Morel MDSP84A 4-Channel Class D DSP Amplifier with 8-Channel Speaker Inputs

Morel MDSP84A 4-Channel Class D DSP Amplifier with 8-Channel Speaker Inputs

Compact, precise, and built for seamless OEM and custom system integration, the MDSP84A delivers Morel's high-fidelity Class D amplification and advanced DSP processing across four output channels from a single, installer-focused unit.

Product Overview

The MDSP84A is Morel's 4-channel Class D DSP amplifier in the MDSP series, delivering 80 watts RMS per channel at 4 ohms with bridgeable output of 160 watts x 2 at 2 ohms. Eight high-level speaker inputs provide comprehensive OEM integration capability, accepting the full speaker channel output from most factory head units without a line output converter. Two RCA low-level inputs and an optical digital input offer additional source flexibility, while the USB OTG port supports firmware updates and offline tuning. Morel's Speaker Load Assurance Module (SLAM) maintains factory amplifier stability throughout the integration process. High-resolution 24-bit/96kHz DSP processing with parametric EQ, fully adjustable crossovers, and per-channel input and output EQ provides complete, system-wide fine-tuning. Bluetooth is an optional addition for this model. Start/stop compatibility, automatic source switching, DRC compatibility, and TuneLink multi-amp tuning support make the MDSP84A a flexible, installer-focused platform suited to both OEM upgrades and custom aftermarket builds. Four amplified speaker outputs and four RCA low-level outputs support downstream signal distribution to additional amplifiers.

Features & Benefits

80W x 4 Class D Amplification with Bridgeable Output: Delivers 80 watts RMS per channel at 4 ohms across four channels, bridgeable to 160 watts x 2 at 2 ohms, providing the power headroom needed to drive aftermarket speakers and subwoofers confidently from a single compact amplifier.

8-Channel High-Level Speaker Inputs: Eight high-voltage speaker-level inputs provide comprehensive OEM integration, accepting the full speaker channel output from most factory head units and amplified systems without requiring a separate line output converter.

Optical Digital Input: An optical TOSLINK input accepts digital audio signal from compatible source units, maintaining signal integrity through digital transmission before conversion at the amplifier's 24-bit ADC stage.

USB OTG Input: The USB OTG port supports firmware updates and offline tuning functionality, allowing the amplifier's software to be updated and configuration files to be loaded without a live Bluetooth or network connection.

High-Resolution 24-Bit/96kHz DSP Processing: Onboard DSP processes audio at 24-bit resolution and 96kHz sample rate, providing transparent signal processing with exceptional dynamic range and no audible quantisation noise.

Parametric EQ with Per-Channel Input and Output EQ: Fully adjustable parametric equalisation on both input and output stages of each channel allows precise correction of OEM tonal characteristics and vehicle acoustic deficiencies simultaneously.

Fully Adjustable Crossovers: Crossover frequency and slope are fully adjustable per channel, accommodating any speaker system topology from a single-amplifier full-range configuration to a multi-way active crossover system.

SLAM (Speaker Load Assurance Module): Maintains factory amplifier stability when integrating with OEM systems, preventing load-related faults during speaker-level signal integration.

Signal Summing: Onboard signal summing allows multiple input channels to be combined for flexible routing in OEM integration and complex system configurations.

Start/Stop Compatibility: Compatible with engine start/stop systems, preventing audio interruptions or amplifier faults during stop/start events.

Automatic Source Switching: Automatically selects the active audio source when multiple inputs are connected, eliminating manual source management.

Optional Bluetooth: Bluetooth audio streaming and control is available as an optional addition for this model.

DRC Compatibility: Compatible with Morel's optional DRC controller for physical system control from a dash-mounted location.

TuneLink Multi-Amp Tuning: Supports TuneLink for simultaneous tuning of multiple MDSP amplifiers from a single connected device.

Technical Specs