Technical Highlights

  • Power: 4x 90 Watts RMS@4 Ohm, Impedance: 4 Ohm.
  • Power: 4x 130 Watts RMS@2 Ohm, Impedance: 2 Ohm.
  • Strong: 2x 420 Watts Max.@4 Ohm, SNR: 95 dB S/N.
  • More technical details
Regular price €450.00
Regular price €450.00 selling price €450.00
2% discount with credit card

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ProductASS90.4

including VAT
Estimated delivery: Sep 16–Sep 21.
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1 year extra warranty

Every product purchased from Masori includes an additional year of warranty in the third year after purchase (months 25–36). We cover repair or replacement free of charge for covered warranty claims. Automatic and free – exclusively for Masori customers. Your statutory rights remain unaffected.

Warranty terms
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The ASS90.4 is a quality product from Audio System Italy. As a 4-channel amplifier, it is equipped with innovative ADC (Advanced D-Class Technology), which ensures pure listening pleasure while maintaining a compact size with unmatched performance efficiency. Additionally, the ASS90.4 is characterized by its efficient use of heat, thanks to a specially designed heat sink made from a combination of extruded and die-cast aluminum. It is the perfect choice for a top-notch audio system.

TECHNICAL DATA

  • 4x 90 Watt RMS @ 4 Ohm
  • 4x 130 Watt RMS at 2 Ohm
  • 2x 300 Watt RMS at 4 Ohm
  • 4x 125 Watt Max. at 4 Ohm
  • 4x 180 Watt Max. at 2 Ohm
  • 2x 420 Watt Max. at 4 Ohm
  • Harmonic distortion 0.1 % THD
  • Signal-to-noise ratio 95 dB S/N
  • Dimensions 317 x 210 x 54 mm

Frequently Asked Questions about ASS90.4


What output power does the ASS90.4 Amplifier provide at different impedances?

The ASS90.4 Amplifier delivers versatile power outputs at various impedances. At 4 Ohm, it provides 4x 90 Watts RMS, while at 2 Ohm it generates 4x 130 Watts RMS. If a configuration of 2x 300 Watts at 4 Ohm is desired, this can also be realized. Additionally, the amplifier achieves peak outputs of 4x 125 Watts Max. at 4 Ohm and 4x 180 Watts Max. at 2 Ohm, plus 2x 420 Watts Max. at 4 Ohm. These dynamic power specifications make it an excellent choice for various audio setups.

What advantages does the ADC (Advanced D-Class) technology of the ASS90.4 offer?

The ADC (Advanced D-Class) technology of the ASS90.4 Amplifier offers various advantages, including high power efficiency, a compact design, and a clear listening experience. This technology minimizes power loss, leading to lower heat generation and thus extending the amplifier's lifespan. The advanced D-Class architecture ensures excellent sound quality with a distortion rate of only 0.1% THD. Another advantage is the outstanding signal-to-noise ratio of 95 dB S/N, which provides impressive sound clarity.

How does the design of the heat sink contribute to optimizing performance?

The specially designed heat sink of the ASS90.4 is made from a mix of extruded and die-cast aluminum, which contributes to optimal heat dissipation. This construction minimizes thermal hotspots and ensures an even distribution of internal heating. The efficient heat exchange allows the amplifier to remain stable even under high power demands, thereby enhancing overall performance and reliability. This cooling design offers a significant performance advantage, especially for users who frequently operate their audio system under heavy loads.

What are the dimensions of the ASS90.4 and how do they affect installation in the vehicle?

The ASS90.4 has compact dimensions of 317 x 210 x 54 mm, making it relatively easy to install in most vehicles. These dimensions allow the Amplifier to be integrated into a variety of storage spaces in the vehicle, whether under a seat or in a trunk compartment. Since space is often limited in car audio setups, the small dimensions ensure that the ASS90.4 can also be flexibly and space-savingly accommodated in smaller vehicles without compromising on performance.

How low is the harmonic distortion of this Amplifier?

The ASS90.4 Amplifier features an extremely low harmonic distortion of 0.1% THD (Total Harmonic Distortion). This means that the Amplifier is capable of passing the incoming signals to the speakers almost unaltered. Especially at high volumes and complex musical passages, the sound quality remains stable and clear. A low THD value is particularly important for audiophiles who desire precise music reproduction without losses or distorting distortions.

What does the signal-to-noise ratio of 95 dB S/N mean for sound quality?

A signal-to-noise ratio of 95 dB S/N in the ASS90.4 Amplifier means that the useful signal is 95 decibels above the noise level. This ensures that the audio signal is reproduced with the highest clarity and minimal background noise. This high value is crucial for top-notch sound quality, as it allows for a wide dynamic range, even at lower volumes. For users who value detailed and interference-free music playback, this Amplifier is an excellent option.

How powerful is the ASS90.4 in bridge mode configurations?

In bridge mode, the ASS90.4 Amplifier can achieve impressive power, delivering 2x 300 Watts RMS at 4 Ohm. This is ideal for applications where high power requirements for powerful Subwoofers or specific speaker configurations are needed. The bridge mode capability enhances flexibility in audio planning in vehicles, enabling intense sound reproduction and thunderous bass lines. The Amplifier remains efficient while providing the additional power without compromising on sound quality.

What tips are there for installing the ASS90.4 regarding its compatibility with different cars?

When installing the ASS90.4 in the vehicle, attention should primarily be paid to the dimensions of 317 x 210 x 54 mm. This compact design facilitates integration in various installation positions, whether under seats or in side compartments. When choosing the installation location, care should be taken to ensure that the heat sink remains unobstructed to guarantee optimal heat dissipation. A stable power supply and correct wiring are also essential to fully utilize the amplifier's performance.

Can the ASS90.4 amplifier handle high maximum power stably?

The ASS90.4 amplifier easily handles high maximum power of 4x 125 Watts Max. at 4 Ohm, 4x 180 Watts Max. at 2 Ohm, and 2x 420 Watts Max. at 4 Ohm, thanks to its special design and high-quality components, especially in demanding audio applications like live music or action-packed film soundtracks, where peak performance is required. The advanced heat sink and efficient power distribution contribute to stability and consistent performance without overheating or loss of power. This way, you can enjoy pure sound even at high volume.

What makes the ASS90.4 amplifier an optimal choice for a high-end audio system?

The ASS90.4 amplifier is the ideal choice for a high-quality audio system thanks to its advanced ADC (Advanced D-Class) technology, low harmonic distortion, and high signal-to-noise ratio of 95 dB S/N. With flexible power options ranging from 4x 90 Watts RMS at 4 Ohm to 2x 300 Watts RMS in bridged mode, it is well-suited for various speaker and subwoofer combinations. The effective aluminum heat sink allows for efficient heat dissipation, making it extremely reliable, especially under intense sound demands.

Manufacturer information/responsible person

fortissimo
Dietmar Carle
Bahnhofstr. 23
88048 Friedrichshafen Kluftern
Germany

Contact: didi@fortissimo.de"

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