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Reference RA40 - 440 Watts 4-ch. amplifier


REFERENCE series RA40 is a 4-channel amplifier. Provides a power output of 4 x 75 Watts with 4-ohm stereo and 2 x 220 Watts in 4 ohm mono bridge-connection.

- Built-in variable 40-125 Hz switchable low pass filter for subwoofers.
- Built-in/switchable variable 20-150 Hz high pass filter that can be used as a subsonic filter or high-pass filter for front systems.
- Grand bass 0-18 dB. - Phase shift control.
- High level input with automatic start.
- RMS output power at 13,8 volt DC feed. Max 0,1% distorsion @ 20 Hz - 20 kHz

This product is discontinued

Number of channels4
Amplifier classAB
Output power in 2 ohm4 x 110 W RMS
Output power in 4 ohm4 x 75 W RMS
Mono bridge mode 4 ohm2 x 220 W RMS
Damping factor> 200
S/N ratio, A-weighted> 100 dB
Frequency range10 Hz - 50 kHz
Input sensitivity0,2 - 7 V
Input impedance> 10 kohm
Input impedance, high level330 ohm
Filters channel A & BHP: 20-150 Hz
Filters channel C & DHP: 20-150 Hz, LP: 40-125 Hz
Phase control for subwoofers0-180 degrees (Ch. C&D)
Low level outputNo
Grand bass filter0-18 dB240 Hz (Ch. C&D)
Remote bass level controlNo
Remote phase shift controlNo
High level input with auto startYes
Integrated fanNo
Power consumption (idle)0,9 A
Power consumption (max)50 A
Rec. power cableMinimum 4AWG / 21 mm2
Fuses2 x 25 A
Dimension (W x D x H)359 x 245 x 59 mm (14,1 x 9,65 x 2,33 ")
Weight3,8 kg ( 8,4 lb)
EAN Bar code7331644027706

Article number(s)

 Car Audio amplifiers
1 channel mono amplifiers
2 channel stereo amplifiers
Multi channel amplifiers
Accessories for amplifiers
Discontinued amplifier models
 Car Audio speakers
2 & 3-way systems
DLS Scandinavia
Coaxial speakers
Midrange speakers
Active subwoofer boxes
 Marine/Outdoor Speaker
Marine speakers
Marine amplifiers
Outdoor Speaker
Connectors, fuse holders etc.
Speaker grilles
Bass ports

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