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DLS RA25 How To Install And Operate

Reference series car audio amplifiers
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See also: Owner's Manual , Manual
How to install and
operate the DLS
Reference series
car audio amplifiers
RA25 & RA30.
Welcome!
This owners manual is written in easy english and
uses a lot of drawings to simply the installation and
use of the above amplifiers.
Your DLS amplifiers must be installed correctly in
order to work well. This manual will show you how
to install the amplifier like a pro. Please read the
entire manual before beginning the installation.
Install the amplifier yourself if you feel confident with
our instructions and if you have the proper tools.
However if you feel unsure, turn over the installa-
tion job to someone better suited to it.
Warranty Service
This amplifier is covered by warranty, depending
on the conditions in the country where it is sold. If
the amplifier is returned for service, please include
the original dated receipt with the product.
Technical Assistance
For technical assistance ask the shop where the
product was sold or the distributor in your very coun-
try.
You can always phone the DLS Helpdesk in Sweden
+ 46 31 84 00 60 or send an e-mail to info@dls.se.
Information can also be found on our WEB-site
www.dls.se
Contents
Features...................................
Installation................................
Routing Wires............................
Power connection.......................
Input and controls.......................
Input wiring.....................................
Input level control..........................
Grand Bass..................................
Phase control.................................
Crossovers.....................................
Front speakers............................
Bridge connection........................
Testing......................................
Troubleshooting........................... 9
Professional tips..........................
Specifications.............................. 11
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Summary of Contents for DLS RA25

  • Page 1: Table Of Contents

    You can always phone the DLS Helpdesk in Sweden + 46 31 84 00 60 or send an e-mail to info@dls.se. Information can also be found on our WEB-site www.dls.se...

  • Page 2: Features

    Variable low pass crossover (not RA25) 1 x 220 Watt RMS in bridge mode (4 ohm load) Variable high pass crossover Grand bass feature 0 - +18 dB (not RA25) RA30 Phase shift continously variabel 0-180 degr. 2 x 70 Watt RMS in 4 ohm...

  • Page 3: Tools And Materials Needed

    RA25 & RA30 Tools and material needed Routing wires Tools: Flat and Phillips screwdrivers Wire cutter Wire stripper Electric drill with drills Crimping tool Digital multimeter or test lamp Wire brush, scraper or a piece of an abrasive sheet to remove...

  • Page 4: Wiring

    Power (Green) blade type fuses on RA30, or The protect light ( red ) comes on one 25 A on RA25. when the amplifier shuts down from Protect overheating, or a short circuit ( spea- (Red)

  • Page 5: Input And Controls

    Hi and Low input. When using High Level input: High Level Input for ch 1 & 2 on RA25 and RA30 Push in the button to position Connect left and right speaker wires coming from ”High Level”...

  • Page 6: Input Level Control

    (HP) and low pass filters (LP). The highpass matches the output of your radio to GAIN filter on RA25 can also be used as a subsonic filter. the input of the amplifier. After instal- The slope of all filters are 12 dB / octave.

  • Page 7: Ra25 Speaker Wiring: Front Speakers

    RA25 amplifiers, one for each channel. reproduction switch IN the HP-filter. The typical setting is then around 60 – 80 Hz. If you want to use the RA25 for bridge mode connection of a subwoofer, you must use an external passive lowpass crossover.

  • Page 8: Ra30 Speaker Wiring: Two Speakers + Subwoofer

    RA30 Speaker wiring RA30 RA30 is a 3-channel stereo amplifier. It is normally used to connect one pair of front/rear fullrange speakers, and one or more subwoofers connected to the mono sub channel. Two fullrange speakers and one subwoofer to Filter settings channel 3 &...

  • Page 9: Testing

    4. Check the amplifier protection fuses. Are these broken change to new ones with the same value. If short circuiting continues, contact your local DLS dealer. A fault may exist in the amplifier. Test power wiring 5. To start the amplifier requires a remote voltage of 9-15 volt.

  • Page 10: Professional Tips

    If noise remains regardless of cable position, try to use so called Quasi-balanced signal NOTE! Tweeters can not be tested this way, cables. DLS PRO-cables are double check the connections instead. Quasibalanced. Professional Tip: Professional Tip:...

  • Page 11: Specifications

    RA25 & RA30 Specifications DLS CLASSIC RA25 RA30 Number of channels Working mode Power output at 13,8 Volt, 20 Hz - 20 kHz, max 0,1 % THD, all channels driven. RMS power out, 4 ohm 2 x 70 W 2 x 70 W + 1 x 265 W...
  • Page 12 DLS Svenska AB P.O. Box 13029 SE-40251 Göteborg, Sweden Tel: +46 31 840060 Fax: +46 31 844021 E-mail: info@dls.se www.dls.se...

This manual is also suitable for:

Ra30

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