Crest audio X-EIGHT HS User Manual
wide range of configurations
X-Eight consoles are supplied with either 24, 32, 40, or 48 mono
input channels, plus four full-featured stereo line-input channels—
which can also serve as effect-returns. These standard configurations
include Master and Group modules—all other inputs may be
ordered as mono-mic/line or stereo-line, in four-channel blocks.
built to defy murphy’s law
X-Eight HS consoles are manufactured to the same exacting
quality-standards as all Crest Audio console products. Each input
channel has its own discrete vertically-mounted circuit board,
for greater impact resistance and serviceability. All circuit boards
employ plate-through double-sided glass epoxy construction
—providing greater strength and integrity. The console’s roadworthy external frame is fabricated from 14-gauge galvanized steel.
X-Series power supplies utilize amplifier-engineering technology to
deliver stable voltages and long-term reliability, and provide built-in
facilities for a redundant back-up supply—ensuring that the show
will always go on.
• four-band eq with sweepable mid-bands and high-pass filters on all inputs
• fader-reverse function optimizes operation
as a front-of-house or as a monitor-mix console
• direct output on all mono input channels
• five-segment LED level indication on all mono input-modules with variable
intensity
SIGNAL PRESENT indicator and multiple sample-point PEAK INDICATOR
• eight aux mixes, with aux
5/6 and aux 7/8 switchable to stereo operation
• stereo solo system features switchable AFL/PFL mode
and last-pressed functions, with master SOLO CLEAR switch
• discrete bus assignment to groups, left/right and mono outputs
• true
LCR panning available on mono input-channels
• separate ground-compensated insert sends and balanced returns on group,
auxiliary and primary outputs as well as on mono input-channels
• fully-balanced primary outputs and balanced mic- and line-inputs
• meter bridge as standard: thirteen mechanical meters with solid-state
illumination: eight groups, left,right, mono (center) and solo-left/solo-right
description
features
The X-Eight HS is a dual-function console, equipped for both
front-of-house and stage-monitor duties. Designed specifically for
live-performance, professional sound contracting, industrial, rental, and
installation applications, the X-Eight HS provides those features most
needed by front-of-house and monitor engineers. The X-Eight HS
includes identical four-band eq on all mono and stereo input channels, and auxiliary sends 5/6 and 7/8 may be switched between
mono or stereo operation. Signal monitoring is provided on all input
and output fader channels, assisting the operator in setting correct
gain structure throughout the console. Stereo full-facility input channels are used for effect-returns on all faders.Twelve-channels of fiveband eq are provided on the Aux and Matrix outputs, switchable to
the group, left, right, and mono outputs. A microprocessor-based
muting system is provided on both inputs and outputs, and may be
operated manually or in sequential-mode.
sound fundamentals
Even in the most demanding environments, the sonic performance
of the X-Eight HS is sure to please discriminating sound engineers
and audiences alike. The X-Eight’s circuitry delivers both extended
headroom and low-noise: exclusively employing the latest-generation
of integrated circuits and studio-grade proprietar y-design microphone pre-amplifiers.The X-Eight HS console has exceptional
phase-shift performance, exhibiting less than +/-30 degrees-of-shift
from input to output—significantly better results than most consoles,
regardless of price.
microprocessor-based muting system
The X-Eight HS’s straightforward microprocessor-based muting
system was co-developed with JL Cooper, and combines muting
flexibility with ease of operation. Eight manual-mute groups are
provided, each with a dedicated activation-switch, any number of
which may be activated at one-time.The system includes 128 MIDIbased sequential scene mutes that can work alone, or in conjunction
with the manual mute groups. Scene mutes can be controlled via
external MIDI signals, and each of the 128 mute scenes may be preset to issue a MIDI program-change command to an external device.
X-Eight HS console
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.
X-Eight HS
v.1.0 1/24/00
+0/-1dB 20Hz–20kHz ref 1kHz—any input to any output
any output <.01%
THD 20Hz–20kHz @ +15dBu out
mic ein better-than -128dBu 20Hz–20kHz—150ohm source, 60dB gain
bus output noise less-than -80dBu—output fader
@ 0dB, 24 channels routed
residual output noise less-than -90dBu—output fader at minimum
channel mute >80dB channel routing >80dB
channel fader attenuation >90dB aux send attenuation >75dB
< +/- 30 degrees,
20Hz–20kHz—mic-in to main-out
mic-in
XLR 4k ohm balanced—max voltage gain to left/right balanced out
=
98dB
line-in
TRS >10k ohms balanced
left/right/mono—group, aux, matrix—monitor-out
all 100 ohms balanced
headphones to drive > eight-ohms
send 50 ohms ground-compensated on TRS jack
return >10k ohms balanced on
TRS jack
+4dBu max level
+26dBu balanced into >1k ohms
high freq +/- 15dB shelf at
12kHz
high-mid freq +/- 15dB bell freq range 400Hz–8kHz Q=1.5
low-mid freq +/- 15dB bell freq range 80Hz–2kHz Q=1.5
low freq +/- 15dB bell-boost /shelf-cut freq center
80Hz Q=.7 on boost
high-pass filter -12dB/octave freq range
20Hz–400Hz
separate on-switches for eq and high-pass filter
aux and matrix eq high freq +/- 15dB shelf at
12kHz high-mid freq +/- 15dB bell, freq range 400Hz–8kHz, Q=1.5
low-mid freq +/- 15dB bell, freq range 100Hz–2kHz, Q=1.5 low freq: +/- 15dB bell,freq range 20Hz–400Hz, Q=1.5
eq switchable between aux and group or matrix and main outs
five-segment
LED ladder with VU-type response—displays pre-fader signal level
top red-
LED warns of impending overload anywhere within the channel lowest green-LED shows signal-present
thirteen mechanical
VU-type meters with LED-illumination
eight-meters showing group-outs
three-meters showing main-outs (left/right/mono), and two dedicated solo-meters
pink-noise generator can feed the talk-back section
chassis is powder-coated
14-gauge galvanized steel 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
output features
channel metering
master metering
signal generator
construction
dimensions and weights
warranty
Loading...