Xta GQ600 User Manual

Contents

Safety Warnings .......................................................... 1..................

Unpacking the GQ600

Introduction ............................................................... 2..................

GQ600 Filter Characteristics .............................................. 2..................

1/3 Octave Centre Frequencies ........................................... 4..................

Front Panel Functions ..................................................... 5..................

Rear Panel Functions ..................................................... 6..................

Specifications

Operating Notes .......................................................... 8..................

Warranty ................................................................. 9..................

.............................................................7..................

....................................................1..................

Thanks

Thank you for choosing the XTA GQ600 for your application. Please spare a little time to
digest the contents of this manual (figuratively speaking), so that you obtain the best
possible performance from this unit.

All XTA products are carefully engineered for world class performance and reliability.
If you would like further information on this or any other XTA product, please call us.
We look forward to helping in the near future.

Safety Warnings

Please note the following information which is provided for your safety:

Check correct operating voltage is set on the power supply before connecting mains
power.

Do not expose this unit to rain or moisture.

XTA Electronics Ltd.

Do not expose this unit to excessive heat.

Replace all fuses with correct type only.

Do not remove the covers from this unit. No user serviceable parts inside - refer all
servicing to qualified personnel.

The mains power cord is fitted with a safety earth (ground) connection. Do not operate this
unit with this connection removed.

Unpacking the GQ600

After unpacking the unit please check carefully for damage. If damage is found, please
notify the carrier concerned at once. Any claim must be instigated by you, the consignee.
Please retain all packaging in case of future reshipment.

GQ600 Page 1

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

High-pass filter

min

Frequency response of GQ600 with sliders set "flat" and EQ "in", showing effect of high-pass
and low-pass filters.

mid

max

LPF out

LPF in

GQ600 Page 2