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Audio System Italy  |  Barcode: 7427135689383

Audio System Twister F4.650

Regular price 649,00€
Tax included Shipping calculated at checkout.


Free shipping from 49€

Shipping

✓ Free shipping from 49€ within Germany and from 99€ to the EU.

✓ Delivery times vary depending on the product and can be found on the product page, usually 1 - 3 working days for stock items, international shipping times vary, usually 6 - 10 working days.

✓ In most cases, shipping is carried out by DHL, UPS and GLS.

✓ Depending on the product and location, items can also be shipped with other providers.

✓ Tracking will be sent by email after the shipment has been processed.


Normal shipping route

✓ 1 - 40Kg = DHL, UPS and GLS

✓ 40.1 - maximum kg = forwarding agency

✓ Bulky goods = freight forwarder

✓ Customs shipments = DHL, GLS or freight forwarder

Parcel collection

✓ Collection takes place regularly from Monday to Friday, orders received by 3 p.m. are usually disposed of on the same day for goods in stock and transported directly to the parcel center.

5% discount for prepayment

Receive a 5% pre-payment discount. The discount is automatically deducted in the shopping cart/checkout and is valid for all products. Vouchers or discount codes may be excluded or already combined.

Wiring wizard & port computer

Use our wiring wizard for simple wiring of speakers and subwoofers! The correct connection is important for your amplifier! Low-impedance operation can damage the amplifier! The data sheet shows you which connection the respective amplifier is designed for!

Our port calculator shows you which tuning your enclosure has! The net volume is always particularly important here; calculate the pure chamber of the subwoofer beforehand to arrive at the correct result. The net volume is calculated minus all displacements and is important when designing the enclosure.

Downloads

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Name: Fortissimo

Address: Bahnhofstr. 23 88048 Friedrichshafen Kluftern

Email: fortissimo@t-online.de

Website: https://fortissimo-shop.de/

European Manufacturer: Yes


The Audio System Italy Twister F4.650 is a powerful 4-channel amplifier designed for high-end car audio systems that require high output power, control, and high-quality music reproduction. The time-honored Twister series combines analog amplifier technology designed for sound quality with substantial power reserves.

With 4 x 170 watts RMS at 4 ohms, the F4.650 is ideal for high-power front systems, active speaker setups, or sophisticated multi-way systems. At an impedance of 2 ohms, the output power increases to 4 x 260 watts RMS, allowing even high-power low-midrange drivers and subwoofer systems to be driven with ease.

In addition, the amplifier can be used in bridge mode. In this mode, it delivers 2 x 520 watts RMS at 4 ohms, so the Twister F4.650 can also be used with powerful woofers or subwoofers, for example.

Integrated high-pass and low-pass filters are available to adapt to different speaker configurations. The high-pass filter can be adjusted between 20 and 150 Hz, while the low-pass filter offers a control range from 45 to 300 Hz. With its wide frequency range of 5 to 25,000 Hz, the amplifier is designed for both low-frequency and broadband applications.

 

Technical Specifications

  • Manufacturer: Audio System Italy
  • Series: Twister
  • Model: F4.650
  • Amplifier Type: 4-Channel Car Hi-Fi Amplifier
  • Amplifier class: Class A/B
  • Channels: 4
  • Output power at 4 ohms: 4 x 170 watts RMS
  • Output power at 2 ohms: 4 x 260 watts RMS
  • Output power (bridged at 4 ohms): 2 x 520 watts RMS
  • Measured voltage for power specifications: 14.4 volts
  • THD at 4 x 170 watts / 4 ohms: 0.1%
  • THD at 4 x 260 watts / 2 ohms: 0.1%
  • THD at 2 x 520 watts / 4 ohms bridged: 1%
  • Frequency range: 5 – 25,000 Hz
  • Input sensitivity: 0.2–5 volts
  • High-pass filter (HPF): 20–150 Hz
  • Low-pass filter (LPF): 45–300 Hz
  • Filter slope: 12 dB/octave
  • Power connection: 4 AWG / approx. 20 mm²
  • Recommended external fuse rating: 110 A
  • Dimensions (L x H x W): 550 x 50 x 220 mm
  • Weight: approx. 4.6 kg
  • Bridge operation possible: Yes
  • 2-ohm stereo operation: Yes

Special Features

  • High-performance 4-channel amplifier from Audio System Italy's Twister series
  • Analog Class A/B Amplifier Technology
  • Up to 4 x 260 watts RMS at 2 ohms
  • Powerful 2 x 520 watts RMS in bridged mode
  • Very low distortion levels
  • Wide frequency range up to 25 kHz
  • Adjustable High-Pass and Low-Pass Filters
  • Suitable for high-performance front systems and active car audio setups
  • Can also be used with kick basses and subwoofers in bridge mode
  • High-quality component selection with a focus on linearity and minimal thermal drift
  • High power reserves for demanding sound-quality installations

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