Amplifier Feature Descriptions

The Hifonics Colossus is capable of 4, 2 & 1 Ohms stereo per channel, or 4 & 2 Ohms mono bridged operation.

The input sensitivities for rated output powers are variable from 0.2 volt to 9 volts.

All crossovers are fully variable in their respective ranges. Crossover filter slopes are 24 dB/octave for mono filters.

A POWER LED indicates the powered up and turned on condition.

All HiFonics amplifiers feature a comprehensive diagnostic system, with speaker lead short circuit, thermal over load and amplifier DC faults indicated by the PROTECT LED’s. The Colossus features a new clipping led indicator that changes colors as the severity of the clipped signal increases.

CONTROL FEATURE DESCRIPTIONS

SUBSONIC: The variable Subsonic filter is fully adjustable from 15Hz to 35Hz.

LOW PASS FILTER: The low pass filter is fully adjustable from 35Hz to 250Hz.

PARAMETRIC BASS EQ:

BOOST: The bass boost is fully adjustable from 0dB to 10db.

BANDWIDTH: The bandwidth is fully adjustable from narrow to wide.

FREQUENCY: The frequency is fully adjustable from 30Hz to 100Hz.

BALANCED INPUT: Accepts balanced line inputs from 0.2 volts to 18 volts for an optional balanced line driver.

LINE INPUT: Accepts unbalanced RCA inputs from 0.2 volts to 9 volts.

LINE OUTPUT: The unbalanced RCA outputs are identical to the signal supplied to the amplifier.

LEVEL: The input level control allows you to match the amplifier input sensitivity to the output level of the RADIO/CD source from 0.2 Volts to 9 volts when using unbalanced (RCA) and 0.2 volts to 18 volts with the balanced input.

PHASE SHIFT: The Phase Shift is fully adjustable from 0 to 180 degrees.

SYSTEM DIAGNOSTICS: The amplifier has built-in monitoring devices and protection circuits that monitor all vital functions of the amplifier. The diagnostics light do not come on to indicate there is a failure, they come on when they detect an improper operation.

THERMAL: The amp has an internal temperature sensor that will automatically shut off the amp if it reaches dangerous temperature levels and the LED will be Amber in color.

DC PROTECT (Short Circuit): In the unlikely event the amp should internally fail, the amp will shut down to prevent a DC voltage output to the speakers or sub and the LED will be Red in color.

Clipping: While adjusting the amplifier the LED may light up Green indicating Pre-Clip, Amber indicating Soft-Clip or Red indicating Clip. These indicators give the user a chance to identify incorrect settings or high distortion before it is damaging to the equipment allowing them to correct the volume or settings.

REMOTE: The Colossus has a DIN cable remote level jacks labeled INPUT. The Remote Module plugs into the INPUT jack and allows you to adjust the Level Control.

INPUT

OUTPUT

BALANCED

LEVEL

PHASE

BOOST

BANDWIDTH

FREQ

HFR-G1

SUB

LPF

INPUT

REMOTE

SONIC

DIAGNOSTICS

RED - SHORT CIRCUIT

AMBER - THERMAL

RED - CLIP

AMBER - NEAR CLIP

0.2V

180

10dB

100Hz

35Hz

250Hz

GREEN - PRE-CLIP

PARAMETRIC EQ

+12V POWER GND	REM	+	L-CH	-	+ R-CH -
					BRIDGED