dls ra25 사용자 설명서

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

Number of channels

2

3

Working mode

AB

AB

RMS power out, 4 ohm

2 x 70 W

2 x 70 W + 1 x 265 W

RMS power out, 2 ohm

2 x 110 W

2 x 100 W + 1 x 365 W

RMS power out,  4 ohm bridged

1 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

Filter slope

12 dB/octave

12 dB/octave

Pre amp configuration on Front channel:
Filter high pass

20 - 150 Hz*

45 - 125 Hz*

* can be switched in/out

Pre amp configuration onRA30 sub channel:
Filter lowpass

-

40 - 125 Hz

Fixed 25 Hz subsonic filter

-

Yes*

Phase shift 0- 180 degrees contiously

-

Yes

Grand bass adjustable gain @ 40 Hz

-

0 - +18 dB

Remote bass level and phase control

-

Yes

* can be switched in/out

Protection

current & thermal

current & thermal

Max cable size, DC input

7 AWG, 10 mm

2

4 AWG, 21 mm

2

Max cable size, front speakers

7 AWG, 10 mm

2

10 AWG, 6 mm

2

Max cable size, sub output

7 AWG, 10 mm

2

Power consumption:
Idle

0,6 A

0,9 A

Maximum

25 A

70 A

Fuse

25 A

2 x 35 A

Dimensions HxWxD(mm)

59x247x245

59x385x245

Dimensions (inch)

2,33x9,72x9,65

2,33x15,15x9,65

Weight

2,6  kg (5,7 lbs)

 4,4  kg (9,7 lbs)

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.
The sub channel on RA30 can handle 2 ohm loads,
for example two 4 ohm subwoofers in parallel.

In bridge mode connection an amplifier sees a four
ohm speaker as a two ohm load.