%
- Signal to Noise Ratio: 95 dB
- Input Voltage: 14.4v
- Peak Power Output (Watts x Channels): N/A
- Power at 2 Ohms (Watts x Channels): 125 x 4
- Bridged Power (Watts x Channels): 250 x 2
- Minimum Impedance Bridged: 4
- Minimum Impedance Unbridged: 2
- Amplifier Class: D
- Low-Pass Crossover Frequency: 10 Hz – 5000 Hz
- Low-Pass Slope (dB/octave): 24 dB/octave
- High-Pass Crossover Frequency: 10 Hz – 5000 Hz
- High-Pass Slope (dB/octave): 24 dB/octave
- Bass Boost: 0–6 dB
- Bass Boost Frequency: 40 Hz
- Fan Cooled: No
- Fuse Rating: 100
- Speaker Level Inputs: Yes
- Preamp Outputs: No
- Height: 2-1/4 inches
- Width: 12-3/4 inches
- Depth: 8-5/16 inches
- UPC: 713034020646
- Weight: 7.2
- 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.
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This amp’s got everything. You don’t have to worry about your speakers and sub as it can power them all with the amp. Sound quality is excellent and the build is decent. Clean sound and the controls really work, especially the filters, resulting in a much better audio quality.
