EarthQuake FF-12 - Manual (Page 5)

Product Overview
Class "A/B" Amp
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400 Watts Class "A/B" high efficiency power amplifier
12 dB/Octave variable filter from 40 Hz to 180 Hz
Automatic signal detection circuitry. When "ON", it
automatically turns on the subwoofer when an audio
signal is detected. It also shuts the subwoofer off after 30
minutes if no signal is detected
High level (speaker) audio inputs
Low level (RCA) audio inputs
Full range speaker outputs that can be used to power up
other full range speakers in the system
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Signal detection circuitry.
W h e n " O N " , i t
a u t o m a t i c a l l y
shuts off the amplifier in
30 minutes if music is not
detected.
0-180° Phase switch for
precision bass response
control. Va r i a b l e 1 2 d B p e r
octave, low pass filter.
R a n g e 4 0 - 1 8 0 H z
Recommended general
setting at 2 o'clock.
115 / 230V power
c o n n e c t o r w i t h
built-in fuse for
max protection.
Low level (RCA)
a u d i o i n p u t ,
in high pass
mode @ 100Hz.
The 100Hz high pass
output is the perfect
source to feed a center
channel amp.
F u l l r a n g e s p e a k e r
outputs. Connect to
power up other full range
speakers in the audio
system.
High level (speaker)
audio input. In an existing
s y s t e m , y o u c a n
run the speaker wires
(L&R) into the amplifier
for audio input.
Volume Control to
balance the subwoofer
output to the system’s
main speaker/amplifier.
RED: Stand by
GREEN: ON
NOTE:
Do not use both LOW
LEVEL (RCA) and HIGH
L E V E L ( S P E A K E R )
connections at the
same time!
AUTO
Min Max
Volume
FF12