Cerwin-Vega V-12S User's Manual | Page 3

Cerwin-Vega Portable Speaker User's Manual - V-12S.
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ENGLISH

PRIOR TO INSTALLATION

Carefully unpack your subwoofer, saving the box and all of the packing material; at 

some point you may need to transport, ship, or move your subwoofer. Before 
continuing with the installation, please make sure the subwoofer is unplugged and 
the power switch is turned “OFF.”

WARNING:  Severe damage may result from

improperly selected voltage.  Set voltage selection switch,     to the proper AC voltage.
INSTALLATION

Please read the following to determine which installation procedure is best for your 

audio/video system. For additional hook-up connections, you may want to refer to 
your A/V receiver, processor, preamplifier, or amplifier’s manual.

NOTE:  Be sure to read

and observe the “Safety Instructions” on preceding page before starting the installation.
CONTROL DESCRIPTIONS

The following controls are located on the subwoofer’s rear panel, as shown (back cover).

Attention!  The Cerwin-Vega V-10S/12S have LFE, LINE-LEVEL, and SPEAKER-

LEVEL input connections; choose one option only for hook-up. Do not hook up

more than one option!

LFE INPUT: Mono “low frequency effects”connection. Use this input if 
receiver/preamp/processor has a dedicated LFE or subwoofer OUT. Refer to 
the owner’s manual provided by your receiver/preamp/processor manufacturer.
(see figure 1, back cover for hook-up)

LINE-LEVEL INPUT: Stereo low level input to subwoofer. Connect to “LINE-OUT”,
“MAIN-OUT or PREAMP-OUT”, of your receiver/preamp/processor using a dual RCA 
patchcord (not supplied). Refer to the owner’s manual provided by your receiver/ 
preamp/processor manufacturer. (see figure 2, back cover for hook-up)

SPEAKER-LEVEL INPUT: Stereo high-level inputs to subwoofer. Use these terminals 
when line-level connections are not available from A/V receiver/preamp/processor.
Connect to SPEAKER outputs on receiver using high quality speaker wire (16-gauge 
or heavier). (see figure 3, back cover for hook-up)

SPEAKER-LEVEL OUTPUT: Audio loop of stereo high-level (SPEAKER-LEVEL) 
inputs     . Use to loop (continue) signal to speaker connections to the left 
and right main speakers.

VOLUME CONTROL: Controls volume level of subwoofer. Use to balance the output 
of the subwoofer with the main speaker output.

CROSSOVER FREQUENCY: The crossover control allows you to adjust the upper 
limit of the subwoofer’s frequency response from 40 to 120 Hz. The subwoofer’s 
response will begin rolling off above the set frequency. Set the CROSSOVER FRE-
QUENCY to the lower value listed in the main speaker manual.* (Note: Crossover 
control does not function when LFE input is used.)

PHASE: This switch allows you to compensate for having the subwoofer 
in a different location than the main speakers. This control allows the signal to be 
delayed 180 degrees so the output of the subwoofer will blend in with the 
main speakers. Slide the PHASE switch to “180”. At the listening position, listen to 
the midbass output. If it sounds weak, set PHASE back to “0.”

POWER LED: Power indicator lamp. Glows green in “ON”mode if audio signal is 
present. Glows red in both  “OFF” mode and  “ON ” mode if receiving  AC power,
and if audio signal is not present after approximately 30 minutes.

POWER: Two-position power switch. In the “ON”mode, the  subwoofer’s 
amplifier is automatically activated if an audio signal is present and will automatically 
become inactive when there is no audio signal present after approximately 30 
minutes. In the “OFF” mode, power is shut off to the amplifier.

VOLTAGE SELECTION: User-switchable voltage selection for use with 115 or 230 
volt AC.

Attention:  All subwoofer models come from the factory preset to 

115 volts. To select a different voltage, use a flat head screwdriver to reposition 
the switch to the desired voltage.

WARNING:  Severe damage may result from 

improperly selected voltage.  Make sure you know the voltage requirement of 

the country you are in before attempting to connect this subwoofer to AC 

power.

POWER CORD RECEPTACLE: Connect IEC cord to this receptacle (supplied 
with the V subwoofer). If the cord supplied does not fit an available AC outlet,
purchase the correct AC cord from your audio dealer or an electrical supply store.

REPLACEABLE FUSE: Protects system from overload, replace with fuse rating as 
indicated on amplifier panel at fuse location. The fuse holder is located at the AC 
receptacle. Gently pry open to access the fuse.

PLACEMENT

Your V Series powered subwoofer produces low frequencies which are omnidirectional.

As a result, placement requirements for your subwoofer are flexible and subject to your
listening room’s acoustic characteristics. To determine the best position for your
subwoofer, start by positioning it along the same wall, or plane, as your main speakers.
Experiment with various locations until you find the location that sounds best to you.
Note: Typically, your powered subwoofer will sound louder when placed in close
proximity to walls or corners.

Caution!  Cerwin-Vega V-10S and V-12S speakers are intended for FLOOR 

PLACEMENT ONLY!  Do not place heavy objects of any type, such as televisions on

top of any Cerwin-Vega speaker unless otherwise recommended by Cerwin-Vega!  

V Series speakers are for residential applications only.

I n s t a l l a t i o n

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* Refer to the owner’s manual provided by your main speaker manufacturer to 
determine your main speaker’s low end frequency response.

SPECIFICATIONS

V-12S

V-10S

Frequency Response

30 Hz - 150 Hz

32 Hz - 150 Hz

(+/- 3 dB)

Woofer

12” EX™ Woofer

10” EX™ Woofer

Amplifier Power 

150 Watts RMS

100 Watts RMS

(@0,05% THD)

300 Watts Peak

200 Watts Peak

Amplifier Features

Variable gain and 

Variable gain and

X-O freq.; phase select; 

X-O freq.; phase select;

LFE in; line level in; speaker 

LFE in; line level in; speaker

level in/out; 110/220AC

level in/out; 110/220AC

Protection

AC Fuse & Thermal

AC Fuse & Thermal

Video Shielding

No

No

Weight

44 lb. / 20kg.

34 lb. / 15.6kg.

Dimensions
(H x W x D)
(inches)

17 3⁄4 x 135⁄8 x 19 3⁄8

16 1⁄8 x 111⁄2 x 17 3⁄8

(cm)

45.1 x 34.6 x 49.2

41x 29.2 x 44.1

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TROUBLESHOOTING

SYMPTOM
Bass sounds distorted

Distortion with volume

control near minimum

Distortion on music

peaks or sound

effects 

Buzz, hum, or crackle

when connecting

wires
Buzz or hum when

system is on

No sound after

listening at high levels

CAUSE
Subwoofer amplifier has

reached maximum output
Tone controls are set too high

Defective receiver or

preamplifier; shorted speaker

wires
Dynamic soundtrack (e.g.,

explosions)

Connecting wires with power

on causes transient signal

spikes
Grounding problem or ground

loop

Amplifier’s thermal protection

is on

SOLUTION
Turn down volume control

on subwoofer or lower

receiver level
Set bass flat; use controls

sparingly
Repair defective receiver,

preamplifier or replace

speaker wires
Turn down volume control to

lower overall range; use a

more powerful

receiver/amplifier
Connect wires only when

audio system power is off

Check receiver or

preamplifier manual for

ground loop elimination
Turn down volume control

and allow amplifier to cool;

sound should resume 

automatically

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