Specifications

16
GR 05
2 Microphone Inputs
The GR05 is furnished with 2 balanced mic inputs
on XLR, both of which have rear panel gain controls.
Removal of the top panel allows access to internal
jumper links, providing a 30dB attenuator pad, +15V
phantom power and a high pass filter at 200Hz.
Internal trimmers also provide 2-band EQ, hi-mid
frequency with sweep and LF shelving. The front
panel has 3-colour LED meters, and level controls
for all routed outputs.
Stereo Inputs
3 RCA sockets are provided for stereo inputs, and
internal jumper links allow access to -10dBV to
+4dBu level matching. 3-colour LED meters and
level controls are also provided for the stereo inputs
on the front panel.
FEATURES
:
XLR Outputs
4 XLR connectors are provided for the outputs,
which are internally configured by the jumper links
for -10dBV to +4dBu. The outputs can be grouped
and front panel level controls can be disabled using
the internal. Internal trimmers also provide shelving
EQ for HF and LF.
Other configurable functions include VCA control
and outputs which can be assigned to front panel
controls or alternatively, remote control operation.
Zone muting is possible via a front panel switch
and LED indicator.
Routing Matrix
All inputs can be routed to any combination of
outputs direct, or via VCA control, so that the direct
path is not affected by output level controls and
ducking. Matrix assigment is achieved using
internal jumper links.
Remote Control
VCA path remote control can be configured by the
installer on internal jumpers. The expander option
(using another GR05 acting as slave to the main
unit and connected by a 25-pin D connector)
includes a remote DC input for each of the 4 outputs.
Ducking
The GR05 allows ducking and muting of
channels, and is configured either internally on
jumpers or externally via an opto-isolated input
for external trigger.
A status LED on the front panel is provided.
Expander / Remote
Additional mic & line inputs can be provided via
another ‘slave’ GR05 using the 25-pin D-type
female connector.
Lock Out System
Input controls are always active; output levels
controls may be disabled. All level controls may
be set in 3 ways: 1) Knob fitted for operator control
2) knob removed for screwdriver preset 3) hole
plugs (provided) fitted to lock out control.
PSU
Internal mains voltage PSU. DC backup input is
provided. Status indicator.
MIC/LINE input
Balanced XLR, pin2 hot Pad out = >2k ohm,
-58 to -22dBu
Pad in = >10k ohm,
-28 to +8dBu
Phantom power +15V DC
STEREO input
Dual RCA phono >10k ohm,
-10dBV or +4dBu
ZONE output
Z balanced XLR, pin2 hot <75 ohm, -10dBV to
+4dBu trimmer
EXPANDER input
25-pin D female, unbalanced >10k ohm, 0dBu
EXPANDER output
25-pin D female, Z balanced <75 ohm,
as set for zone out
Mic EQ
LF +/-12dB 70Hz shelf, M/HF peak/dip +/-14dB
@ 300Hz to 6kHz
Output EQ
LF +/-12dB 70Hz shelf, HF +/-14dB 9kHz shelf
Technical Specifications 0dBu = 0.775 Volts rms, +4dBu = 1.23V rms, 0dBV = 1 Volt rms, -10dBV = 316mV rms
:
The GR05 is a 5-input, 4-output analogue zone mixer for sound installations requiring 2 mic and 3 stereo line to
up to 4 mono or 2 stereo zones. Internal jumpers allow custom configuration protected for day-to-day operation
by non-technical staff. Zone volume may be remotely controlled.
Maximum output
+20dBu into 2k ohm
Internal headroom
+20dB
Freq response
20Hz to 50kHz +/-1dB
THD+noise
<0.005% @ 1kHz +12dBu
Crosstalk
Better than -90dB shutoff, -80dB interchannel
Noise
Mic EIN -128dB referred to
150 ohm source
Line preamp -91dBu
Mix noise all routed <-86dBu
Remote level
Output VCA 0V = off, +10V DC = max
Remote DC reference +10V DC 5mA max
Ducking
Internal signal detect from mic 1 and/or 2
External trigger opto-isolated, switch to 0V
Selectable depth -10dB, -20dB, mute, speed fast, slow
Routing
Assignable 9x4x2 crosspoint matrix
OFF, DIRECT or VCA paths to each output
Signal meters
3-colour LED for each input and output
Green signal (-12dB)
Yellow 0dB
Red peak (+15dB)
Power supply
100 to 230V 47-63Hz AC, internally wired for country
voltage 18VA max
DC backup +/-12V to 16V DC, 300mA
Mechanical specifications - Dimensions in mm
Width Height Depth
Desktop 483 44/49 260
(19") (1.75")(1U) (10.3")
Weight 4kg
(9lb)