Technical Highlights

  • Impedance 4Ohm, DC resistance at 3.6Ohm, neodymium magnet system.
  • Voice coil inductance 0.1mH, graphene dome, resonance 1150Hz.
  • Power 30W RMS, frequency response from 1.3kHz to 22kHz, efficiency 90dB.
  • More technical details
Regular price €370.00
Regular price €370.00 selling price €370.00
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ProductASS1

including VAT
Estimated delivery: Sep 17–Sep 22.
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datasheet
StegST650TW
Steg-ST650TW-Kalotten-Hochtöner-masori-kaufen
Two round, gray Scanspeak Automotive Silver R3004/602006 tweeters with black mesh grilles and Neodym Magnetsystem are shown side by side on a white background.
Scanspeak AutomotiveSilver R3004/602006
Regular price €370.00
Regular price €370.00 selling price €370.00

Discover the ASS1 - a technically outstanding dome tweeter from Audio System Italy. With features such as a speaker size of 2.2 inches, an impedance of 4 Ohms, and a DC resistance of 3.6 Ohms, this model definitely stands out. The special features continue with a voice coil inductance of 0.1 mH and dimensions of 25.46 mm, as well as an innovative neodymium magnet system. It is further characterized by the use of modern graphene as the material for the dome and offers an impressive resonance frequency of 1150 Hz. So, let yourself be inspired by the technical brilliance of the ASS1.

Technical Data ASS 1

  • Speaker size 2.2 inches
  • Impedance 4Ohm
  • DC resistance Re 3.6 Ohm
  • Dimensions of the vibrating coil 25.46mm
  • Inductance of the oscillating coil Le 0.1mH
  • Swing coil carrier/VCF aluminum class H copper basket: solid aluminum
  • Material of the cap Dm Graphene
  • Magnetsystem Ms Neodymium
  • Net weight 00104Kg
  • Suspension of the transducer Qms 1.968
  • Suspension of the transducer Qts 1.058
  • Suspension Cone Silk
  • Resonance frequency Fs 1150
  • Frequency response Fr 1.3kHz-22kHz
  • Efficiency 1 W / 1 m SPL 90dB
  • Rated power/Hi-Pass 1500Hz RMS 30w
  • Recommended frequency cut-off: High-pass up to 1500Hz

datasheet

Open data sheet

Frequently Asked Questions about ASS1


What are the main features of the Dome Tweeter ASS1?

The Dome Tweeter ASS1 is characterized by a variety of technical features. It has a speaker size of 2.2 inches and an impedance of 4 Ohm. The DC resistance is 3.6 Ohm, while the voice coil inductance is at 0.1 mH. The neodymium magnet system ensures high efficiency, supported by a graphene-based dome material that contributes to sound quality. The frequency response ranges from 1.3 kHz to 22 kHz, and the efficiency is at 90 dB. The resonance frequency of the tweeter is set at 1150 Hz, ideal for clear highs.

How does the graphene material affect the sound quality of the ASS1?

The dome material of the ASS1 consists of innovative graphene, which provides exceptional stiffness while maintaining low mass. This combination allows for precise reproduction of high frequencies with minimal distortion. Especially in music playback, where clear highs are required, the advantage is clearly evident. Graphene helps minimize any resonances and improves the overall resonance frequency of the tweeter. This material choice results in a balanced and defined sound that remains clear even at higher volumes.

What role does the neodymium magnet system play in the ASS1?

The neodymium magnet system is crucial for the efficiency and performance of the ASS1 Dome Tweeter. Neodymium, known for its strong magnetic performance, allows for a compact magnet design while providing high power. This leads to better drive of the voice coil, resulting in a higher efficiency of 90 dB. The high density of neodymium also helps reduce the weight of the system while maintaining overall performance and sound clarity. This is a significant advantage, especially for mobile or space-saving applications.

What does the resonance frequency of 1150 Hz mean for the ASS1?

The resonance frequency of 1150 Hz is a critical parameter that describes the natural oscillation frequency of the Dome Tweeter without external influences. In the ASS1, this resonance frequency ensures that the frequency range is optimally utilized without unwanted resonances occurring. This is particularly important for the reproduction of music genres that require clear and differentiated highs. This frequency characteristic supports achieving a homogeneous sound image and reduces the risk of distortions that can occur with poor resonance settings.

How does the frequency response of 1.3kHz to 22kHz of the ASS1 behave in practice?

The frequency response of 1.3kHz to 22kHz covers a wide spectrum of frequencies necessary for a clearly defined reproduction of high tones. In application, this range allows for precise design of acoustic elements belonging to high frequencies. Especially with complex musical pieces or sound effects, this enables a differentiated sound image that captures all nuances. From 1.3kHz, mid to high frequencies are covered, which is noticeable in the fidelity and pure sound during music playback.

What is the significance of the efficiency of 90dB at 1W/1m for the ASS1?

An efficiency of 90dB at 1W/1m for the ASS1 means that the Dome Tweeter has a high sensitivity. With just one watt of power, it produces a sound level of 90 dB at a distance of one meter. This is crucial for energy-efficient reproduction of loud sounds without compromising sound quality. Such efficiency is advantageous in environments where clear tones are desired even at low amplifier power. This is particularly evident in continuous and low-noise reproduction even with dynamic musical pieces.

What does the impedance of 4 Ohm mean for the speaker performance of the ASS1?

The impedance of 4 Ohm of the ASS1 is a technical criterion that describes the speaker's resistance to electric current. A lower resistance, like 4 Ohm here, allows more current to flow, which can result in higher speaker performance. This is particularly important when the tweeter is to be integrated into an existing audio system. It enables more effective use of the amplifier and ensures optimal sound distribution in the room in combination with other acoustic components.

What tips are there for installing the ASS1 in the car?

When installing the ASS1 Tweeter in the car, dimensions play a crucial role. With a size of 2.2 inches and a voice coil of 25.46 mm, placement is flexible but should be measured precisely to ensure optimal alignment. Correct placement in the A-area of the car pillar can significantly improve the acoustic result. It is important to choose the installation position so that both the neodymium magnets and the other components are not blocked or disturbed by metal elements. Professional installation can be beneficial.

What influence does the voice coil inductance of 0.1mH have on the ASS1?

The voice coil inductance of 0.1mH in the ASS1 affects the electrical response to alternating current signals sent to the Tweeter. A low inductance means a faster response to frequency changes, leading to improved fidelity. For the ASS1, this is particularly important to maintain sound quality at high frequencies consistently. The precise control and material choice in coil manufacturing allows for stable performance, especially in high-frequency ranges, where quick electrical adjustments are necessary to ensure sound clarity.

Why is the high-pass at 1500Hz recommended for the ASS1?

The recommended high-pass cutoff point at 1500Hz for the ASS1 optimizes the transmission range for high frequencies by filtering out lower frequencies that the Tweeter cannot reproduce efficiently. This protects the Tweeter from unnecessary strain and potential damage from low-frequency signals. The range above 1500Hz is presented more clearly and dynamically, as the load is minimized to the intended bandwidth and energy distribution. This setting maximizes the acoustic performance of the system and ensures better clarity and detail in high-frequency reproduction.

Manufacturer information/responsible person

fortissimo
Dietmar Carle
Bahnhofstr. 23
88048 Friedrichshafen Kluftern
Germany

Contact: didi@fortissimo.de"

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