Revel sub30 User Guide

❸

CONTOUR

: This control provides access to two different overall

system responses: 

Music

or 

Film

. Selecting 

Music

does not alter

the subwoofer's response. Selecting 

Film

provides a tailored

boost at the lowest frequencies that many find desirable for film
sound reproduction. The response contour can be selected
either manually by changing the switch position to 

Music

or

Film

, or automatically by selecting 

External Trigger

to accept a

trigger voltage from an external device, such as a multi-channel
controller, applied to the 

TRIGGER Music/Film

input terminals.

❹

LOW PASS/HIGH PASS

: The

LOW PASS

filter has 

In/Out

and

24/48 dB

slope switches, and variable controls for 

Frequency

,

Phase

, and 

Level

. The 

HIGH PASS

filter is always on and has a

variable 

Frequency

control and 

12/24 dB

slope switch. Use the

filter controls to precisely set a two-way crossover point from 30
to 80 Hz, with symmetrical 24 dB slopes or asymmetrical 24/12
or 48/12 dB slopes, and low-pass phase shift from 0 to 180
degrees. Use the 

LOW PASS Level

control to set the subwoofer

system’s output level. When using a multi-channel controller, 
the 

LOW PASS Level

control is normally set to the “0” position. 

❺

INPUT

: Use stereo XLR (balanced) connectors or RCA (unbal-

anced) jacks to connect from preamplifier outputs, or front 
outputs of a multi-channel decoder. Both inputs are 0 dBv
(nominal)/+20 dBv (maximum). The XLR input is pin 2 high. 

❻

AUX OUTPUT

: Use stereo XLR (balanced) connectors or RCA

(unbalanced) jacks to loop input audio signals to additional
REVEL ULTIMA SUB 30 subwoofers (if present). Both out-
puts are 0 dBv (nominal)/+20 dBv (maximum). The XLR out-
put is pin 2 high. 

❼

HIGH PASS OUTPUT

: Use stereo XLR (balanced) connectors or

RCA (unbalanced) jacks for (high-pass) connection to the main
amplifier’s left input. Both outputs are 0 dBv (nominal)/
+20 dBv (maximum). The XLR output is pin 2 high. 

❽

POWER ON MODE

: Select 

Auto

to turn on automatic power

when the 

POWER

switch is set to 

ON

. Internal sense circuits will

continually detect the presence of audio signals and fully turn
on the power supply when needed. After some time, when
audio is no longer present, the same circuits will instruct the
power supply to enter the standby mode to conserve energy. 
Or select 

12V Trigger

to turn on/off power via a remote 12 Vdc

supply. A 12-volt trigger voltage is available from some multi-
channel audio/video controllers, as well as from integrated
remote control systems.