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Audio System M-90.4 4-Channel Amplifier
SKU:  M-90.4
EAN:  4260101641236
160 Watt

M-90.4

SKU:  M-90.4
EAN:  4260101641236

Technical Highlights

  • Power: 4x 90 WRMS at 4 Ohm, 4x 160 WRMS at 2 Ohm.
  • Efficient 3-stage cooling system ensures lasting performance.
  • Variable subsonic filter, HP, LP, BP filters for optimal sound.
  • More technical details
€299,00
€299,00 €299,00
5% discount with credit card
inkl. VAT , possibly plus shipping
Delivery
May 29, - Jun 1,
x piece
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The Audio System M-90.4 is a black rectangular 4-channel car audio amplifier with multiple ports, labeled AUDIO SYSTEM on top.
€299,00
€299,00 €299,00

M-90.4 by Audio System

The Audio System M-90.4 is a 4-Channel Amplifier in Class A/B technology with SMD technology. It features variable and switchable subsonic filtering as well as HP, LP, and BP filters and can be operated in full active mode. FSA (Front-Stage Adjuster) is integrated. A 3-stage efficient ON TOP fan/cooling system supports operation. The cable remote control RTC is available as an option. The connection can be made via a RCA high-level input or an adjustable signal detection with automatic power on. The output power is 4 x 90 WRMS at 4 Ohm, 4 x 160 WRMS at 2 Ohm, or 2 x 320 WRMS mono at 4 Ohm. The dimensions are 295 x 50 x 185 mm. With aluminum logo.

Features
  • 4-Channel Amplifier
  • 4-Channel Class A/B high-performance amplifier with SMD technology
  • Variable and switchable subsonic filtering
  • HP, LP, BP filters
  • Full active mode
  • 3-stage efficient ON TOP fan/cooling system
  • Cable remote control RTC (optional)
  • FSA (Front-Stage Adjuster)
  • RCA high-level input or adjustable signal detection with automatic power on
  • With aluminum logo
Technical Data
  • 4 x 90 WRMS at 4 Ohm
  • 4 x 160 WRMS at 2 Ohm
  • 2 x 320 WRMS mono at 4 Ohm
  • Dimensions: 295 x 50 x 185 mm

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Audio System M-90.4 Datasheet

Open datasheet

Frequently Asked Questions about M-90.4

What power does the M-90.4 Amplifier provide at 4 Ohms?

The M-90.4 from Audio System delivers a power of 4x 90 WRMS at 4 Ohms. This impressive output ensures clear and undistorted audio transmission even at higher volumes. Thanks to Class A/B technology, the amplifier provides consistent high-fidelity sound, which is ideal for discerning audiophiles who value detailed sound reproduction. This specification makes the M-90.4 the perfect choice for use in more complex car audio setups.

What filter options does the Audio System M-90.4 offer?

The Audio System M-90.4 is equipped with a variety of filter options, including variable and switchable subsonic filtering, high-pass (HP), low-pass (LP), and bandpass filters (BP). This versatility allows you to optimally adjust the sound to the acoustics of your vehicle and emphasize or eliminate specific frequency ranges. Such detailed filter settings are particularly important to achieve a perfectly tuned sound image and ensure that the amplifier harmonizes with different speaker systems.

What are the dimensions of the M-90.4 Amplifier?

The dimensions of the M-90.4 are 295 x 50 x 185 mm. Thanks to this compact design, the amplifier can be relatively easily installed in most vehicles without taking up unnecessary space. Despite its small size, the M-90.4 still offers impressive power reserves, ensuring that there are no compromises in sound quality even in tight spaces. These dimensions allow for flexible placement, whether in the trunk or under the car seat.

Can the M-90.4 Amplifier be controlled with a cable remote?

Yes, the M-90.4 from Audio System can optionally be controlled with a cable remote of type RTC. This allows you to conveniently operate the main settings of the amplifier directly from the passenger compartment without needing access to the amplifier itself. This is especially useful when the amplifier is installed in hard-to-reach locations in the vehicle. The remote ensures that you can make adjustments quickly and easily at any time.

How is the Audio System M-90.4 cooled?

The M-90.4 features a three-stage efficient fan/cooling system that ensures constant performance. This advanced cooling prevents the amplifier from overheating, even during long listening sessions or when used at high power output. This cooling system is crucial to ensure the longevity of the amplifier and to maintain audio quality at a high level. Good cooling is especially essential for powerful amplifiers like the M-90.4 to avoid thermal overload.

Can the M-90.4 Amplifier be operated in full active mode?

Yes, the M-90.4 from Audio System supports the so-called full active mode. This operating mode allows the crossover and amplification stages of the amplifier to be configured so that each speaker channel is addressed independently. This makes it a versatile solution for adjustments in complex audio playback systems that focus on personalized sound quality. This mode enables finer tuning and control over the entire audio setup and is ideal for users who want to perfectly customize their sound settings.

What power does the M-90.4 amplifier deliver at 2 ohms?

When the M-90.4 is operated at 2 ohms, the power increases to 4x 160 WRMS. This capability allows for intense sound dynamics even with demanding music styles and enhances the experience of a full and powerful sound. This specification demonstrates the flexibility and strength of the amplifier, which operates stably even at this low impedance. In particular, car audio enthusiasts who value strong bass benefit from this feature without sacrificing reliability.

How is the M-90.4 turned on when using RCA?

The M-90.4 from Audio System features adjustable signal detection with an automatic power-on mechanism when the RCA high-level input is used. Once an audio signal is detected, the amplifier turns on by itself, minimizing installation effort and simplifying everyday operation. This is particularly advantageous in vehicles, where it is important to ensure a simple entry into audio playback. This automatic detection provides comfort and seamless functionality, especially when starting to drive.

What channel configuration is possible with the M-90.4?

The M-90.4 from Audio System is a 4-channel amplifier that can also be bridged if needed to optimize power output. In parallel operation, it offers 4x 90 WRMS at 4 ohms or 4x 160 WRMS at 2 ohms. When bridged, the amplifier delivers 2x 320 WRMS mono at 4 ohms. This flexible configuration allows the amplifier to be adapted to different speaker setups, whether for regular stereo applications or more powerful mono channels for subwoofer operation. Thus, the M-90.4 offers many customization options.

Is the M-90.4 amplifier equipped with an FSA (Front-Stage Adjuster)?

Yes, the M-90.4 features an integrated FSA (Front-Stage Adjuster) that allows you to precisely adjust the soundstage. With the FSA, the audio output can be finely tuned to create an optimal front stage, directing the sound more towards the front speakers. Such adjustments are particularly useful for achieving a harmonious sound image and enhanced stereo separation in vehicle cabin settings. The FSA helps to adjust the sound to match personal listening preferences.

Manufacturer information / responsible person

Axel Förderer
Audio System Germany
Falltorstraße 6
76707 Hambrücken
Germany

Contact: info@audio-system.de

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