MB Quart Car Audio Systems cheap online buy in the Masori online shop
MB Quart, as an established manufacturer in the car audio sector, stands for first-class components that enable powerful sound reproduction in the car. With a broad portfolio for various vehicle brands such as BMW, VW, Audi, Mercedes, SEAT, or Opel, MB Quart covers almost all requirements for high-quality speaker systems, subwoofers, crossovers, and other car audio accessories. Those who want to take their vehicle audio to the next level will find an extensive range here for precise sound and strong bass, combined with easy integration and well-thought-out plug & play solutions.
Variety of MB Quart Speakers
To meet the individual needs of different vehicles, MB Quart offers a comprehensive range of speaker systems and concepts. Both coaxial systems and component solutions are available in various sizes. This allows the speakers to be precisely mounted, for example, in BMW door panels, VW front doors, or other installation locations, and thanks to impedance matched to the onboard amplifiers, they deliver a detailed sound image.
- Component sets in sizes such as 4", 5", 6.5" or 8"
- Coaxial speakers for simplified installation
- Plug&Play kits for BMW, VW, and other models
- Higher durability through stable membrane and magnet structures
- Optimized terminal blocks for quick installation in the car
All MB Quart speakers are based on clean crossover frequencies, which are realized through specially designed crossovers. This ensures that each component remains in the optimal operating range and signal-related distortions are minimized. Especially in premium vehicles such as Audi, BMW, or Mercedes, the combination of factory electronics and MB Quart speakers harmonizes very well without the need for major wiring changes.
Tabular overview of some models
| Model |
Nominal Power (RMS) |
Size (inches) |
Frequency range (Hz) |
Impedance (Ohm) |
| MB Quart QM200.3 |
100 W |
8" (midrange driver), 1" (tweeter) |
55 - 20,000 |
4 |
| MB Quart QMW165 |
120 W |
6.5" (mid-woofer) |
45 - 21,000 |
4 |
| MB Quart RVM100 |
80 W |
4" (Coax) |
60 - 20,000 |
4 |
Powerful MB Quart Subwoofers
For impressive deep bass, a dedicated subwoofer from the MB Quart range is recommended. Whether in the trunk of a VW Golf, under the seat of a BMW 1 Series, or as a space-saving active solution in a Smart – the selection ranges from small 8" under-seat subwoofers to large 12" drivers with a solid 400 watts RMS. Thanks to coated diaphragm materials and sturdy basket construction, MB Quart subwoofers reproduce low frequencies down to below 30 Hz particularly dynamically. The integrated amplifiers in the active enclosure subwoofers allow for easy retrofitting without an additional amplifier.
- 8" to 12" variants for every vehicle application
- Active subwoofers with integrated Class-D amplifier
- 2 ohm or 4 ohm impedance for different amplifier configurations
- Powder-coated cast baskets for stability
- Deep bass reproduction down to 20 Hz (model-dependent)
Even in sedans like the Mercedes C-Class or Opel Insignia, MB Quart subwoofers produce powerful bass. Suitable cable sets and adapters make installation easier. For particularly compact car audio installations, the space-saving enclosure variants in the spare wheel area or under the seat are ideal. Those who need more power can easily combine the subwoofers with external amplifiers or a more powerful power supply.
Crossover Networks and Signal Splitting
A careful separation of the signals for tweeters, midrange, and woofers is essential for precise sound. MB Quart crossovers perform this task with minimal transition losses. Integrated tweeter protection circuits prevent overloads at very high levels. To account for different body shapes and their acoustic properties, many systems feature individually adjustable crossover frequencies. This allows the sound image to be optimized individually, whether in a SEAT Leon, a BMW 3 Series Touring, or a VW Passat.
- Adjustable high-pass, low-pass, and band-pass sections
- Low tolerances in components for precise transitions
- Additional level adjustment for tweeter (e.g., +3 dB, -3 dB)
- High-quality coils and capacitors for linearized frequency response
Midrange and mid-woofer drivers for perfect detail resolution
Midrange speakers from 3" and mid-woofers up to 6.5" (16.5 cm) play a crucial role in harmonious midrange and precise voice reproduction. MB Quart relies here on stable diaphragm structures made from materials such as Kevlar, fiberglass, or polypropylene. The diaphragms remain dimensionally stable even during long-stroke movements, which favors low distortion in the critical range around 1 kHz to 3 kHz. Thanks to optimized installation depths, these components fit into numerous vehicles without major modifications.
- High sensitivity for powerful sound reproduction of voices
- Linear free oscillation for low-distortion playback
- Load capacity from 60 W to 120 W RMS
- Specially designed rubber seals for longer durability
MB Quart midrange speakers can also be used as a plug & play solution when replacing standard speakers in an Opel Astra or Audi A4. They can be connected directly to the factory wiring, provided the impedance matches. For optimization, it is recommended to additionally use damping materials in the doors to minimize annoying vibrations.
Proper Installation Practice and Accessories
The correct installation of all car audio components is crucial for the final sound. MB Quart products are designed so that installation is easy both in factory openings and in custom-made doorboards. Those who want to be on the safe side can use the installation service on-site in Frankfurt Oder (see https://masori.de/pages/einbauservice) to take advantage of for a professional installation. Additionally, our expert support is available at https://masori.de/pages/faq-und-hilfe assistance at any time.
Important accessories to achieve maximum sound quality:
- Cable kits with sufficient cross-section (e.g., 4 mm² for amplifier cable)
- Adapter rings and speaker frames for precise mounting
- Special clamp connectors for direct connection without soldering
- Soundproofing mats for doors, trunk, or floor panels
- High-quality RCA cabling with multiple shielding
Especially with active enclosure subwoofers, a reliable power supply is important to operate the integrated amplifier without interference. The ground cable should also be kept short and of high quality to minimize noise interference. If you are unsure about the compatibility of individual components with your car sound system, our AI chatbot can help generate tailored suggestions.
Performance and dynamics in every vehicle
Many MB Quart amplifiers and active modules are designed for low impedances of 2 ohms to achieve high output power even with compact dimensions. This results in impressive dynamics, even with only medium-sized enclosures. In a BMW 1 Series or VW Polo, an impressive sound can thus be produced with minimal space requirements. Those with more room in the trunk can use larger MB Quart subwoofers to achieve even more massive pressure in the lower frequency range.
- RMS power from 60 W to 200 W per channel (model dependent)
- Wide frequency response from 20 Hz to 22 kHz
- High sound pressure levels (SPL) for external show installations
- Multichannel amplifiers for complete supply of front, rear, and sub
Plug&Play solutions for BMW and VW
For many BMW and VW models, MB Quart offers ready-made complete systems that can be integrated without major modifications. Customized connectors, predefined wiring harnesses, and precisely fitting speaker mounts simplify installation. Examples include the systems for BMW E9x or VW Golf 7, which significantly improve the factory sound without requiring visible modifications. Common advantages of these plug & play solutions:
- Quick installation thanks to vehicle-specific adapters
- No damage to the original wiring
- Tuned crossovers for harmonic transitions
- High compatibility with factory-installed head units
These sets are ideal for optimizing the audio experience in vehicles such as the Opel Corsa or SEAT Ibiza without deep modifications to the vehicle technology. Those who also want to integrate a subwoofer can easily retrofit the appropriate extensions – the MB Quart components are coordinated with each other and offer high flexibility for future upgrades.
Installation service and technical advice
For all those who want to entrust their car hi-fi system professionally to specialists, installation is offered at the Masori installation service in Frankfurt Oder an. All components, from MB Quart active subwoofers to coaxial speakers and amplifiers, are professionally installed and optimally calibrated. The correct alignment of the tweeters, the padding for the midrange speakers, and the precise adjustment of the crossover frequencies ensure the best possible sound results.
Who prefers to grab the screwdriver themselves will find in the Expert Support and support in the AI chatbot. This allows you to clarify technical specifications, check compatibility with the respective vehicle, or retrieve adjustment tips for the amplifier. The community of car audio enthusiasts and Masori specialists is happy to assist with their expertise.
Sound optimization and possible expansions
After installing an MB Quart system, it is often worthwhile to further refine the sound image through additional equalizer adjustments or separate DSP processors. This allows room resonances in the interior of Mercedes E-Class or Audi A3 to be specifically balanced. In addition, a future-proof expansion is easily implementable if, for example, a second subwoofer or a more powerful amplifier is desired later. Thanks to the modular design, all options remain open:
- Subsequent Installation of External Amplifiers (Mono or Multi-Channel)
- Extension to rearfill speakers for a more spatial sound field
- Integration of digital sound processors (DSP) for fine-tuning
- Upgrade of the power supply (e.g. additional battery, power cap)
Advantages of a gradual system expansion
A gradual upgrade of the car audio system allows you to save your budget and get used to the sound before making further investments. You can start with an MB Quart component set and later add a subwoofer. If needed, the amplifier can also be replaced with a more powerful model if more reserves are required for the speakers. This modularity highlights the flexibility of MB Quart products and their compatibility with a wide range of vehicles.
Summary of the technical highlights
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Membrane materials: Kevlar, fiberglass, polypropylene for ideal stiffness
-
Magnets: High-quality ferrite or neodymium magnets for compact design
-
Crossover networks: Precise crossover points to minimize phase issues
-
Active subwoofer: Class D amplifier with efficiency values around 80% to 90%
-
Performance specifications: RMS ranges from 50 W to 400 W per chassis
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Plug&Play: Vehicle-specific adapter solutions for BMW, VW, and other brands
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Insulation material: Reduction of rattling metal sheets and improved bass focus
Maintenance and Care of MB Quart Components
Even with the best car audio system, maintenance remains an important aspect. Occasionally clean the speaker covers from dust and ensure correct cable polarity when (dis)assembling. A clean power supply protects the amplifiers of an MB Quart active speaker from failures and ensures consistent performance. Regular visual inspections for loose screws or displaced seals prevent quality loss. During extended test phases at high volume, it is advisable to take short breaks to allow the voice coils to cool down.
- Inspection of cable connections and fuses
- Cleaning the membranes with a suitable microfiber cloth
- Careful loosening and tightening of the speaker mounts
- Checking the amplifier settings (gain, filter) after extended use
Your path to the perfect car sound
MB Quart offers a wide range of speaker sets, subwoofers, crossovers, and other accessories for the professional entry or upgrade into the world of high-quality car audio. Thanks to precise installation and thoughtful development, the systems can be flexibly integrated into vehicles such as Audi, VW, BMW, SEAT, Mercedes, or Opel. The sound performance impresses with detailed highs, pronounced presence in the mids, and powerful punch in the bass range. Those who do not want to install it themselves can use the service in Frankfurt Oder to receive a perfectly tuned complete package. For questions or further information about MB Quart components, our expert support is also available via AI chatbot or at https://masori.de/pages/faq-und-hilfe at your disposal.