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Reference RA50 - 4 x 70 W + 1 x 265 W


REFERENCE series RA50 is a 5-channel amplifier rated at 4 x 70 Watts + 1 x 265 Watts. The amplifier is 2 ohm stable on all channels.

- Built-in variable 40-125 Hz switchable low pass filter as well as subsonic filter for subwoofers.
- Built-in filters that allows active crossover to a 2-way system or a mid bass speaker in a 3-way system.
- Grand bass 0-18 dB
- Phase shift control.
- High level input with automatic start.
- RMS output power @ 13, 8 volt DC feed with max max 0,1 % distortion, 20 Hz - 20 kHz.
- The DC input accepts up to 21 sq mm cable / 4AWG

This product is discontinued

Number of channels5
Amplifier classAB
Output power in 2 ohm4 x 110 W RMS
Output power in 4 ohm4 x 70 W RMS
Mono bridge mode 4 ohm2 x 220 W RMS
Mono sub channel 2 ohm365 W RMS
Mono sub channel 4 ohm265 W RMS
Damping factor>200
S/N ratio, A-weighted>100 dB
Frequency range10 Hz - 50 kHz
Input sensitivity0, 5 - 8 V
Input impedance> 10 kohm
Input impedance, high level330 ohm
Filters channel A & BHP: 50-140 Hz, LP: 250/2,5 kHz - 700/7 kHz (x1, x10 switch)
Filters channel C & DHP: 50/250/2,5 kHz - 140/700/7 kHz (x1, x5, x50 switch
Filters channel ELP 40 - 125 Hz, Subsonic 25 Hz
Phase control for subwoofers0-180 degrees variable
Low level outputNo
Grand bass filter0 - +18 dB @40 Hz
Remote bass level controlYes
Remote phase shift controlYes
High level input with auto startYes
Integrated fanNo
Power consumption (idle)1,2 A
Power consumption (max)90 A
Rec. power cableMinimum 4AWG / 21 mm2
Dimension (W x D x H)479 x 245 x 59 mm (18,85 x 9,65 x 2,33 inch)
Weight5,5 kg ( 12,1 lb)
EAN Bar code7331644027805

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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