ADS R12s Owner's Manual

analog and digital systems

A10s.2
A12s.2
R10s
R12s

owner's manual

table of contents

introduction 1
cautions 1
about this manual 1
keep listening, but be safe! 1
features 1
placement 2
warnings and tips 2
wiring 2
power handling 2
enclosure recommendations 3
A series subwoofer specifications 4
R series subwoofer specifications 5
warranty information 6

introduction

Congratulations and thank you for purchasing an a/d/s/ mobile subwoofer. The A and R-Series
subwoofers are built using the finest materials and are engineered to provide years of musical enjoyment
if installed and operated correctly. For best results and optimal warranty coverage, we recommend having
your a/d/s/ mobile subwoofer(s) installed by an authorized a/d/s/ mobile specialty dealer.

Be sure to save your sales receipt. It is your best record of the date of purchase, which is required for
warranty service.

Read and follow all cautions, warnings and notes.

cautions

Do not attempt to service you're a/d/s/ mobile subwoofer as it has no user serviceable parts. Never
connect or disconnect your subwoofers when the system is powered up. Always exercise care when
handling the subwoofer in or out of its enclosure.
Note: R-series aluminum cones may bend or distort if handled carelessly, affecting their performance.

about this manual

These subwoofers can be used with factory or aftermarket loudspeakers to extend the bass response of
the system by an octave or more. They are designed to be powered by an amplifier with a minimum of
25 watts of power. They are not intended to be powered by a head unit.

keep listening, but be safe!

Sustained listening to loud music over 100dB has been shown to cause permanent hearing damage. Systems
using a/d/s/ components are capable of achieving volume levels which substantially exceed this level. When
operating your system for sustained periods at high volume, be sure to use hearing protection to prevent long­term exposure. We want you to be able to enjoy the music for many more years.

features

• Rugged die-cast baskets

• Precision-tuned NBR surrounds

• High-power motor structures with vented pole pieces

• Heavy gauge, spring-loaded wire terminals

• A-Series uses rigid co-polymer cones

• R-Series utilizes drawn aluminum cones for even more accurate low-frequency reproduction

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placement

Unlike high frequency sound, our ears have difficulty locating the source of deep bass sounds.
Consequently, you have a fair amount of flexibility in where you place the subwoofer in your vehicle.
Typically the subwoofer is mounted in the rear of the vehicle, either in the trunk, hatchback, or rear cargo
area. For proper performance the port must not be closer than 3" from any walls, this will cause the
performance to suffer. The enclosure can be mounted vertically or horizontally.

warnings and tips

Always disconnect the battery ground wire before doing any work on your vehicle. Reconnect the cable
only after the installation is complete and the wiring has been checked to make sure that there are no
problems. If your radio features a code type security system, be sure you know the code before
disconnecting the battery!

wiring

The terminals used on these models are color coded to indicate polarity.
Red is (+), and Black is (-). These terminals are designed to accept bare wire
up to 12 AWG stranded cable, or gold-plated speaker pins.

R-series woofers have dual 4 ohm voice coils. These may be used
individually on separate amplifier channels, or they may be wired in series
or parallel. Connecting both voice coils of a single woofer in parallel
creates the equivalent of a single 2 ohm woofer. Connecting the two voice
coils in series will create the equivalent of a single 8 ohm woofer. When
using a pair of woofers on a pair of unbridged amplifier channels it is best
to parallel the two voice coils of each woofer, and connect each woofer
to its own dedicated amplifier channel. This will give you a 2 ohm load for
each channel. When using a single woofer per pair of amplifier channels,
connect each voice coil to its own channel instead of bridging the channels
as you would for a single voice coil woofer. This will result in the best
damping factor and assure tight, controlled low-frequency performance.

power handling

Your a/d/s/ subwoofer has been designed to handle the demands of high power, high energy music
reproduction. Despite their rugged construction, it is still possible to damage your speakers if they are
used improperly. An inappropriately designed or constructed enclosure can allow improper cone motion,
possibly causing physical damage to the voice-coil or suspension. Excessive drive power for extended
periods can cause thermal damage to the voice coil or lead-in wires. Too much low frequency energy may
cause the woofer cone to reach it's mechanical limits and "bottom" against the structure. In general, you
will hear distortion as a warning before any damage occurs. If you hear distortion, immediately reduce
the drive level to the point where the sound retains it' clarity. This will assure that you do not damage your
woofers.

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