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Reference RA20 - 440 W power amplifier

  Product Reviews

REFERENCE series RA20 is a two-channel amplifier. Provides a power output of 2 x 130 Watts with 4-ohm stereo and 440 Watts with 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 per channel @ 13,8 volts, 20 Hz - 20 kHz , < 0,1% distortion.

This amplifier is discontinued.

Number of channels2
Amplifier classAB
Output power in 2 ohm2 x 200 W
Output power in 4 ohm2 x 130 W
Mono bridge mode 4 ohm440 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
High pass filter20 - 150 Hz
Low pass filter40 - 125 Hz
Phase control for subwoofers0-180 degrees cont. variable
Low level outputNo
Grand bass filter0-18 dB @ 40 Hz
Remote bass level controlNo
Remote phase shift controlNo
High level input with auto startYes
Integrated fanNo
Power consumption (idle)0,6 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 inch)
Weight3,8 kg ( 8,4 lb)

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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