Hifonics COLOSSUS Classic four channel audio amplifier delivers 1700 watts with Super A/B Class™ technology that features Ultra-Fi™ MOSFET outputs that are selected for both balance and output power.
|22 × 10.75 × 4.5 in
|Item Weight (lbs)
|Item Length (in)
|Item Width (in)
|Item Height (in)
Super A/B Class™
|Amp Total Channels
|Amp Max Power (watts)
|Amp Power @ 2 Ohms (ch x watts)
4 x 425
|Amp Power @ 4 Ohms (ch x watts)
4 x 225
|Amp Mono Bridged @ 4 Ohms (ch x watts)
2 x 850
Variable Electronic 12dB Per Octave
|Amp Variable High Pass Crossover 12dB per Octave
|Amp Variable Low Pass Crossover 12dB per Octave
|Amp Tone Control / Parametric EQ
Built-in Bass Control
|Amp Bass Boost
|Amp Variable Voltage
|Amp Frequency Response
|Amp Total Harmonic Distortion (THD)
|Amp Speaker Level Audio Inputs
|Amp Power Terminal 12v/GND
|Amp Speaker Terminal Wire Gauge
|Proposition 65 Notice
|WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
|Low Noise Preamplifier Circuit
Maximum low voltage signal from the source unit comes into the amplifier circuit with minimal distortion.
Nickel-plated RCA jacks create the most efficient High/Low Level audio connection and resist corrosion.
4 channel operation mode allows either stereo or mono bridged operation.
Variable electronic crossovers allow for complete control of the sound.
Control of amplifier output with on-board electronic crossover to tailor specific frequencies to speakers and subwoofers.
|Class / Topology
Super A/B Class proprietary designs use high-speed microprocessors with proprietary D/A conversion algorithms to efficiently control the current consumption. At very high listening levels, this unique hybrid of Super A/B Technology results in lower distortion, higher current efficiencies and less heat than conventional amplifier designs.
|Output Device Technology
Pro-Fi™ Output Device Technology: The Ultra-Fi™ MOSFET is designed for music production vs just electronics output power. It produces very musical high power with high efficiency for cooling and minimal distortion.
Heavy-duty aluminum alloy heat sink efficiently moves heat from the MOSFET for superior dissipation.
The dual coil Pulse Width Modulated power supply keeps voltage constant through the Ultra-Fi output devices.
High temperature impact resistant nickel plated connectors with allen head set screws which allow for secure termination of wire and creates an erosion resistant seal.
Secure molded connection terminal for all Power, Ground and Speaker connections. Angled for ease of access while creating a clean wire mangement profile.
|LED System Protection Circuitry Diagnostics
Monitor overload and speaker short protection with illuminated indicators on the amplifier end panel.