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Specifications
We follow a policy of continuous advancement in
development.
For this reason all or part of specifications & designs
may be changed without prior notice.
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DLS CLASSIC RA20 RA40
Number of channels 2 4
Working mode AB AB
Power output at 13,8 Volt, 20 Hz - 20 kHz, max 0,1 % THD
Power output, 4 ohm 2 x 130 W 4 x 75 W
Power output, 2 ohm 2 x 220 W 4 x 110 W
Power output, 4 ohm bridged 1 x 440 W 2 x 220 W
THD @1 W < 0,1% < 0,1%
Signal to noise ratio, A-weighted >100 dB >100 dB
Damping factor >200 >200
Frequency response +/- 0,5 dB 10 Hz - 50 kHz 10 Hz - 50 kHz
Input impedance, low level >10 kohm >10 kohm
Input impedance, high level 330 ohm 330 ohm
High level input with auto start Yes Yes
Input sensitivity 0,2 - 7V 0,2 - 7V
Pre amp configuration on Front channel:
Filter high pass 20 - 150 Hz* 20 - 150 Hz*
Filter low pass 40 - 125 Hz* No
Phase shift 0- 180 degrees contiously Yes No
Grand bass adjustable gain @ 40 Hz 0 - +18 dB No
Pre amp configuration on Rear channel:
Filter highpass No 20 - 150 Hz*
Filter lowpass No 40 - 125 Hz*
Phase shift 0- 180 degrees contiously No Yes
Grand bass adjustable gain @ 40 Hz No 0 - +18 dB
* can be switched in/out
Filter slope 12 dB/octave 12 dB/octave
Protection current & thermal current & thermal
Max cable size, DC input 4 AWG, 21 mm
2
4 AWG, 21 mm
2
Max cable size, speakers 5 AWG, 16 mm
2
7 AWG, 10 mm
2
Power consumption:
Idle 0,6 A 0,9 A
Maximum 50 A 50 A
Fuse 2 x 25 A 2 x 25 A
Dimensions HxWxD(mm) 59x359x245 59x359x245
Dimensions (inch) 2,33x14,1x9,65 2,33x14,1x9,65
Weight 3,8 kg (8,4 lbs) 4,0 kg (8,8 lbs)
RA20 & RA40
NOTE!
The amplifiers are two (2) ohm stable. In stereo
mode it´s possible to load the amplifier down to two
ohm on each channel.
In mono bridge mode it´s possible to load with one
four ohm fullrange speaker or subwoofer.
(In bridge mode the amplifier sees a four ohm
speaker as a two ohm load).
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