Peavey AQ 12 Operating Manual page 12

Disconnecting AC Power to the AQ™12
We recommend that the Power switch (3) be used to turn the unit off first, and then the AC power cord can be
removed, this minimizes stress to the power amplifiers and the transducers from turn-off transients. The pow-
er switch has an arc suppression capacitor to help during turn-off, and tends to make a clean disconnect from
the AC power, while the power cord IEC connector can make intermittent contact before finally becoming fully
disconnected, e.g., as when wiggling the cord.
EQ Presets
There are a number of Factory defined Presets quickly available to the user via the Preset Selector Switch (13).
Here is a listing of those Presets:
VOICE
ACOUSTIC
MONITOR
PRGM MUSIC
DJ
LIVE MUSIC
Here is a brief description of what each Preset does to the nominally flat response of the speaker system:
VOICE Preset
Filters out the low and high frequencies outside the normal voice bandwidth to reduce booming or sibilance, and
provides a mild presence boost to help with intelligibility.
ACOUSTIC Preset
This Preset provides a nominally flat frequency response, within the limits of the systems drivers and nearby
acoustic environment.
MONITOR Preset
Mild low-shelf cut to account for the floor location, mid-bass EQ to counter the floor bounce notch, and mild
presence boost for vocals, very slight roll-off of extreme high frequencies to minimize hash.
PRGM MUSIC Preset
This Preset is intended for use with recorded music, with a mild bass-boost, a slight upper mid-bass emphasis for
punch, and some high frequency boost with subsequent extreme high frequency taper off. Dynamic bass boost
employed.
DJ Preset
Provides maximum bass boost, with some EQ for punch and presence, with some high frequency boost with
subsequent extreme high frequency taper off.
Dynamic bass boost employed.
LIVE MUSIC Preset
Very mild bass boost, with mild EQ for punch and presence, with some high frequency boost with subsequent
slight extreme high frequency taper off.
Dynamic bass boost employed.