Control descriptions – Cerwin-Vega CLASSIC Series Manual User Manual

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CONTROL DESCRIPTIONS

ATTENTION! Each subwoofer has speaker-level and line-level input

connections; choose only one option for hook-up. DO NOT USE

BOTH INPUT CONNECTIONS AT THE SAME TIME!
The following (numbered) controls are located on the subwoofer’s rear

panel, as shown in Figure 1.

LINE-LEVEL INPUT: Stereo line-level inputs to subwoofer. Use

these RCA jacks to connect audio signals from line-level outputs from

an A/V receiver/preamp/processor. (see figure 2 for hook-up)
SPEAKER-LEVEL INPUT: Stereo speaker-level inputs to subwoofer.

Use these terminals when line-level connections are not available from

A/V receiver/preamp/processor.

(see figure 3 for hook-up)
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 response from 40 to 120

Hz. The subwoofer’s response will begin rolling off above the set

frequency. Set the CROSSOVER FREQUENCY to the lower value

listed in the main speaker manual.
SPEAKER-LEVEL OUTPUT: Audio loop of stereo speaker-level

inputs. When using speaker-level inputs, use these terminals to loop

(i.e., continue) speaker connections to drive a pair of main speakers

with a full-range signal.
LFE INPUT: Mono line level input to subwoofer. Use this RCA

jack to connect audio signals from line level Low Frequency Effects

output of an AV Receiver / Preamp / Processor. This input bypasses

the adjustable low pass fi lter to accommodate the Bass management

features of your AV Receiver / Pre Amp / Processor.

features of your AV Receiver / Pre Amp / Processor

PHASE: Compensates for having subwoofer and main speakers

in different locations. Ideally, subwoofer sound should reach the

listening position at the same time as sound from the main speakers.

However, if the distance from the listening position to the subwoofer,

and from the listening position to the main speakers differ, the sound

from each will reach your ears at different times. The PHASE control

delays the signal 180 degrees, so the subwoofer output will blend into

that of 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” or

“Auto” mode when signal is present. Glows red in “OFF” mode if

receiving AC power, or in “Auto” mode if audio signal is not present.
POWER: Two-position power switch. In “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 20 minutes. In the “OFF”

mode, power is shut off to the amplifier.
VOLTAGE SELECTION: Factory set voltage selector. Do not

attempt to change voltage without Customer Service support.
POWER CORD RECEPTACLE: Connect IEC cord to this receptacle.

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.

Figure 1. Connection panel for the Classic Series Subwoofers.