British
Originals
A U D I O
PRODUCT OVERVIEW
The GC400 is a professional dual channel
compressor/noise gate that can be operated as 4
separate processors or independantly linked for
stereo
applications.
In
Link
mode,
Gate/Compressor 1 provide Master control and
'rms summing' is used throughout to ensure that
signals from both the linked channels affect
compression or gating equally.
The compressor sections have fully variable
controls for Threshold, Ratio, Release and Gain.
Compression slope can be switched between
Hard or Soft knee and Attack/Release can be fully
Auto or program dependant Attack with manually
adjustable Release. Each channel also has a
sidechain insert jack.
Gain Reduction is displayed via an 8 segment
LED bargraph.
The gate sections have variable controls for Filter
Frequency, Threshold and Release. Range is
switchable to provide either full muting or more
subtle signal attenuation. Attack can be selected
between Fast or Slow and Release is manually
adjustable. High and Low pass sidechain filters
are included and can be used for a wide range of
frequency conscious gating applications.
Led indicators are provided for Above/Below
Threshold, External Key, Bypass and Link.
All inputs and outputs are electronically balanced
and can be switched b4dBu and -10dBV
operating levels.
SPECIFICATIONS
ELECTRICAL
Frequency response:
Input Impedance:
Maximum Input Level:
Input-Output Level:
Output Impedance:
Load Impedance:
Max. Output Level:
THD:
Signal to Noise Ratio:
20Hz to 20kHz (+0, -0.5dB)
20k balanced
+20dBu
+4dBu or -10dBV switched
75R balanced
> 600R
+20dBu
< 0.05% (1kHz, +4dBu)
> 90dB gate
> 85dB compressor
+4dBu out, 22Hz- 22kHz
In keeping with our policy of continuous improvement LA Audio reserves the right to alter specifications without prior notice.
Manufactured in the UK by LA Audio, 40 Chigwell Lane, Loughton, Essex, IG10 3NY, UK.
Tel: +44 (0)208 418 0778. FAX: +44 (0)208 418 0624. Web: www.laaudio.co.uk. email: [email protected]
COMPRESSOR:
Threshold:
Ratio:
Knee:
Attack:
Release:
Gain:
GATE:
Threshold:
Range:
Attack:
Release:
High Pass Filter:
Low Pass Filter:
Power Requirement:
PHYSICAL
Input Connectors:
Output Connectors:
Power Connection:
Dimensions (mm):
Weight:
Shipping Weight:
Temperature Range:
ARCHITECTS & ENGINEERS SPECIFICATIONS
The GC400 shall be a 1U unit providing 2 channels of
Auto Compression and Frequency Conscious noise
gating. The Compressor and Gate channels can be linked
for stereo operation with Channel one providing master
control.
Each compressor section shall have fully variable
Threshold, Ratio, Release and Gain. Attack shall be
switched between Auto Attack/Release and program
dependant Attack with manually adjustable Release.
Gain reduction will be displayed on an 8 segment
bargraph. Bypass and Link switches shall have led
indicators.
-40dB to +20dB
1:1 to >20:1
Hard or Soft knee
Auto or program dependant
Auto or manual 40mS to 4S
+20dB to -20dB
-50dB to -20dB
-80dB or -20dB switched
Fast: 50uS
Slow: 1mS
10mS to 4S variable
22Hz to 3kHz variable
250Hz to 30kHz variable
15VA, 115/230V AC, 50/60Hz
XLR 3 pin (Pin 2 hot)
XLR 3 pin (Pin 2 hot)
IEC 3 pin socket,
Detachable lead
482 (19") W
164 (6.5") D
44 (1.75") H - 1U
2.9 kg, 6lbs
3.6kg, 8lbs
Operating 0ºC to 50ºC
Storage -30ºC to 75ºC
2 Channel
Auto Compressor & Frequenc
y Conscious Noise Gate
GC
