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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.

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. 

The amplifier has a built-in fan

in the bottom plate. Mount the amplifier on
spacers to allow the air to circulate inside the
amplifier.

Check all locations and placements carefully
before making any cuts, drilling any holes or ma-
king any connections.

This is the best direction to
mount the amplifier in order
to get the best cooling.

RA10

RA10

1 x 300 Watt RMS in 4 ohm load
1 x 5000 Watt RMS in 2 ohm load
1 x 780 Watt RMS in 1 ohm load

All above RMS power ratings at 13,8 Volt DC

RA10 is a mono amplifier for subwoofer use only.
The frequency range is limited to frequencies
between 10 Hz and 125 Hz.

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.

Summary of Contents for RA10

Page 1: ...rranty 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 Informatio...

Page 2: ...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 The amplifier has a built in fan in the bottom plate Mount the amplifier on spacers to allow the air to circulate inside...

Page 3: ... 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 Four splicers to connect speaker cables to high level input cable if high level input is used Wire ties Insulating grommet or insulating tube Stereo head unit 3 Routing wires RA10 Profess...

Page 4: ...e a separate cable Sometimes a small disturbance may enter the amplifier coming from the remote voltage through the built in remote wire and into the RCA cable Thus we recommend to use a separate remote wire and run the RCA lead separate from remote wire power cables and speaker cables Insert the cable directly into the amplifier terminal If there is no remote voltage available from the ste reo yo...

Page 5: ...High Low level input switch Hi level auto start switch 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 Avoid placing the RCA cable close to speaker cables power cables and remote control cable Connect to RCA input sockets Both in...

Page 6: ...ume with a center frequency of 40 HZ You can select the amplification between 0 dB no amplification and 18 dB full amplification The phase control can be set continuously from 0 180 degrees This is very useful when you want to adjust the bass sound for best front stage image Start on 0 and turn the control slowly clockwise until you experience that the bass sound is coming from the front If you do...

Page 7: ... parallel to get more power from the amplifier 7 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 The typical setting is around 60 80 Hz...

Page 8: ...8 Battery 12V RA10 FM1 107 3 Subwoofer 4 ohm Subwoofer 4 ohm Fuse 100 A RCA out Remote Remote bass level and phase control Wiring example of RA 10 with two subwoofers ...

Page 9: ...ti meter The cables must not have a connection to earth THE AMPLIFIER TURNS OFF AFTER 10 30 MINU TES The amplifier is overheating due to inadequate venti lation Check mounting position is free from obstruction Do this 1 Move the amplifier to a place with better ventil ation 2 Make sure the internal fan is working and that the amplifier is installed in a way that allows air to circulate freely insi...

Page 10: ...t battery Tap the wire on to the terminal of the battery and observe the movement of the cone The cone should move outwards when the wire touches the battery and inwards when the battery is removed If it is the other way around the speaker has been connected backwards and it must be removed and connected correctly If your system also has a subwoofer connected through a passive 6 or 12 dB crossover...

Page 11: ...evel 10 kohm Input impedance high level 330 ohm High level input with auto start Yes Input sensitivity 0 5 8V Filter slope LP filter 12 dB octave Filter slope subsonic filter 18 dB octave Pre amp configuration Filter lowpass 40 125 Hz Fixed 25 Hz subsonic filter Yes Phase shift 0 180 degrees continously Yes Grand bass adjustable gain 40 Hz 0 18 dB Remote bass level and phase control Yes can be swi...

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 ...

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