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Twister F4D/400
Technical Highlights
- 4x100W RMS@4Ohm, 2x150W RMS@2Ohm, 2x300W RMS@4Ohm.
- Audio bandwidth up to 40 kHz, high-resolution certificate.
- Low pass 30-150Hz/24dB, bass boost 0-12dB, phase 0-180°.
- More technical details
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Twister F4D/400 by Audio System Italy
The Twister F4D/400 is a 4-channel amplifier from Audio System Italy that combines exquisite sound quality and sophisticated technology in an impressively compact package. With its high switching frequency, steep filtering, and highly tolerant components, it delivers sound that far exceeds the expectations of a Class D amplifier. Thanks to its extended audio bandwidth up to 40 kHz, it has also been awarded the coveted High-Resolution certificate. The ability to bridge channel pairs also allows for flexible and powerful performance.
Technical Data
- 4-channel Class D amplifier
- 4x100 Watt RMS @4Ohm
- 2x150 Watt RMS @2Ohm
- 2x300 Watt RMS @4Ohm
- LOW PASS 30Hz - 150Hz / 24dB
- BASS BOOST 0 +12 dB 40-160Hz, continuously variable phase shift 0-180°
- High-level input with auto turn-on
- Sub remote controller included
- L x H x W: 300 x 148 x 52 mm

