M-DSPA500: discover the amplifier with DSP audio processor and how to configure it

The M-DSPA500 is a Macrom amplifier designed for those who want to significantly improve their car’s factory audio system while maintaining precise control over every sound parameter. Its distinctive feature is the integration of a digital audio processor (DSP) directly inside the amplifier, allowing management of equalization, filters and time alignment without the need for external devices.

The 5-channel configuration makes it possible to power both front and rear speakers as well as a dedicated subwoofer, making it a complete and compact solution.

Bluetooth App control, available for smartphones, further simplifies system management, making sound customization intuitive yet highly precise.

 

Main technical features

5-channel architecture

M-DSPA500 features a 5-channel structure designed to manage the entire car audio system with a single device. The four main Class AB channels are dedicated to front and rear speakers, ensuring balanced and controlled reproduction of mid and high frequencies. The fifth channel is dedicated to the subwoofer and is built in Class D, a choice that provides higher energy efficiency and more precise control over low frequencies.

This makes the amplifier a compact and complete solution, ideal for those who want to improve audio performance without using multiple separate modules.

 

Power and performance

In terms of performance, M-DSPA500 delivers suitable power for both factory systems and more advanced configurations. The four Class AB channels provide 32 W RMS each, designed to significantly improve speaker dynamics and clarity while maintaining clean and controlled sound reproduction.

The Class D subwoofer channel delivers 170 W RMS, allowing the subwoofer to be driven with authority and precision, enhancing low frequencies without overloading the system.

Signal quality is supported by a frequency response ranging from 20 Hz to 20 kHz, a signal-to-noise ratio above 120 dB, and total harmonic distortion lower than 0.001% at 1 kHz. These values indicate high sound clarity and faithful reproduction even at higher volume levels.

 
Integrated DSP

The core of the M-DSPA500 is its integrated digital audio processor (DSP), which allows extremely precise intervention on the audio signal. The amplifier includes a 7-band parametric equalizer, enabling sound shaping according to cabin acoustics and listening preferences.

The integrated electronic crossover offers different operating modes — bypass, high-pass, low-pass and band-pass — allowing accurate frequency distribution between speakers and subwoofer.

Another key feature is adjustable time delay, which allows proper alignment of channels based on speaker position inside the vehicle. This function is essential for achieving a more realistic and centered sound stage.

The DSP is completed by the Dynamic Bass function, phase adjustment and individual channel mute control, tools that allow further refinement of the final sound result.

 

Bluetooth streaming and control App

M-DSPA500 integrates Bluetooth A2DP connectivity, enabling direct audio streaming from smartphones and compatible devices without physical connections.

Beyond streaming, Bluetooth is also used for full amplifier control via a dedicated App available for Android and iOS.

Through the App, users can intuitively manage all main DSP parameters: output levels, equalization, crossover settings, time alignment and subwoofer adjustments. The interface also allows saving up to five audio presets, making it possible to quickly adapt the listening experience to different music genres or driving conditions.

 

How to configure M-DSPA500 via Bluetooth App

M-DSPA500 configuration is entirely managed through the Macrom App and represents one of the product’s key strengths. It allows precise sound adjustment without physical connections or external tools.

Once the amplifier is installed and wiring is completed, the first step is downloading the Macrom App from the smartphone store, available for both Android and iOS devices.

After activating Bluetooth on the phone, the App connects directly to the amplifier. The connection is immediate and provides access to all DSP functions.

From the main interface, it is possible to adjust output levels for individual channels, adapting speaker and subwoofer volume according to system configuration and cabin acoustics.

The 7-band parametric equalizer section allows targeted intervention on specific frequency ranges, correcting resonances or emphasizing particular sound areas.

Through the electronic crossover menu, high-pass, low-pass or band-pass filters can be configured, selecting the most appropriate crossover frequency for each channel and optimizing signal distribution between speakers and subwoofer.

Another crucial step is time alignment adjustment, which aligns speakers according to their distance from the listening position. This setting improves sound stage coherence and spatial perception.

The App also allows phase adjustment, Dynamic Bass control and muting of individual channels.

Once configuration is complete, up to five audio presets can be saved, allowing quick switching between different sound profiles based on music genre or personal preferences. All changes are applied in real time, making the adjustment process simple yet highly effective.

 

Amplifier installation in the car

Requirements and compatibility

M-DSPA500 is designed to integrate easily into various audio configurations, both with factory systems and more advanced setups.

The amplifier supports high-level inputs, making it compatible with factory head units that do not have preamp outputs. This feature is particularly useful when upgrading sound without replacing the original source unit.

Dedicated wiring harnesses are also available for specific vehicle models, enabling cleaner installation and reducing the need for invasive modifications to the original system.

 

Recommended installation steps

Installing M-DSPA500 requires choosing an appropriate mounting location, typically under a seat or in the trunk, ensuring proper ventilation.

Careful attention must be given to power connections, using appropriate cables and a solid ground point to ensure stability and safety.

After connecting high-level or low-level inputs depending on the system configuration, speakers and subwoofer should be connected to their respective channels.

Once wiring is complete, it is advisable to verify correct system operation before proceeding with App configuration, avoiding adjustments with distorted signals or incorrect connections.

 

Tips to optimize audio with M-DSPA500

To get the most out of M-DSPA500, time should be dedicated to proper DSP tuning.

A recommended first step is correctly setting crossover points, separating frequencies assigned to speakers from those directed to the subwoofer. This avoids overlap and improves overall sound clarity.

The parametric equalizer should be used moderately, intervening only where necessary. Time alignment helps refine the sound stage, making listening more balanced for the driver.

The Dynamic Bass function can be adjusted according to personal preference, maintaining a balance between impact and control.

 

Frequently Asked Questions

Do I need to replace my head unit to use M-DSPA500?

No, the amplifier supports high-level inputs and is compatible with factory head units.

How many audio presets can I save?

Up to five presets can be saved and recalled directly from the App.

Is configuration done only through the App?

Yes, all DSP adjustments are managed through the Macrom App via Bluetooth.

Is Bluetooth only for audio streaming?

No. In addition to Bluetooth A2DP streaming, Bluetooth is used for full amplifier control through the App.

 

Discover M-DSPA500 on our shop!

M-DSPA500 is a complete solution for those who want to upgrade their car audio system with a single compact and versatile device. The integrated DSP, 5-channel configuration and Bluetooth App control allow personalized and high-quality sound tailored to different needs and system setups.

It is an amplifier designed for those seeking precision, ease of use and real control over their listening experience.

Purchase it now on our shop.