DLS REFERENCE RA20 Bedienungsanleitung
DLS
Autoradio - CD Player
REFERENCE RA20
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How to install and
operate the DLS
Reference series
car audio amplifiers
RA20 & RA40.
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…………………………….. 2
Installation…………………….……. 2
Tools and materials needed………. 3
Amplifier installation kit………….... 3
Routing Wires…………………….... 3
Wiring:
Power and Outputs……………..…. 4
Input and controls………………..... 5
Input wiring..................................... 5
Input level control.......................... 6
Grand Bass..................………….... 6
Phase control................................. 6
Crossovers..................................... 6
RA20 speaker wiring:
Front speakers…...……………….... 7
Subwoofer…………………………... 7
RA40 speaker wiring:
Four speakers…………………….... 8
Two speakers + bridged subwoofer. 8
Two speakers in bridge mode......... 9
Testing……………………………….. 9
Troubleshooting……………………... 9
Professional tips…………………….. 10
Specifications………………………... 11
RA20
RA40
All models include
î‚ŠRCA inputs
î‚ŠHigh Level input
î‚ŠContinuos variable low pass and/or high-
pass crossovers
î‚ŠGrand bass feature 0 - +18 dB
î‚ŠPhase shift continously variabel 0-180 degr.
î‚ŠRemote turn on / off
î‚ŠAutomatic remote turn on/ off on high level
input without connecting any remote wire
î‚ŠElectronic protection circuitry against
short-circuit, DC offset and thermal overload.
Bridgeable design to direct full power to
one or two speakers.
Installation
Before you begin installation
Before you begin you need to read the manual, to have
some tools, cables and other material available. There
is one such list of material on the following page.
Amplifier location
Important
Allow air circulation around the amplifier.
2
Disconnect Battery
Before starting the instal-
lation, always disconnect
the negative terminal of
the battery.
The DLS Reference series of amplifiers have a
compact design that allows great flexibility in
mounting. You can mount it under a seat or in the
trunk.
When you select a location, do remember that the
amplifier generates a lot of heat.
Choose a location where air can circulate freely
around the amplifier. Do not cover the amplifier
with carpets or hide behind trim panels.
Do not mount the amplifier in an inverted or upside
down position.
Check all locations and placements carefully
before making any cuts, drilling any holes or ma-
king any connections.
This is the best way to
mount the amplifier to get
the best cooling.
RA20 & RA40
DLS logo on amplifier cooling flange
The DLS logo on top of the amplifier is attached
with two hex. screws. The logo can be removed
and twisted 90 or 180 degrees, and then screwed
back in wanted position. The logo can be mounted
in four different ways to match your installation.
Tools and material needed
Tools:
î‚Šî‚Š
î‚Šî‚Š
î‚ŠFlat and Phillips screwdrivers
î‚Šî‚Š
î‚Šî‚Š
î‚ŠWire cutter
î‚Šî‚Š
î‚Šî‚Š
î‚ŠWire stripper
î‚Šî‚Š
î‚Šî‚Š
î‚ŠElectric drill with drills
î‚Šî‚Š
î‚Šî‚Š
î‚ŠCrimping tool
î‚Šî‚Š
î‚Šî‚Š
î‚ŠDigital multimeter or test lamp
î‚Šî‚Š
î‚Šî‚Š
î‚ŠWire brush, scraper or a piece
of an abrasive sheet to remove
paint for a good ground connection
î‚ŠGrease to protect the ground
connection from oxidation
Material:
î‚ŠSpeaker wire: minimum
12 AWG = 4 mm2 for subwoofers
13 – 16 AWG = 1,5-2,5 mm2 for other
speakers
î‚ŠSheet metal screws for mounting the
amplifier to the amplifier board and the
amplifier board to the car + some extra
for fuse holder, amplifier ground etc.
î‚Šî‚Š
î‚Šî‚Š
î‚ŠElectrical insulation tape
½ inch thick plywood or particle board for
the amplifier to be mounted upon.
Amplifier installation kit:
If available,buy an amplifier installation kit. It
contains normally all you need. This is what you
have to buy if you buy the items separately
î‚Š20- 25 feet = 6- 7.5 meter power cable,
minimum AWG 5 = 16 mm2 or heavier
î‚Š1 pc of fuseholder to install close to the
car battery + fuse 50 Ampere.
î‚Š20 feet of AWG 15 = 1,5 mm2 wire for
remote turn on / off cable from radio.
î‚ŠRCA-cable for input from radio.
- 20 feet or 5 meter for trunk installations
-12 feet or 2 – 3 meter for under seat
installations
Two ring crimp terminals –one
for connection to the battery plus and one
for the amplifier ground connection.
î‚ŠFour to eight splicers to connect speaker
cables to high level input cable, if high level
input is used.
î‚ŠWire ties
î‚ŠInsulating grommet or insulating tube
Stereo
head unit
3
Professional Tip:
If amplifier installation kits are available with diffe-
rent size of power cable, chose the most heavy
power cable to improve sound quality and to allow
more amplifiers to be installed now or later.
Use minimum AWG 5 = 16 mm2 cable, but if
possible buy AWG 4 = PL 21 mm2 cable for best
performance.
The ground cable must have the same size.
RA20 & RA40
Routing wires
Produktspezifikationen
| Marke: | DLS |
| Kategorie: | Autoradio - CD Player |
| Modell: | REFERENCE RA20 |
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