Crest audio V-12 User Manual
• front-of-house console with secondary-applications—a full-facility
monitor console capable of generating up to 28 monitor-mixes
• four-band full-parametric eq on both mono and stereo input modules—HF
and LF frequency bands are switchable between bell- and shelving-curves
• sweepable 18db high-pass filters on both mono and stereo input modules
• twelve VCA masters—dual THAT- VCA elements used throughout
• sixteen aux mixes,with eight switchable between mono and stereo
operation—aux controls include on/off and pre/post fader switching
• stereo solo-system includes last-pressed, momentary,and cumulative
(default) solo switch operation—plus normal, input priority and
input solo-in-place operating modes
• solo system may be switched between stereo AFL and PFL source modes
• solo-isolate switch is available for use when multiple consoles
are linked together—master
SOLO CLEAR switch is provided
• direct-output system optimized for use in live-performance recording,
or for use in expanded-operation as a monitor console
• discrete bus assignment to groups, left/right and mono outputs
• true LCR panning available on mono input channels
• five-segment level meters on mono and stereo input modules
(separate left and right meters on stereo input modules) with variable-
intensity
SIGNAL PRESENT indicator and multiple sample-point PEAK indicator
• full-time pre-fader signal-monitoring of analog groups,
aux, and matrix pre-level output controls
• output meter bridge provided as standard
• all balanced inputs and outputs utilize gold-plated connectors,
including both balanced insert-send and -return connectors
• fully-balanced internal busing to minimize or eliminate
most types of external interference
• internally-illuminated switches used throughout, with
separate dimmer controls for switches and external lighting system
• group swap-controls re-map group/aux/matrix operations
to accommodate use as a front-of-house, monitor, or matrix mixer
• eight-mono and four-stereo matrix outputs,plus four
ALTERNATE OUTPUTS
which may be operated in mono or stereo
description
features
When your professional live-sound reputation is on the line,
Crest Audio’s V12 becomes your secret-weapon: delivering
bullet-proof quality and reliability in a superlative front-of-house
or monitor console. V12 includes those features most-desired by
touring and permanent-installation engineers. Full-parametric eq
is provided on all input channels. A wealth of outputs are available
for unexpected situations. Gold-plated connectors and balanced-circuitry are provided, both internally and externally, for long-term
interference-free operation
sound fundamentals
The sonic performance of the V12 is sure to please discriminating
sound engineers and audiences alike, even when the console is
pushed hard in demanding applications. In order to maintain
high-headroom with low-noise,V12 circuits exclusively employ the
latest-generation of integrated circuits
(
operated on +/-20 volt rails
)
and studio-grade proprietar y-design microphone pre-amplifiers.
Dual-VCA elements are the best available from THAT Corporation,
offering improved performance over single-element VCA designs.
Phase-shift has received special attention in the design, revealing less
than five-degrees of phase-shift on lower frequencies and less than
18-degrees on upper frequencies—better performance than that
observed in significantly more-expensive consoles.
wide range of configurations
V12 consoles are supplied with either 24, 32, 40, and 48 mono input
channels, plus four full-featured stereo mic/line input channels. Basic
configurations for all consoles include Master and Group modules,
plus four stereo-input modules that may be used as effect-returns.
All other inputs may be individually-ordered as mono-mic/line or
stereo-mic/line modules. An optional expansion-system enables the
addition of up to two 28-input side cars. Up to three V12 chassis
may also be linked together for single-console operation.
muting systems
Three-types of mute systems provide the appropriate mute
system for any application. Microprocessor based systems may be
disabled for total manual mute operation. The V12 microprocessor
mute system was co-developed with JL Cooper, insuring utmost
reliability and industry-standard operation methods.
V12 console
built to defy murphy’s law
V12 consoles are constructed to endure the rigors of the road.
A segmented mother-board system is employed, thoroughly shockmounted from the multi-walled chassis. Despite being extremely-rigid,
the V12 console is amazingly light. Gold-plated interconnects and connectors are used throughout, delivering impeccable performance in
even the most harsh environments.
also available without microprocessor system
v.1.0 1
/24/00
specifications
Crest Audio specification literature is available
in downloadable PDF format at our website
www.crestaudio.com
©
2000 Crest Audio Inc.
Crest Audio reserves the right to make
improvements in manufacturing or design
which may affect specification.
V12
+0/-0.5dB 20Hz–20kHz ref 1kHz—any input to any output
any output <.01%
THD 20Hz–20kHz @ +15dBu out
mic ein better-than -129dBu 20Hz–20kHz—150ohm source, 60dB gain
channel mute >90dB channel routing >80dB
channel fader attenuation >90dB aux send attenuation >80dB
< +10/-20 degrees,
20Hz–20kHz—mic-in to main-out
mic-in
XLR 4k ohm balanced—max voltage gain to left/right balanced out = 92dB
line-in TRS >10k ohms balanced with dedicated balanced line buffer
left/right/mono—group, aux, matrix—monitor-out
all 100 ohms balanced
headphones to drive > eight-ohms
send 50 ohms balanced on
TRS jack
return >10k ohms balanced on TRS jack
+4dBu max level
+28dBu balanced into >1k ohms
high freq +/- 15dB frequency range
1kHz–20kHz Q variable 3.0–0.7 switchable to shelving
high-mid freq +/- 15dB frequency range 400Hz–8kHz Q variable 3.0–0.7
low-mid freq +/- 15dB frequency range
100Hz–2kHz Q variable 3.0–0.7
low freq +/- 15dB frequency range 40Hz–800Hz Q variable 3.0–0.7 switchable to shelving
eight-segment LED ladder with VU-type response—top red-LED warns of impending overload
anywhere within the channel—lowest green-LED shows signal-present—source is globally-switchable b/w pre- and post-fader
21 mechanical
VU-type meters, with solid-state meter illumination (eight LED- ladders used on 42 and 50 frame sizes)
two-banks of eight meters—switchable to show either groups 1–8
aux 1–8, aux 9–16, matrix 1–8, and matrix 9–16
left, right, and mono
(center) meters and stereo solo meters
dual-color
LED power supply status-indicators in meterbridge
littlites can be made to flash with intercom-call
variable sine wave—frequency 20Hz–20kHz pink-noise generator
chassis is powder-coated
12-gauge aluminum with internal bracing
modules are powder-coated
18-gauge galvanized-steel with baked-epoxy screening
see dimension-drawing
five-years
frequency response
THD
noise
crosstalk
phase shift
inputs
outputs
insert
nominal output level
input channel eq
channel metering
master metering
signal generators
construction
dimensions and weights
warranty
modules
master-1 module
group output module
main output module
mono input module
V12 console rear view
master-2 module
stereo input module
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