High power in compact dimensions… The F4 are complete amplifiers, with an array of practical integrated-devices to manage the most sophisticated types of audio system. Made in two sections, they feature separate inputs to be used either together or on their own; each section is fitted with ultra-flexible electronic crossovers, designed to interpret the configuration requirements of both multi-channel systems as well as multi-amplified ones.
F4 600 allows bridged mono connection as well as all Twister amplifiers, it supplies 2x460 Watt RMS @ 4ohm.
| GPS | Global Protection System
The GPS includes a series of devices dedicated to the global protection of the amplifier and loudspeakers. Short-circuits and overheating, DC output and turn-on transient “Bump” are monitored constantly. This system controls the rotation of the cooling fan, adjusting its speed according to the temperature of the heat sink. Linked directly to the GPS, it guarantees a more effective disposal of the heat generated.
| THERMOSPEED | Active Forced-cooling System
This system controls the rotation of the cooling fan, adjusting its speed according to the temperature of the heat-sink. Linked directly to the GPS, it guarantees a more effective disposal of the heat generated.
| E.NO.DE. | Electromagnetics Noise Destroyer
The input circuiting of the Twisters is immune to noise generated by the vehicle’s electrical system. ENODE eliminates any ground-loops, enhancing the speed of installation and guaranteeing impeccable sound reproduction.
RMS Stereo power @4ohm Watt 145 x4
RMS Stereo power @2ohm Watt 230 x4
Dynamic Stereo power @2ohm Watt 320 x4
RMS Mono bridged power @4ohm Watt 460 x2
Min. Stereo impedance load Ohm 2
Min. Mono bridged impedance load Ohm 4
Damping factor @4ohm - >300
Input sensitivity range mV 0,174,3
Input impedance Kohm >11
Crossover [quantity] type -  HP or LP
Crossover cut frequency range Hz 45300
Crossover slope dB/oct. 12
Frequency response -3dB Hz 10165.000
THD distortion @1KHz - 90% 4ohm nom. power % <0,03
DIM distortion - 90% 4ohm nom. power % <0,015
Signal/Noise ratio - 10Hz22KHz - 90% nom. power dB 104
Signal/Noise ratio "A" weighted - 10Hz22KHz - 90% nom. power dB 106
Power supply range Volt 10,516
Minimum cable size for 5 mt. long - Metric sq. mm 35
Minimum cable size for 5 mt. long - US AWG 2
Max current requirement Stereo @4ohm A 63
Max current requirement Mono bridged @4ohm A 110
Idle current A 1,32
Standby current mA 2
Fuses A 3x 40A
Weight Kgs 4,6
Dimensions L x W x H mm 220x550x50