Description
GB2 24-Channel Analog Console
The GB2 is the latest addition to the Soundcraft GB Series, featuring 4 group busses configured as 2 stereo subgroups and an integral 6 x 2 matrix.
Intended for installed-sound and Audio-Visual applications that do not require the functionality provided by the GB4 or GB8, the GB2 is available in frame sizes of 16, 24 and 32 mono inputs, each with 2 stereo inputs as standard. Each input features the high-performance GB30 Mic Pre and GB30 Equaliser designs of the GB4 and GB8, along with 6 Aux buses.
Four Subgroups are provided as two stereo pairs, with a unique facility for adjusting the width of the stereo signal across the stereo mix. The channel pan settings are retained on the group outputs, while the degree of stereo separation to the mix bus is independently adjustable from full stereo through to mono.
The GB2 also features two stereo input channels, with separate mic and line inputs. In normal use, the mic inputs are routed to the local channel and the line inputs act as a stereo return to the mix bus. Selecting the LINE input to the local channel overrides the Mic inputs.
Features
- 24 mono input channel version
- Channel direct out with pre/post switch (switch on rear con)
- Internal power supply
- GB30 Mic Preamps and GB30 EQ on Mono Inputs
- 2 Stereo Inputs
- 4 groups buses, configured as 2 stereo sub groups
- Stereo mix and mono sum outputs
- 6 Aux outputs
- 2 matrix outputs
- Individual +48V phantom power switch
- 4-band EQ with sweep minds
- Peak & signal LEDs on which channels
Recommended For
- Houses of Worship
- Music Venues
- Musicians & Bands
- Recording Theaters
- Tour Sound
Specifications
Noise
Measured RMS, 22Hz to 22kHz Bandwidth
Mic E.I.N. @ unity gain, 150Ω source impedance -128dBu
Mix Output, 32 inputs routed to mix <-85dBu
Group Outputs <-85dBu
Aux Outputs <-83dBu
Matrix Outputs <-89dBu
Crosstalk (@1kHz, typical)
Input Channel Mute <-93dB
Input Fader cut-off <-92dB
Pan isolation <-70dB
Mix route isolation <-93dB
Group route isolation <-93dB
Adjacent channel crosstalk <-99dB
Group to Mix <-90dB
Aux Send pots offness (typical) <-80dB
Matrix Send pots offness (typical) <-80dB
Frequency Response
Mic/Line Input to any output, 20Hz - 20kHz <1dB
THD + N
Mic sens. -30dBu, +20dBu at all outputs @1kHz <0.006%
CMRR
Typical @ 1kHz 80dB
Input & Output Max Levels
Mono & Stereo Mic Inputs +15dBu
Mono Line Inputs +30dBu
Stereo Line Inputs +20dBu
Insert Returns +20dBu
Any output +20dBu
Nominal Operating Level 0dBu
Headphone Power 2x250mW 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 50 - 600Ω
