Technical Highlights

  • 125W RMS per channel at 4 ohms, optimal for clear sound.
  • 260W RMS at 4 ohms in bridged mode, ideal for subwoofers.
  • Frequency response 5Hz-25kHz, minimizes distortion, 2 ohms.
  • More technical details
Regular price €400.00
Regular price €400.00 selling price €400.00
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ProductAS4120 24V

including VAT
Estimated delivery: Sep 15–Sep 18.
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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.

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datasheet
Audio System ItalyAU75.4
Audio System Italy-AU75.4-4-Kanal Verstärker-masori-kaufen
Steg-QM100.2-2-Kanal Verstärker-masori-kaufen
StegQM100.2
Regular price €400.00
Regular price €400.00 selling price €400.00

The AS4120 from Audio System Italy is a 4-channel amplifier specifically designed for mobile use in 24Volt systems, characterized by absolute versatility. With four separate channels, it is capable of reproducing any music genre. It offers both pre-amplified (Pre-In) and high-level (Speaker-In) inputs for connection with all head units. Whether in mono for a 3-channel system with a subwoofer and front speakers or in stereo for a powerful 2-channel system, the AS4120 is uniquely versatile. Additionally, it stands out due to high-quality components and a complete, bypassable crossover system, with the heat dissipation system optimized to direct heat to the heat sink and then dissipate it through the amplifier sides.

Technical Data
  • Operating voltage 24V
  • RMS power at 14.4V
  • 125 Watt RMS x 4 @ 4Ohm
  • 160 Watt RMS x 4 @ 2Ohm
  • 260 Watt RMS x 2 @ 4Ohm
  • Minimum Load Resistance: 2 Ohms
  • Frequency range: 5 Hz - 25,000 Hz
  • LP/HP 50 -750Hz
  • Hz Filter depth: 12dB / octave
  • Bass boost 0 + 12 (45Hz)
  • Input sensitivity: Volt RMS 0.2 V to 5 V
  • Dimensions 385 x 52 x 230 mm
  • Weight: 4.60 kg

datasheet

Open data sheet

Frequently Asked Questions about AS4120 24V


What power does the Audio System Italy AS4120 Amplifier deliver?

The Audio System Italy AS4120 is a 4-channel amplifier that delivers impressive power. At a supply voltage of 14.4 V, it reaches 125 Watts RMS per channel at 4 Ohm and 160 Watts RMS per channel at 2 Ohm. When operated in bridge mode, it delivers 260 Watts RMS at 4 Ohm for two channels. These configurations allow for flexible adaptation to various speaker systems and sound needs in your vehicle. The amplifier is also extremely versatile and supports both mono and stereo configurations, allowing you to choose between a 3-channel or 2-channel system based on your preferences.

What is the frequency range of the AS4120 from Audio System Italy?

The AS4120 4-channel amplifier from Audio System Italy features an extremely wide frequency range of 5 Hz to 25,000 Hz. This enormous range means that the amplifier is capable of accurately processing both deep bass and high frequencies. The integrated LP/HP filter setting from 50 to 750 Hz allows for detailed adjustment of the transmission frequencies, enabling you to modify the sound to your liking. Together with a filter depth of 12dB per octave, you can optimally adjust the audio signal to create a rich and detailed sound image.

What inputs does the Audio System Italy AS4120 support?

The AS4120 amplifier offers broad compatibility with various audio sources thanks to its pre-in and speaker-in inputs. This allows you to send both pre-amplified and high-level signals from your head unit to the amplifier. The input sensitivity ranges from 0.2 V to 5 V RMS, providing high flexibility in selecting connected devices. This versatility is particularly useful when you want to use different music sources in your vehicle, as you can integrate almost all common head units. Especially when aiming for the highest sound quality, this is a crucial feature.

How is the Audio System Italy AS4120 installed in a vehicle?

When installing the Audio System Italy AS4120 Amplifier, size plays a crucial role in finding a suitable place in the car. With dimensions of 385 x 52 x 230 mm, you can easily install it in the trunk or under the seat, provided there is enough space. A well-thought-out heat dissipation system ensures that heat is effectively dissipated through the heat sinks and the sides of the amplifier, which is essential for safe use in a mobile environment. The installation also requires adherence to the minimum load of 2 Ohm to ensure the best possible musical performance.

What role does the bass boost play in the AS4120 Amplifier?

The bass boost in the Audio System Italy AS4120 is an important feature to tailor the sound to your personal taste. The amplifier offers the ability to boost the bass at 45 Hz by up to 12 dB. This particularly supports music genres that benefit from a stronger bass response by emphasizing lower frequencies. You can use the bass adjustment to flexibly change the sound depending on the environment and personal preference. This functionality significantly contributes to the versatility of the amplifier and allows you to create a customized listening experience in the car.

What applications does the AS4120 Amplifier offer?

The Audio System Italy AS4120 offers various applications in a mobile environment due to its versatility. You can use it as part of a 3-channel system with a Subwoofer and front speakers in mono mode or utilize it in a powerful 2-channel stereo configuration. These options make it an adaptable element suitable for different system concepts. Its high-quality components and bypassable crossover system ensure that you can dynamically adjust the sound as needed. This way, you can cover different music styles and requirements according to your preferences.

What minimum load must be observed with the AS4120?

The Audio System Italy AS4120 Amplifier requires a minimum load of 2 Ohm to function optimally. This specification is crucial as it ensures that the amplifier operates within its technical limits, thus guaranteeing the best possible performance while ensuring longevity. It is important to ensure that the speakers are selected according to the minimum load of the amplifier to avoid overloading the circuit. The technical flexibility and the ability to work in various configurations is one of the strengths of the amplifier.

How heavy is the AS4120 Amplifier from Audio System Italy?

The Audio System Italy AS4120 Amplifier weighs 4.60 kg. This weight is quite moderate for an amplifier in its category and allows for relatively easy handling during installation in the vehicle. The weight is important to ensure optimal mechanical stability while also facilitating transport and placement in the car. Especially when the amplifier is used in more compact vehicles or in limited space, it is useful to consider the weight. The thoughtful design takes into account compactness without sacrificing powerful audio technology.

What role does the input sensitivity play in the AS4120 Amplifier?

The input sensitivity of the AS4120 Amplifier from Audio System Italy ranges from 0.2 V to 5 V RMS. This flexibility allows for use with a variety of audio sources and head units, as the amplifier can efficiently amplify signals within this voltage range. The ability to adjust the sensitivity accordingly means that you can optimally match the volume to different sources to avoid distortion and maximize sound clarity. This is particularly beneficial when you are looking for different audio sources or want to fine-tune the sound balance in your vehicle.

Why is the crossover system of the AS4120 bypassable?

The bypassable crossover system in the AS4120 Amplifier allows for flexible adjustment of the audio signal according to the specific requirements of your vehicle's speakers. With this system, you can modify the emphasis on certain frequency ranges to shape the sound profile exactly to your liking. Whether you want to enhance or attenuate specific frequencies, the bypassable system gives you the opportunity to customize your entire audio setup. This is especially advantageous for adapting the sound to different listening experiences or meeting specific audio requirements and preferences in your car.

Manufacturer information/responsible person

fortissimo
Dietmar Carle
Bahnhofstr. 23
88048 Friedrichshafen Kluftern
Germany

Contact: didi@fortissimo.de"

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