XTA GQ600 - Manual (Page 7)

GQ600 Page 5
Introduction
The GQ600 combines innovative features with impressive specification, to produce a new
level of performance in professional equalisation.
The GQ600 is a precision dual channel 1/3 octave graphic equaliser, which provides up to
10dB of boost or cut at 30 centre frequencies between 25Hz and 20kHz. Filter design has
been carefully optimised for good interpolation and improved narrow band performance,
whilst high quality long-throw 45mm sliders are used for better resolution. The GQ600 also
provides excellent noise and distortion performance, with a flat noise figure of better than
-98dBm.
A shelving H.F. Trim section is provided, with adjustable gain and frequency allowing fast
adjustments to be made to overall high frequency response. This obviates the need for
system re-voicing when, for example, changes in humidity or audience size occur.
A sweepable high-pass filter offers turnover frequencies of 10Hz to 150Hz and a fixed
frequency low-pass filter is also provided for increased H.F. driver protection. This filter is
selectable in or out of circuit via jumper links on the main circuit board.
Audio inputs and outputs are provided on lockable XLR 's and 'quick-wire' Klippon connectors
and are fully electronically balanced as standard. Optional transformer balancing is also
available for both inputs and outputs.
Additional features include: relay fail-safe bypass, peak level indicators and optional Perspex
security cover.
The GQ600 is sturdily constructed from high quality components and undergoes extensive
testing and quality control procedures including a minimum 48 hours burn-in period prior to
despatch.
GQ600 Filter Characteristics
Frequency response of GQ600 with sliders set "flat" and EQ "in", showing effect of high-pass
and low-pass filters.