Morel MPD 5.550 5-Channel Class-D Car Amplifier (75W x 4 + 250W x 1 @ 4Ω | 110W x 4 + 400W x 1 @ 2Ω | Ultra-Compact Chassis)

Complete Audio System Power: Morel MPD 5.550 5-Channel Amplifier

The Morel MPD 5.550 is an all-in-one Class-D amplifier designed to power an entire car audio system—front speakers, rear speakers, and a subwoofer—from a single compact chassis. Engineered with Morel’s commitment to sound fidelity, the MPD 5.550 delivers clean output, wide dynamic range, and minimal distortion, making it an ideal choice for stealth installations without compromising on acoustic performance.

Key Features & Highlights

• All-in-One 5-Channel Output: Powers front components, rear coaxials, and a subwoofer simultaneously from one unit.

• High-Efficiency Class-D Topology: Generates substantial power output while maintaining cool operation and low current draw.

• Versatile Power Configuration: Delivers 75W x 4 + 250W x 1 at 4 Ohms, or up to 110W x 4 + 400W x 1 at 2 Ohms on the sub channel.

• Bridgable Main Channels: Front and rear channels can be bridged to 220W x 2 at 4 Ohms for high-power 2-way component setups plus subwoofer.

• Precision Tuning Controls: Independent variable high-pass filters for full-range channels, plus low-pass and subsonic filters on the dedicated subwoofer channel.

• Compact Footprint: Engineered to easily fit under seats or in tight boot compartments.

• Multi-Stage Safety Protection: Integrated protection circuits guard against thermal overload, short circuits, overcurrent, and internal errors.

Technical Specifications

• Brand: Morel

• Model: MPD 5.550

• Amplifier Class: Class-D

• Number of Channels: 5 Channel

• RMS Power Output (4 Ω): 75 Watts x 4 + 250 Watts x 1

• RMS Power Output (2 Ω): 110 Watts x 4 + 400 Watts x 1

• Bridged RMS Power (4 Ω): 220 Watts x 2 + 400 Watts x 1 (@ 2 Ω Sub)

• Frequency Response (Full Range): 20 Hz – 30,000 Hz

• Frequency Response (Subwoofer Channel): 10 Hz – 220 Hz

• Signal-to-Noise Ratio (SNR): > 93 dB

• Total Harmonic Distortion (THD): < 0.2%

• High-Pass Filter (HPF): Variable 50 Hz – 300 Hz (12 dB/octave)

• Low-Pass Filter (LPF): Variable 50 Hz – 300 Hz (12 dB/octave)

• Subsonic Filter: Variable Off – 50 Hz (12 dB/octave)

• Recommended Power/Ground Cable: 4-Gauge

• Fuse Rating: 1 x 80A

• Dimensions (L x W x H): 294 mm x 148 mm x 48 mm (11.6" x 5.8" x 1.9")

Frequently Asked Questions

Can the Morel MPD 5.550 power a complete car audio system on its own?

Yes. The 5-channel design is specifically built to drive 4 full-range speakers (front and rear component or coaxial speakers) along with a dedicated passive subwoofer, eliminating the need for multiple amplifiers.

Does this amplifier support OEM factory head unit integration?

Yes. It features flexible input handling. For vehicles without aftermarket RCA pre-outs, high-level speaker signals can be connected using the optional Morel MPS-HL high-level adapter.