Soundcraft GB2R 12ch

mikseta Soundcraft GB2R 12ch

The highly-acclaimed and successful Soundcraft GB Series has gained another new member, the Soundcraft GB2R.

This 19” rack-mountable mixer is designed specifically for smaller installations in churches and performance venues, or for small portable PA systems. It will also find friends in Broadcast where its high quality and feature set will be very appealing.

Available in two variants, the GB2R offers either 16 mono inputs to a stereo mix output, or a 12.2 version with 12 mono inputs, two full-feature stereo inputs and 2 group busses, each model having 6 auxiliary sends.

As always with Soundcraft consoles, emphasis has been placed on operational simplicity, clear and intuitive layout and the highest possible audio performance. The Soundcraft GB2R inherits both the GB30 Mic preamplifier and GB30 Equaliser designs from the GB4 and GB8.

For ease of installation, the connector section is contained in a rotatable pod, allowing cable access from the top of the mixer if sat on a table-top, or from the rear when mounted in a 19” rack.

On the stereo inputs on the 12.2 model, connectors are provided for both Mic and Line inputs. With Mic signals routed to the local channel, the Line inputs are available as stereo returns to the main mix bus. Two stereo returns and a 2-track (for example CD replay) input are provided, which means that the GB2R-12.2 model can offer up to 26 inputs to mix in a mixer just 19” (485mm) wide.

Every input has a pre/post switchable direct output for recording or effects sends, while an internal universal voltage PSU avoids external power supply connections.

The whole GB Series carries the high quality hallmark with which Soundcraft is synonymous, with engineering and design as you’d expect from this high-end manufacturer. Careful attention has been given to the mechanical construction, to ensure reliability and ruggedness under strenuous conditions, with all input modules being constructed with individual vertically-mounted pcb’s, fitted to the steel chassis front panel with individually-nutted potentiometers.

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(@1kHz, typical)

Input Channel Mute : <-97dB
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 PLEASE NOTE: GB2R noise, crosstalk and CMRR specifications exceed the standard GB Series
specifications, please check the website for full details

Typical @ 1kHz : 80dB

Input & Output Max Levels

Mono & Stereo Mic Inputs : +15dBu
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 Impedances

Mic Inputs : 2kΩ
 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
EQ (Stereo input)

HF : 13kHz, +/-15dB, 2nd order shelving
Hi-Mid : 2.5kHz, +/-15dB, Q=0.8
Lo-Mid : 450Hz, +/-15dB, Q=0.8
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/GB2R) : 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%

Width Weight
GB2R 12/2 483mm (19") 12.5kg (27lbs)
with rack ears
440mm (17.32")
without rack ears
GB2R 16 483mm (19") 12.5kg (27lbs)
with rack ears
440mm (17.32)
without rack ears