X-Eight HS Specifications
block diagram
X-Eight HS console
description
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.
features
• 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
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 proprietary-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
dimensions
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.
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.
specifications
frequency response
THD
noise
X-Eight HS
modules
master module block HS
+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
crosstalk
channel mute
>80dB
channel fader attenuation >90dB
phase shift
inputs
outputs
channel routing
>80dB
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
insert
nominal output level
input channel eq
send
50 ohms ground-compensated on TRS jack
return
>10k ohms balanced on TRS jack
+4dBu
max level +26dBu balanced into >1k ohms
group module HS
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
high-pass filter
-12dB/octave
Q=.7 on boost
stereo input module
freq range 20Hz–400Hz
separate on-switches for eq and high-pass filter
output features
aux and matrix eq
high freq +/- 15dB shelf at 12kHz
low-mid freq +/- 15dB bell, freq range 100Hz–2kHz, Q=1.5
high-mid freq +/- 15dB bell, freq range 400Hz–8kHz, 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
channel metering
master metering
mono input module
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
signal generator
construction
rear view X-Eight HS
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
dimensions and weights
warranty
© 2000
Crest Audio Inc.
see dimension-drawing
five-years
Crest Audio specification literature is available
in downloadable PDF format at our website
www.crestaudio.com
v. 1.0
1/24/00
Crest Audio reserves the right to make
improvements in manufacturing or design
which may affect specification.
block diagram
X-Eight HS console
description
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.
features
• 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
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 proprietary-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
dimensions
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.
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.
specifications
frequency response
THD
noise
X-Eight HS
modules
master module block HS
+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
crosstalk
channel mute
>80dB
channel fader attenuation >90dB
phase shift
inputs
outputs
channel routing
>80dB
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
insert
nominal output level
input channel eq
send
50 ohms ground-compensated on TRS jack
return
>10k ohms balanced on TRS jack
+4dBu
max level +26dBu balanced into >1k ohms
group module HS
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
high-pass filter
-12dB/octave
Q=.7 on boost
stereo input module
freq range 20Hz–400Hz
separate on-switches for eq and high-pass filter
output features
aux and matrix eq
high freq +/- 15dB shelf at 12kHz
low-mid freq +/- 15dB bell, freq range 100Hz–2kHz, Q=1.5
high-mid freq +/- 15dB bell, freq range 400Hz–8kHz, 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
channel metering
master metering
mono input module
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
signal generator
construction
rear view X-Eight HS
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
dimensions and weights
warranty
© 2000
Crest Audio Inc.
see dimension-drawing
five-years
Crest Audio specification literature is available
in downloadable PDF format at our website
www.crestaudio.com
v. 1.0
1/24/00
Crest Audio reserves the right to make
improvements in manufacturing or design
which may affect specification.
block diagram
X-Eight HS console
description
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.
features
• 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
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 proprietary-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
dimensions
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.
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.
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