DUAL FUNCTION AUDIO MIXING CONSOLE USER GUIDE PUBLICATION AP3102
LIMITED ONE YEAR WARRANTY This product has been manufactured in the UK by ALLEN & HEATH and is warranted to be free from defects in materials or workmanship for a period of one year from the date of purchase by the original owner. To ensure the high level of performance and reliability for which this equipment has been designed and manufactured please read this User Guide before use.
INTRODUCTION The GL3300 continues ALLEN & HEATH’s commitment to provide high quality audio mixing consoles engineered to meet the exacting requirements of today’s audio business. It brings you the latest in high performance technology and offers the reassurance of over two decades of console manufacture and customer support. This user guide presents a quick reference to the function, application and installation of the GL3300.
INSTALLING THE POWER SUPPLY UNIT Refer to the SAFETY WARNING on the first page of this User Guide. The RPS9 Power supply is provided with the GL3300 to convert the AC mains voltage to the regulated positive and negative DC voltages required to power the console. It also supplies the +48V DC phantom power voltage for use with certain microphones. It connects to the console by means of a 2.5 metre DC power cable fitted with a locking 5 pin XLR plug.
EARTHING THE AUDIO SYSTEM The console chassis is connected to mains earth via the DC power cable. Audio 0V is connected to the chassis and therefore mains earth. In this way all signal returns and connector shields are connected to mains earth at the console. To ensure operator safety do not remove the earth connection from the power supply mains plug. For best performance it is important that the earth system is solid, clean and noise-free.
The ALLEN & HEATH GL3300 represents a breakthrough in price versus performance and functionality. It offers the professional user a new level of versatility to quickly adapt to the exacting demands of live sound engineering today. The GL3300 is developed from the successful GL3000 console which included innovative 'mode switching' that quickly converts the console from Front-of-House to On-stage Monitor operation.
OPTIONS & ACCESSORIES There are a range of options and accessories available for the GL3300 range. All are supplied complete with fixings and installation and operating instructions. Contact your nearest Allen & Heath dealer if you wish to purchase an option or accessory. VU meterbridge The VU meterbridge is designed for use in all lighting conditions and monitors Groups (Aux) 1-8, Left, Right and Mono/PFL signal levels. It fits onto the rear extrusion beam of the console and is full length.
RPSD2 Dual Supply Combiner The RPSD2 is designed to monitor the DC power supply to the GL3300 console. With an additional power supply the RPSD2 will quickly and silently change over to the backup supply should the original power supply fail.
INPUT CHANNELS For line sources on XLR simply plug into the XLR with the jack socket unplugged. Plug in a microphone or line level source. Use balanced cables where possible to prevent interference pickup on long cable runs. Unbalanced sources may be connected by linking signal cold to ground (XLR pin 3 to pin 1, jack ring to sleeve) at the connector. MONO F For line sources on XLR simply plug into the XLR with the jack socket unplugged.
8 AUX SENDS 8 AUX SENDS provide ample feeds for foldback monitors and effects. These are in two groups of four each with a POST/PRE switch to source the sends either pre-fader or post-fader. AUX 1-4 feed balanced XLR outputs capable of driving long cable runs and include INSERT points. These are normally used to provide MONITOR SENDS to the performers and stage crew, although they can be used for additional effects.
AUX SENDS EFFECTS GROUPS MONITORS AUX 5-8 jack outputs to send selected signals to external effects devices. AUX 1-4 balanced outputs feed foldback monitors with graphic EQ on INSERT to tune out acoustic resonances or to minimise feedback. AFL lets you check the output signal after the insert and master level control. GROUPs 5-8 are available on balanced XLR outputs to drive long cable runs.
STEREO RETURNS The L and R inputs are on individual jack sockets. Sensitivity is for line level signals of -10dBV and more. For a mono source plug into the L input only. 2 Stereo return inputs are provided to return the effects ('wet') signal, usually from a stereo device, to the mix. These are normally routed to the main LR mix but may be returned to the corresponding pairs of subgroups for group effects (1-2 or 3-4).
MATRIX Two matrix outputs A and B are provided. These are additional outputs on TRS jacks controlled by 60mm smooth travel FADERS and with AFL monitoring to check the post fader signal. The matrix mix is created from the 8 groups, L and R by adjusting the MTX level controls. These signals are fed post their respective faders. Note that in 'MONITOR MODE' (REVERSE selected) the matrix is still fed from the groups (now routed via the aux masters).
LAMP Plug in a 12V gooseneck lamp to provide illumination of the control panel. This should be a BNC connector type. 2-TRACK Individual jack sockets are provided for left and right inputs (returns) from and outputs (sends) to a stereo recorder such as a DAT or cassette machine. Alternatively the RETURN may be used for stereo intermission replay from a CD or similar to the main mix by pressing L-R. An LED warns that replay is on.
DIMENSIONS Width master section Weight GL3300-816 .............................. 771mm ........................ 21kg GL3300-824 .............................. 1026mm ...................... 29kg GL3300-832 .............................. 1281mm ...................... 37kg GL3300-840 .............................. 1536mm ...................... 45kg GL3300-expander ..................... 255mm ........................
INTERNAL LINK OPTIONS The console is set to satisfy most applications that should be encountered. However, the following internal link options are offered to provide alternative settings for those applications that may require them. These options involve resoldering of circuit board links and should only be carried out by competent technical personnel. Further information is available in the GL3300 SERVICE MANUAL and from your agent. MONO INPUT 1.
