Application Guide

Soundcraft Registered Community Trade Mark/RTM No. 000557827
SOUNDCRAFT
HARMAN INTERNATIONAL INDUSTRIES LTD.,
CRANBORNE HOUSE, CRANBORNE ROAD
POTTERS BAR, HERTS, EN6 3JN, UK
T: [phone]
F: [phone]
E: [e-mail]
SOUNDCRAFT USA
8500 BALBOA BLVD.
NORTHRIDGE, CA 91329, USA
T: [phone]
F: [phone]
E: [e-mail]
www.soundcraft.com
Soundcraft reserves the right to improve or otherwise alter any
information supplied in this document or any other documentation
supplied hereafter. E&OE 07/06
This equipment complies with the EMC Directive 89/336/EEC
Part No: ZL0627-03
TYPICAL SPECIFICATIONS
Frequency Response Mic/Line Input to any output, 20Hz - 20kHz ...................................... <1dB
THD + N Mic sens. -30dBu, +20dBu at all outputs @1kHz .......................... <0.006%
Noise Measured RMS, 22Hz to 22kHz Bandwidth
Mic E.I.N. @ unity gain,150Ω source impedance ........................... -128dBu
Mix Output, 40 inputs routed to mix .............................................. <-82dBu
Group & Centre Outputs ................................................................ <-83dBu
Aux Outputs (GB2 Groups only) ..................................................... <-80dBu
Matrix Outputs............................................................................... <-89dBu
Crosstalk Input Channel Mute......................................................................... <-97dB
(@1kHz, typical) Input Fader cut-off........................................................................... <-95dB
Pan isolation ................................................................................... <-75dB
Mix route isolation........................................................................... <-97dB
Group route isolation....................................................................... <-97dB
Adjacent channel crosstalk.............................................................. <-99dB
Group to Mix.................................................................................... <-84dB
Aux Send pots offness (typical) ....................................................... <-84dB
Matrix Send pots offness (typical) ................................................... <-84dB
CMRR Typical @ 1kHz .................................................................................... 80dB
Input & Output Mono & Stereo Mic Inputs.............................................................. +15dBu
Max Levels Mono & Stereo Line Inputs ............................................................. +30dBu
Stereo Returns & Insert Returns ..................................................... +20dBu
Any output ...................................................................................... +20dBu
Nominal Operating Level ..................................................................... 0dBu
Headphone Power.................................................... 2 x 250mW into 200Ω
Input & Output Mic Inputs ............................................................................................ 2kΩ
Impedances Line Inputs and Stereo Returns .......................................................... 10kΩ
Input channels Insert Return....................... 5kΩ with EQ in, otherwise 3kΩ
Mix, Group, Aux, Matrix & Direct outputs............................................ 150Ω
Insert sends ........................................................................................ 75Ω
Recommended Headphone Impedance .................................... 100 - 600Ω
High pass filter (Mono input) .........................................................................100Hz, 18dB per octave
EQ (Mono input) HF ....................................................... 13kHz, +/-15dB, 2nd order shelving
Hi-Mid......................................................... 550Hz-13kHz, +/-15dB, Q=1.5
Lo-Mid ......................................................... 80Hz-1.9kHz, +/-15dB, Q=1.5
LF.......................................................... 80Hz, +/-15dB, 2nd order shelving
Metering Input channels (GB4/GB8) ......... Single tri-colour 4-segment LED bargraph
Outputs (GB4) ................................ 7 tri-colour 12-segment LED bargraphs
Outputs (GB8) ............................. 11 tri-colour 12-segment LED bargraphs,
+ Meterpod with 3 VU meters (L/R/C)
Outputs (GB2) ........................... 2 tri-coloured 12-segment LED bargraphs,
(indicates monitor source level)
Power consumption AC mains supply (internal PSU) 85V-270V AC,
50/60Hz universal input
Power consumption............................................................ Less than 150W
Operating conditions Temperature range............................................................. -10ºC to +30ºC
Relative humidity........................................................................ 0% to 80%
GRAHAM BLYTH
In the year of our 30th anniversary, Soundcraft
co-founder and Technical Director Graham Blyth has
taken a well established and classic Soundcraft
microphone preamplifier to a new level of performance,
resulting in the new GB30 preamp which boasts
extraordinary clarity with exceptionally controlled
overload characteristics.
Soundcraft’s legendary 4-band EQ has also been
improved further with the addition of elements derived
from Soundcraft’s highly successful MH Series consoles.
This new design delivers the sound of the classic ‘British
EQ’ enhanced even further with more focused HF and LF
shelving sections.
Note:These figures are typical of performance in a normal electromagnetic environment and are often exceeded. Performance may be
degraded in severe conditions. All measurements refer to electronically balanced inputs and outputs.
4-BUS & 8-BUS
PROFESSIONAL
MIXING CONSOLES