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GB2 User Guide GB2 User Guide Downloaded from www.Manualslib.
IMPORTANT Please read this manual carefully before using your mixer for the first time. © Harman International Industries Ltd. 2006 All rights reserved Parts of the design of this product may be protected by worldwide patents. Part No. ZM0344-01 Soundcraft is a trading division of Harman International Industries Ltd. Information in this manual is subject to change without notice and does not represent a commitment on the part of the vendor.
Contents Introduction Key Features Warranty 5 6 7 Installation 9 SAFETY SYMBOL GUIDE IMPORTANT SAFETY WARNINGS Mains Installation WORKING SAFELY WITH SOUND Setting Up & Troubleshooting Optional External Power Supply Audio Connector Pinouts Dimensions 9 10 12 14 14 16 17 18 Block Diagrams 19 Input Channels Master Section / Outputs 20 21 Using The Console 23 Mono Input Stereo Input Master Section Rear Connector Panel Lamps 24 26 29 31 32 Typical Specifications 33 Mark Up Sheets 34 GB2 User G
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipmentis operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Intr oduction Introduction GB2 User Guide Downloaded from www.Manualslib.
Key Features Thank you for buying the GB2 mixing console. its main features are: Individually switched 48V phantom power on every mono input module. 6 Aux sends. 4 Group sends (paired). 6 X 2 Output Matrix. New GB30 mic pre-amp. 4-band GB30 EQ. Integral power supply, with an external power supply link option. All metal TRS jacks and Neutrik XLRs. Direct outputs on all mono input channels. 6 Downloaded from www.Manualslib.
Warranty 1 2 3 4 5 6. 7. GB2 User Guide Downloaded from www.Manualslib.com manuals search engine Soundcraft is a trading division of Harman International Industries Ltd. End User means the person who first puts the equipment into regular operation. Dealer means the person other than Soundcraft (if any) from whom the End User purchased the Equipment, provided such a person is authorised for this purpose by Soundcraft or its accredited Distributor.
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Installa tion Installation For your own safety and to avoid invalidation of the warranty please read this section carefully. SAFETY SYMBOL GUIDE For your own safety and to avoid invalidation of the warranty all text marked with these symbols should be read carefully.
IMPORTANT SAFETY WARNINGS THIS UNIT MUST BE EARTHED Under no circumstances should the mains earth be disconnected from the mains lead.
WARNINGS • Read these instructions. • Keep these instructions. • Heed all warnings. • Follow all instructions. • This unit contains no user serviceable parts. Refer all servicing to a qualified service engineer, through the appropriate Soundcraft dealer. • Clean the apparatus only with a dry cloth. • Do not install near any heat sources such as radiators, heat resistors, stoves, or other apparatus (including amplifiers) that produce heat. • Do not block any ventilation openings.
General Precautions Avoid storing or using the mixing console in conditions of excessive heat or cold, or in positions where it is likely to be subject to vibration, dust or moisture. Do not use any liquids to clean the fascia of the unit: a soft dry cloth is ideal. Avoid using the console close to strong sources of electromagnetic radiation (e.g. video monitors, high-power electric cabling): this may cause degradation of the audio quality due to induced voltages in connecting leads and chassis.
Initial Wiring Considerations For optimum performance, it is essential for the earthing system to be clean and noise free, as all signals are referenced to this earth. A central point should be decided on for the main earth point system, and all earths should be 'star fed' from this point. It is common electrical practice to `daisy chain' the earths to all electrical outlets but this method is unsuitable for audio installations.
Points to Remember In all cases, use good quality twin screened audio cable. Check for instability at the output. Always connect both conductors at both ends, and ensure that the screen is only connected at one end. Do not disconnect the mains earth from each piece of equipment. This is needed to provide both safety and screen returns to the system star point.
Setting Up & Troubleshooting Initial set-up Once you have connected up your system (see the sections on connection and wiring earlier in this manual for guidance) you are ready to set initial positions for the controls on your mixer. Set up individual input channel as follows: Connect your sources (microphone, keyboard etc.) to the required inputs and release the MUTE switches. Note: Phantom powered mics should be connected before the 48V is switched on.
Meters not showing any signal Has the input gain been set correctly? (see above.) Is the source connected to the appropriate input socket for the level of signal? Do you have something connecetd on the Inserts, and is that external device switched on? Are the Master faders set at max.
Audio Connector Pinouts GB2 User Guide Downloaded from www.Manualslib.
Dimensions 18 Downloaded from www.Manualslib.
Bloc k Dia grams Block Diag GB2 User Guide Downloaded from www.Manualslib.
Input Channels 20 Downloaded from www.Manualslib.
Master Section / Outputs GB2 User Guide Downloaded from www.Manualslib.
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Using The Console GB2 User Guide Downloaded from www.Manualslib.
Mono Input The MIC GAIN control (1) adjusts the sensitivity of both mic (XLR) and Line (1/4” jack) inputs. Both inputs are electronically balanced, and are located on the rear connector panel. The PEAK LED (2) monitors two points in the audio path: pre-insert point and post-EQ. The 48V switch (3) applies 48V phantom power to the input XLR. An adjacent LED indicates when the phantom power is on. Don’t connect microphones with the phantom power switched on.
Rear Connectors INSERT (1/4" TRS Jack) Tip Send Signal Ring Return Signal Sleeve Ground LINE INPUT (1/4" TRS Jack) Tip Signal Hot Ring Signal Cold Sleeve Ground MIC INPUT (3 pin female XLR) Pin 1 Ground Pin 2 Signal Hot Pin 3 Signal Cold DIRECT OUTPUT (1/4" TRS Jack)“ Tip Signal Hot Ring Signal Cold Sleeve Ground The DIRECT OUTPUT is normally post fader. Pressing the PRE button switches it to pre-insertpoint. GB2 User Guide Downloaded from www.Manualslib.
Stereo Input MIC GAIN (1) adjusts the sensitivity of the stereo pair of mix XLR inputs. They are electronically balanced, and are located on the rear connector panel. The 48V switch (2) applies 48V phantom power to the input XLRs. An adjacent LED indicates when the phantom power is on. Don’t connect microphones with the phantom power switched on. Only switch the phantom power on or off with the output fader down. The PHASE switch (3) inverts the phase of the left channel XLR.
Rear Connectors MIC INPUT LEFT and RIGHT (3 pin female XLR) Pin 1 Ground Pin 2 Signal Hot Pin 3 Signal Cold LINE INPUT LEFT and RIGHT (1/4" TRS Jacks) Tip Signal Hot Ring Signal Cold Sleeve Ground GB2 User Guide Downloaded from www.Manualslib.
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Master Section GROUPS There are four Groups. They are arranged as two stereo pairs. Each GRP fader (1) is placed after its Group insert point (on the rear panel). The fader controls the signal level which is then fed to the Group Output XLR on the rear connector panel. Each PFL button (2) feeds its group’s post-insert pre-fader signal to the monitor outputs and phones output. Each post-fader group signal pair can be routed to the main mix stereo pair via the MIX switch (3).
Record Outputs The REC outputs are via a stereo pair of RCA phono sockets on the rear connector. They carry the same signals as the Mix L and Mix R outputs. Monitoring & PFL/AFL The monitor section feeds the Monitor L & R outputs ( 3-pole 1/4” balanced jack sockets on the rear connector panel) and the headphones output (14).
Front Panel Connectors T/B MIC (3-pin female XLR) Pin 1 Ground Pin 2 Signal Hot Pin 3 Signal Cold H/PHONES (1/4” TRS Jacks) Tip Left Signal Ring Right Signal Sleeve Ground Rear Connector Panel MIX L, R & MONO OUTPUTS (3-pin male XLRs) Pin 1 Ground Pin 2 Signal Hot Pin 3 Signal Cold MIX L & R INSERT POINTS (1/4” TRS Jacks) Tip Send Signal Ring Return Signal Sleeve Ground L & R MONITOR OUTPUTS (1/4” TRS Jacks) Tip Signal Hot Ring Signal Cold Sleeve Ground GROUP 1-4 OUTPUTS (3-pin male XLRs) Pin 1 Ground Pin
GROUP 1-4 INSERT POINTS (1/4” TRS Jacks) Tip Send Signal Ring Return Signal Sleeve Ground AUX 1-4 OUTPUTS (3-pin male XLRs) Pin 1 Ground Pin 2 Signal Hot Pin 3 Signal Cold AUX 5-6 OUTPUTS (1/4” TRS Jacks) Tip Signal Hot Ring Signal Cold Sleeve Ground MATRIX 1-2 OUTPUTS (3-pin male XLRs) Pin 1 Ground Pin 2 Signal Hot Pin 3 Signal Cold REC OUTPUTS (RCA Phonos) Centre Signal Screen Ground 2-TRACK INPUTS (RCA Phono) Centre Signal Screen Ground Lamps The 4-pin sockets on the fascia, which are marked ‘LAMP’, can
Typical Specif ica tions Specifica ications Noise Measured RMS, 22Hz to 22kHz Bandwidth Mic E.I.N.
Mar k Up Sheets Mark You may wish to photocopy the next pages to record settings for gigs. 34 Downloaded from www.Manualslib.
GB2 User Guide Downloaded from www.Manualslib.
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