Specifications

ManualsBrandsDLS ManualsAutomotiveReference series

How to install and

operate the DLS

Reference series

car audio mono

amplifier RA10.

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.

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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…………………………….. 2

Installation…………………….……. 2

Tools and materials needed………. 3

Amplifier installation kit………….... 3

Routing Wires…………………….... 3

Wiring:

Power connection..……………..…. 4

Input and controls………………..... 5

Input wiring..................................... 5

Input level control.......................... 6

Grand Bass..................………….... 6

Phase control................................. 6

Crossovers..................................... 6

RA10 speaker wiring:

One subwoofer…...……………….... 7

Two subwoofers...…………………... 7

Four subwoofers............................... 7

Installation with two subwoofers:

Wiring example.............................. .. 8

Testing……………………………….. 9

Troubleshooting……………………... 9

Professional tips…………………….. 10

Specifications………………………... 11

Summary of content (12 pages)

PAGE 1
Contents How to install and operate the DLS Reference series car audio mono amplifier RA10. Features…………………………….. Installation…………………….……. Tools and materials needed………. Amplifier installation kit………….... Routing Wires…………………….... Wiring: Power connection..……………..…. Input and controls………………..... Input wiring..................................... Input level control.......................... Grand Bass..................………….... Phase control................................. Crossovers.......................
PAGE 2
RA10 The amplifier include RCA inputs High Level input Variable low pass crossover Subsonic filter Grand bass feature 0 - +18 dB Phase shift continously variable 0-180 degr. Remote bass level and phase shift control Remote turn on / off Automatic remote turn on/ off on high level input without connecting any remote wire Built-in cooling fan Electronic protection circuitry against short-circuit, DC offset and thermal overload.
PAGE 3
RA10 Tools and material needed 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 paint for a good ground connection Grease to protect the ground connection from oxidation Routing wires Stereo head unit Material: Speaker wire: minimum 12 AWG = 4 mm2 for subwoofer connection Sheet metal screws for mounting the amplifier to the amplifier board and the amplifie
PAGE 4
RA10 Wiring Power connections Power terminal ( +12V) Remote terminal ( REM ) Connect the fuse holder as close to the vehicle battery + as possible, using 4 AWG = 21 mm2 or heavier cable. Use ring crimp terminal cable to connect to battery +. Apply silicon grease to the fuse to prevent corrosion. Use a 100 Amp fuse for cable 4 AWG (21 mm2). RA10 accepts 4 AWG (21 mm2) in the power terminal.
PAGE 5
Input and controls Input Wiring Inputs may be low level from the RCA output of the car stereo, or high level from the car stereo speaker output. Low level = RCA is to prefer for the best sound quality. Low level input Use a pair of shielded stereo audio cables with RCA type jack. Most trunk-mount amplifiers need a 20 feet RCA cable ( appr 5 – 6 meters). Most under the seat installations require 12 feet ( 2 – 3 meters) RCA cables.
PAGE 6
RA10 Crossovers Input Level control The input level control, 8V – 0,5 V, matches the output of your radio to GAIN the input of the amplifier. After installation is complete, make sure the input of the amplifier is turned 8V 0,5V down all the way ( counterclockwise at 8V ). Play a tape or CD, make sure all bass or treble settings or equalizer are flat, and turn the volume of the radio up until you just start to hear distortion. Turn the volume control down just a bit.
PAGE 7
RA10 Speaker wiring RA10 RA10 is a mono amplifier made for use with subwoofers only. The amplifier has two output connectors. These are internally connected in parallel and are doubled for easier connection when you have more than one subwoofer. It is not possible to connect in bridge mode between the speaker terminals.
PAGE 8
RA10 Wiring example of RA 10 with two subwoofers Fuse 100 A Battery 12V Subwoofer 4 ohm Subwoofer 4 ohm RCA out Remote FM1 8 107,3 Remote bass level and phase control
PAGE 9
RA10 Testing Troubleshooting Before you finish the installation, you should do the following tests to make sure the wiring is correct and everything is operating properly. If problems occour during the installation, or later, this guide might help you to find out whats´s wrong. Reconnect Battery When wiring is complete, reconnect the battery negative terminal. Test power wiring 1. 2. Turn on the head unit but do not turn up the volume. The amplifier power light should come on.
PAGE 10
RA10 Professional Tip: Professional Tip: NOISE PROBLEMS SPEAKER POLARITY CHECK. WHINING NOISE VARYING WITH ENGINE REVOLUTIONS: All speakers in a car audio system should be connected in phase (the same polarity). All speaker cones must move in the same direction. Out of phase speakers will cause a lack of bass, and a poor stereo soundstage. Do this: 1. Rewire the power supply (12 V) to source unit direct from battery. 2. Rewire ground wire from source unit to clean position on chassis. 3.
PAGE 11
RA10 Specifications DLS Reference RA10 Number of channels Working mode Power output at 13,8 Volt, max 0,1 % THD Power output in 4 ohm Power output in 2 ohm Power output in 1 ohm THD @1 W Signal to noise ratio, A-weighted Damping factor Frequency response +/- 3 dB Input impedance, low level Input impedance, high level High level input with auto start Input sensitivity Filter slope LP-filter Filter slope subsonic filter 1 AB 300 W 500 W 780 W < 0,1% >100 dB >200 10 Hz - 125 Hz >10 kohm 330 ohm Yes 0,5 - 8
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.