Radio Masters · Custom car audio project
Premium sound. Smart design. Unique style. For this 2015 Subaru Impreza, Radio Masters built a compact custom 2.1 sound-quality (SQ) system with carefully positioned full-range speakers, digital sound processing and a bespoke dual-subwoofer enclosure.
9-inch Snapdragon Android head unit with DSP · 4-inch Akisui full-range speakers · 3D-printed speaker enclosures · custom dual 5-inch subwoofer · Ground Zero mono amplifier · tuned 2.1 SQ configuration.
Why We Built a Custom 2.1 SQ System
Great car audio does not always need a large installation or an excessive budget. Our goal was to create a focused front soundstage, clear vocals and controlled bass while keeping the car practical for everyday use.
9-Inch Android Head Unit with Built-In DSP
The system starts with a 9-inch Snapdragon-based Android multimedia head unit. It offers modern features including wireless Apple CarPlay and YouTube. Its integrated digital signal processor (DSP) helps us adjust timing, tonal balance and the front soundstage for more accurate listening.
Custom 4-Inch Akisui Full-Range Front Speakers
Rather than relying only on factory speaker positions, we installed 4-inch Akisui full-range drivers in custom enclosures near the front door corners. We designed and 3D-printed the enclosures to aim the speakers toward the front occupants, helping vocals and instruments appear clearly ahead of the listener.
Made-to-Fit Fabrication and Door Preparation
Vehicle-specific fabrication allows the speakers to sit at the intended angle. The installation also involved access to the door interiors and preparation of mounting areas.
Compact Dual 5-Inch Subwoofer with Ground Zero Amplifier
For low frequencies, we built a compact enclosure containing two 5-inch subwoofer drivers and paired it with a Ground Zero mono amplifier. The enclosure delivers controlled bass without the footprint of a large conventional subwoofer box, preserving more usable luggage space.
Equipment Used in This Subaru Impreza
| Component | Installation |
|---|---|
| Vehicle | 2015 Subaru Impreza |
| Configuration | Custom 2.1 SQ system |
| Head unit | 9-inch Snapdragon Android with integrated DSP |
| Front speakers | 4-inch Akisui full-range |
| Speaker mounting | Custom 3D-printed angled enclosures |
| Subwoofer | Custom enclosure with two 5-inch drivers |
| Amplification | Ground Zero mono amplifier |
| Setup | Professionally tuned 2.1 SQ configuration |
The Result: Detailed Sound Without a Huge Installation
The finished system combines a natural front soundstage with powerful, controlled low frequencies. By carefully choosing speaker positions and building compact enclosures, we achieved a practical upgrade tailored to this Subaru and its owner.
Can Radio Masters Build Something Similar for Your Car?
Yes. We can discuss custom audio upgrades for Subaru, Audi, BMW, Mercedes-Benz, Volkswagen, Toyota, Ford and many other makes and models. A similar concept can often be adapted, but additional vehicle-specific parts, adapters, wiring or custom fabrication may be required. Send us your vehicle make, model and year so we can recommend the right solution.
Frequently Asked Questions
Can you upgrade the sound system in a Subaru Impreza?
Yes. Depending on the model and specification, an upgrade may include speakers, a DSP, an amplifier, a head unit and a compact subwoofer.
What is a 2.1 car audio system?
A 2.1 system uses two main audio channels and a dedicated low-frequency subwoofer channel.
Why use a DSP in a car audio system?
DSP tuning allows adjustment of time alignment and frequency response to help improve tonal balance and sound imaging.
Will a custom subwoofer take up the whole boot?
Not necessarily. A vehicle-specific compact enclosure can reduce the space needed, although the final fit depends on the car.
Can you build this system for a different car?
We can discuss a similar custom system for many makes and models. Additional parts or fabrication may be needed for your specific vehicle.
How much does a custom car audio upgrade cost?
Pricing depends on the vehicle, equipment, fabrication and installation complexity. Contact Radio Masters for a tailored quote.
Want Better Sound in Your Car?
Tell Radio Masters your car make, model, year and what you would like to improve. We can advise on suitable equipment and any additional parts needed for your vehicle.
Ask About Your Car on WhatsAppEvery installation is vehicle-specific. Equipment compatibility, availability and the parts required should be confirmed before booking.
