Skar Audio SK-M9005D: Compact 5-Channel 900W Class D Car Amplifier

Compact power for a demanding car audio system

The Skar Audio SK-M9005D is a compact 5-channel car amplifier designed to fit tight spaces without sacrificing sound quality. Built as a Class D MOSFET design, it runs cooler and more efficiently than traditional amps, helping to manage heat in smaller installations and freeing up space for other gear.

Inside this small chassis you’ll find big performance: up to 900 watts RMS total power at 14.4V, with 85W RMS on each of the four full-range channels and 450W RMS on the dedicated sub channel. That power distribution gives you the ability to drive a complete system—from crisp front stage to a deep, controlled bass—while keeping headroom for peak moments in music or media playback.

Sound shaping at a glance

The SK-M9005D provides clear control options to tailor your system. High-pass filters help keep full-range speakers efficient by limiting ultra low frequencies, while the low-pass filter on the sub channel and a bass boost option let you dial in your personal bass character. A remote bass knob keeps bass adjustment within reach from the dash for quick tweaks on the go.

• High-pass, full-range, and low-pass crossover options
• Sub channel low-pass filtering for clean bass separation
• Bass boost control for added impact when you want it
• Remote bass knob and cable included for on-dash adjustment

Installation-friendly design

Designed to be installer-friendly and DIY-enthusiast approved, the SK-M9005D uses an 8-gauge power and ground input, a practical speaker output harness, and a compact footprint. Its dimensions are 12.4 inches long, 4.6 inches wide, and 1.7 inches tall, making it a versatile fit under seats, in trunks, or behind dashboards while leaving room for other components.

• 8 gauge power and ground terminals for solid power delivery
• Speaker output adapter harness included to simplify wiring
• Dimensions: 12.4" L x 4.6" W x 1.7" H

Reliability you can rely on

Four-way protection circuitry guards the system against thermal issues, voltage fluctuations, speaker faults, and DC conditions. This focus on protection helps maintain consistent performance across typical driving scenarios and environments, giving you confidence during daily use.

Real-world setups this amp can support

Use case scenarios range from upgrading a basic two-way front stage with a powered sub to powering a more elaborate multi-speaker setup. The channel layout supports four full-range outputs plus a sub, enabling flexible configuration for most passenger vehicles and compact SUVs.