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.
11
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
RMS power out, 4 ohm
2 x 130 W
4 x 75 W
RMS power out, 2 ohm
2 x 220 W
4 x 110 W
RMS power out, 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 re/- 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).
