3. Car Amplifier
  5. Twister F4-650

Twister F4-650

260 Watt

Twister F4-650

Technical Highlights

  • Power @4Ω 14.4V, 0.1% THD: 4 x 170W, 2 x 520W bridged.
  • Power @2Ω 14.4V, 0.1% THD: 4 x 260W, impedance options available.
  • Frequency Response: 5-25000Hz, High-pass: 20-150Hz, 12dB filter.
  • More technical details
€650.00
€650.00 €650.00
2% discount with credit card

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ProductTwister F4-650

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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
datasheet
Audio System ItalyTwister F6-380
Audio System Italy-Twister F6-380-6-Kanal Verstärker-masori-kaufen
Audio System Italy-Twister F4-400-4-Kanal Verstärker-masori-kaufen
Audio System ItalyTwister F4-400
Audio System Italy-Twister F4-650-4-Kanal Verstärker-masori-kaufen
€650.00
€650.00 €650.00

More power than Twister F4-650 here!

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"Increase your driving pleasure manifold with the Twister F4-650, a 4-channel amplifier from Audio System Italy. Experience impressive audio performance through the combination of aesthetics and power that you expect from the F-series. With innovative features like HyperDrive and Zero Feedback circuitry, this amplifier delivers a distortion-free and fluid musical experience that makes you feel like you are right there at a live performance or in the recording studio. Discover a listening experience that will excite you."

Technical Data Amplifier

  • Frequency response: 5 - 25000Hz
  • Input sensitivity: 5 - 0.2V
  • Filter: 12dB /Oct.
  • Low pass frequency: 45 - 300Hz
  • High-pass frequency: 20 - 150 Hz
  • Connection terminal size: 20mm²
  • Safety recommendation: 110A
  • Dimensions 550 x 50 x 220 mm
  • Power @ 4Ω 14.4v 0.1% THD: 4 x 170 w
  • Power @ 2Ω 14.4v 0.1% THD: 4 x 260 w
  • Power @ 4Ω 14.4v 1% THD: 2 x 520 w Bridge

datasheet

Open data sheet

Frequently Asked Questions about Twister F4-650

What power does the Twister F4-650 Amplifier deliver under different impedances?

The Twister F4-650 from Audio System Italy shows impressive performance at different impedances. At 4Ω, it delivers 4 x 170 Watts at 14.4 Volts and 0.1% THD. If you reduce the impedance to 2Ω, the power increases to an impressive 4 x 260 Watts. For high-power applications, the amplifier also offers the option of bridged operation, where it delivers 2 x 520 Watts at 4Ω with 14.4 Volts, although at 1% THD. These values highlight the flexibility and immense power of the device in various audio setups.

How does the Zero Feedback circuit affect the sound quality of the Twister F4-650?

The Zero Feedback circuit of the Twister F4-650 significantly reduces signal interference, leading to clearer and more precise sound reproduction. Compared to conventional amplifiers that use feedback to stabilize performance, this innovation specifically targets distortions that could cloud the sound image. Especially at high volumes or with complex musical pieces, the difference is clearly audible: details are reproduced faithfully, and the distortion-free listening experience is maintained even in challenging acoustic environments. This provides you with a sound that resembles a live performance.

How does the HyperDrive mode affect the performance of the audio amplifier?

The HyperDrive mode of the Twister F4-650 significantly enhances the efficiency and dynamics of the amplifier. Through optimized power consumption and output, the speed at which the device responds to sound dynamics is increased. High-frequency and low-frequency tones benefit from powerful and simultaneous reproduction, making the sound overall appear more vibrant. This mode is particularly useful for music genres that require quick changes in tonal dynamics. The combination of precise sound control and powerful performance enhancement results in an impressively energetic listening experience.

What frequency ranges can be processed with the Audio System Italy F4-650 Amplifier?

The Audio System Italy Twister F4-650 Amplifier covers a wide playback range from 5 Hz to 25000 Hz. For targeted sound optimization, a low-pass filter with an adjustable frequency from 45 Hz to 300 Hz and a high-pass filter in the range of 20 Hz to 150 Hz are available. These filters allow you to ensure that the speakers only process the frequencies they can reproduce optimally. The precise tuning of these filters can significantly improve sound quality and efficiency of audio playback, resulting in a full, balanced sound image.

How do I optimally install the Twister F4-650 Amplifier in a car?

To optimally install the Twister F4-650 Amplifier in a vehicle, you should consider its dimensions of 550 x 50 x 220 mm. Ensure that the installation location in the vehicle has adequate ventilation to avoid overheating. Use connections that are compatible with the 20mm² terminals of the amplifier to ensure optimal performance. Note that a fuse rated at 110A is recommended, which ensures a stable and safe power supply. These measures will help you fully exploit the sound advantages of the amplifier and avoid unwanted technical complications.

What are the recommended settings for the input sensitivity on the F4-650 Amplifier?

When adjusting the input sensitivity of the Twister F4-650 Amplifier, you should work within the range of 5 V to 0.2 V. This range allows you to adjust the sensitivity of the amplifier to the signal strength of your audio source. It is particularly important to make this adjustment in such a way that the highest possible preamplifier output is achieved without signal-related distortions. With correct adjustment, you will achieve a clear, comprehensive sound quality that is reproduced without interference, which is especially crucial for high-quality audio playback.

Why is the playback range of 5 - 25000 Hz significant for the Twister F4-650?

The playback range of 5 - 25000 Hz of the Twister F4-650 is crucial for the high sound fidelity of the amplifier. This range encompasses both the lowest tones and ultrasonic high frequencies that are beyond human hearing. The ability to reproduce such a comprehensive range of sounds ensures a particularly balanced and seamless audio experience. Especially when listening to audiophile music or valuing an authentic sound reproduction, this generous frequency range will fully meet your expectations. Even the smallest details come to life.

What role does the 110A fuse recommendation play for the Twister F4-650 amplifier?

The 110A fuse recommendation for the Twister F4-650 has significant safety implications. Since the amplifier demands high power, a fuse is necessary to protect against current spikes while also providing a constant power supply at peak performance. This fuse specification prevents electrical damage to the device and minimizes the risk of operational disruptions. A properly matched fuse ensures that the amplifier can safely and optimally deliver its performance, which is essential for an uninterrupted listening experience.

How does the terminal size of 20mm² ensure better audio performance?

The 20mm² terminals of the Twister F4-650 are crucial for transmitting high currents with minimal resistance. A larger terminal allows for thicker cables, which in turn improves conductivity and minimizes voltage fluctuations. This optimal power supply supports the amplifier's performance and leads to more precise audio output, as the signal strength remains consistent at high volumes. By using this terminal size for connections, you maximize cable capacity and ensure that the total power the amplifier can deliver actually reaches your speakers.

Can the frequency filters of the Twister F4-650 affect sound quality?

The frequency filters of the Twister F4-650 are essential for fine-tuning the sound profile and can significantly influence sound quality. With a low-pass filter range of 45 Hz to 300 Hz and a high-pass filter range of 20 Hz to 150 Hz, you have the ability to adjust the frequency response to your preferences and control any resonances. By utilizing these filtering options, you can appropriately separate the wavelengths and ensure clear, balanced audio playback. This allows for a tailored adjustment for any speaker system, optimizing overall audio support.

Manufacturer information/responsible person

fortissimo
Dietmar Carle
Bahnhofstr. 23
88048 Friedrichshafen Kluftern
Germany

Contact: didi@fortissimo.de"

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