ALLEN & HEATH DR66 Specifications download pdf (Page 10)

The GR05 is an affordable yet high quality ‘plug and play’ analogue 1U rack solution for sound installations,

mixing up to 2 mic and 3 stereo sources for up to 4 output zones. It presents a very simple interface for the

operator, but has amazing installer configurable flexibility protected ‘under the hood’. It provides tools such

as level matching, metering, routing matrix , EQ, ducking, VCA remote control and expandability to satisfy the

many demands of each installation.

The GR05 is at home in small but high quality professional sound installations providing zoned background music and announcements,

with sources such as microphones, CD, 2-track players, retail radio feeds, video sound, jukeboxes, etc. Venues where GR05 can be

found include bars, shops, sports centres, restaurants, public galleries and venue foyers.

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

Outputs XLR

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.

Maximum output level

Impedance balanced +20dBu into 2k ohm

Frequency response

20Hz to 30kHz 0/-1dB

Distortion - measured at +12dBu 1kHz Line in to Output

< 0.005%

Crosstalk measured at 1kHz

Channel shutoff < -90dB

Interchannel < -80dB

Channel pan < -75dB

Noise 22Hz - 22kHz referred to 150 ohm source

Mic EIN -128dB

Line preamp at 0dB gain -91dBu

Mix noise (all routed) < -86dB

Inputs + Output Meters

3 colour LED

Red: Peak: on 5dB before clipping

Yellow: 0dB

Signal: dynamic indication from -12dB

Internal headroom

+20dB

Routing

Assignable 9 in, 4 (x2) Out

Crosspoint Matrix

Output Levels Control

High performance VCA system

Routed Direct

Internal trimmer

-10dBV to +4dBu

Routed via VCA Front panel level control or

External remote level control

Switch operated zone mute

option link

Ducking options Internal Trimmer

-10dBu to +4dBu

Ducking - Release fast or slow links

Depth -10dB, -20dB or Mute links

Internal & External Ducking circuits.

Internal Trigger from mic 1

and mic 2 by option links.

External Trigger from opto

isolated input

Mic Inputs HF/MF Swept

Peak/Dip, LF Shelf

Outputs HF Shelf, LF Shelf

Power Supply Internally regulated +/- 15V

Mains Power Internal unit

AC mains input 100 to 230V a.c.

@ 47-63Hz

Internally wired to

country voltage

Power consumption 18VA max

Mains fuse rating

100-120V a.c. use

T630mA 20mm

220-240V a.c. use

T315mA 20mm

DC Power Backup External d.c. power

supply or batteries

+/-12V to 16V d.c.

@ 300mA

Mechanical specifications - Dimensions in mm

Width Height Depth

Desktop 483 44 260

(19") (1.7") (10.2")

Weight 4kg

(9lb)

Technical Specifications

0dBu = 0.775 Volts rms, +4dBu = 1.23V rms,

0dBV = 1 Volt rms, -10dBV = 316mV rms

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.

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ALLEN & HEATH DR66 Specifications Page 10

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