Crest Audio CENTURY SERIES LM - TECHNICAL Technical Data

C
E N T U R Y
T S
E C H N I C A L
FREQUENCY RESPONSE
+0.0, -0.5dB, 20Hz to 20 kHz (referenced to 1kHz)
TOTAL HARMONIC DISTORTION
Mic input to Group output
20Hz to 20 kHz at +15dBu
NOISE
(22Hz to 22kHz)
Mic EIN
Group Output Noise (20 ch routed)
CROSSTALK
(Measured at 1kHz)
Channel Mute
Channel Fader Attenuation
Channel Routing
INPUT/OUTPUT IMPEDANCES
Mic Input
Line Input
Outputs
INPUT/OUTPUT LEVELS
Mic Input Sensitivity
Line Input Sensitivity
Input Insertion Point Level
Output Insertion Point Level
Nominal Output Level
Maximum Balanced Output Level
Crest Consoles Engineering,
2.25"/57mm
The live monitor console shall be constructed in a modular fashion and be housed in a steel frame with molded plastic side panels. The console shall be black with white labeling and utilize XLR light-
ing device connectors. All microphone inputs shall be electronically balanced and accessed via 3-pin XLR connectors and have an EIN of -129 dBm. All line inputs shall be electronically balanced and
accessed via 1/4" TRS jacks. The insert points shall have discrete send and return connectors. Each input channel shall have: a +48 volt phantom power switch, a -15 dB mic pad switch, a 100Hz high
pass filter switch, a polarity reverse switch and 4-band (LF-40-800Hz, LMF-100Hz-2kHz, HMF-400Hz-8kHz, HF-1.5k-20kHz) sweepable EQ with selectable peak/shelve settings on the high and low con-
trols and an EQ In switch. Each input channel shall also have: a FET controlled (10 millisecond ramp) mute switch with LED, A dynamic signal present LED and peak LED, 4 scene mute switches (A-D)
each with LED, scene mute safe switch with LED and a 100mm long throw fader. Each input channel shall have output send controls appropriate to the specified model. Each bank of four rotary con-
trols shall have an associated pre switch which shall be internally selected to operate as pre/post EQ or pre/post Fader; this selection shall apply to all three pre switches on the input. Each of the send
controls shall be internally selectable to operate in one of three modes: follow its associated pre switch, always pre or always post. The console shall be available in 12 output or 20 output configura-
tions. Each output shall have a ten-segment LED array, three-band sweepable EQ, EQ-In switch, variable high-pass filter, polarity reverse, insert switch, talkback enable, dim, peak & dynamic signal pre-
sent LEDs, local mute and PFL. The mono outputs shall have mono EQ, the stereo outputs shall have stereo EQ; while the dual mono outputs shall have stereo EQ but with separate A/B EQ In switches.
The master section shall be contained within mono outputs 11 and 12 and shall contain: a talkback system, scene mute master controls, return master controls and two stereo local monitor controls,
connections for headphones, talkback mics, external oscillators as well as indicators for power, input and output PFL. The standard power supply shall be housed in a 14 ga. steel chassis that shall occu-
py two 19" rack spaces. The power supply shall have the ability to be daisy-chained to additional power supplies to provide a fail-safe operating environment. Connection of two or more power sup-
plies shall not require additional interface hardware other than the provided cable. The live monitor console shall be: the Crest Audio Century LM.
Crest Audio specifications are available in electronic form on our website: http://www.crestaudio.com
Technical Data
P E C I F I C AT I O N S
<0.01%
-129 dBu
-80 dBu
>102 dB
>96 dB
>85 dB
4kΩ balanced
>10kΩ balanced
140Ω balanced
(0VU = +4 dBu, 1.23V RMS)
+4 to -62 dBu
+12 to -38 dBu
+4 dBu
-2 dBu
+4 dBu
+28 dBu
All information per
May 5, 1997
35
29.563" / 751mm
Architect's & Engineer's Specifications - Centur y LM
S
E R I E S
Sheet
C
Century LM Consoles are available in the following configurations:
LM-12 (12 MONO OUTPUTS)
12, 20, 28, 32, 40, or 52 inputs
LM-20 (20 MONO OUTPUTS)
12, 20, 28, 32, 40, or 52 inputs
The following table contains net dimensions
for all Century LM consoles. (L x W x H)
Frame Size Imperial
24 34" x 29.63" x 9.5"
32 44" x 29.63" x 9.5"
40 53" x 29.63" x 9.5"
44 58" x 29.63" x 9.5"
52 67" x 29.63" x 9.5"
64 82" x 29.63" x 9.5"
All specifications subject to change without notice. © 1997 Crest Audio Inc.
24.75"/ 717mm
28.0"/ 711mm
LM
O N F I G U R AT I O N S
D
I M E N S I O N S
Metric
850 x 753 x 241mm
1100 x 753 x 241mm
1350 x 753 x 241mm
1460 x 753 x 241mm
1700 x 753 x 241mm
2070 x 753 x 241mm
2.437"
62mm
9.5"
241mm
Weight
Net lbs./kg
160/72.6
175/79.5
210/95.3
230/104.4
275/124.9
295/133.9