Allen&Heath DR66 USER GUIDE - Manual (Page 40)

40 DR66 & DR128 Installer User Guide
Appendix C : DR66 Architects Specification
The unit shall be a digital mix processor with 6 analogue inputs and 6
analogue outputs. The unit shall have a full crosspoint matrix, comprising 36
points, allowing any input, or combination of inputs, to be routed to any output
or combination of outputs. All crosspoints shall have a variable level. The 2
mic/line inputs and 6 line level outputs shall be on balanced XLRs. The 4
stereo line inputs shall sum to mono and be on RCA phono connectors.
Comprehensive ducking and automatic mic mixing capability shall be
provided.
The mic/line inputs shall have internal jumpers for pad and phantom power
selection. The mic/line gain range shall be -16dB to 54dB (including 22dB
pad) with input impedance of 2k
Ω (no pad) or 10kΩ (pad). The phono input
gain sensitivity shall be internally selectable at -10dBV or +4dBu with
impedance of 10k
Ω. The inputs shall be converted using a 20 bit analogue-
to-digital converter.
The XLR outputs shall have sensitivity selectable at -10dBV or +4dBu with
output impedance of 50
Ω. The conversion shall be by a 20 bit digital-to-
analogue converter.
The unit shall be configured over a standard RS232 port using a proprietary
32-bit Windows
® based software application with a Graphical User Interface.
Configurations shall be editable both on and off-line. The configuration shall
determine the allocation of internal signal processing resources to input and
output channels, as well as routing, levels, mutes, polarity reverse and
channel names. After configuration, the unit shall be capable of running
standalone, without an external computer. Signal processing resources
available shall include compressors, gates, limiters, graphic equalisers,
parametric equalisers with speaker crossover functionality. Optional
expander cards shall provide the facility for additional signal processing
resources and/or supplementary delay resources. The unit shall use Flash
memory to permit firmware upgrades via the RS232 port. An internal real-
time clock shall allow scheduling of timed events.
The RS232 port shall allow communication with industry standard remote
controllers to provide remote control of its levels, mutes and patch recall
using the Allen & Heath SysNet message protocol.
The unit shall be compatible with BS5839 installation requirements, be EMC
and CE compliant. The hybrid switched/linear power supply shall allow
emergency operation with a single 24V external battery and the unit shall
interface with alarm systems. The total power consumption shall be no more
than 25VA and the permissible incoming mains voltage range shall be
configurable to 100, 120, 220 or 230 VAC.
The front panel shall feature 8 installer-definable function keys for user
control of volume levels, mutes and patches, and also 8 installer-definable
function LEDs for 3-colour signal metering, mute and status indication. There
shall also be a backlit LCD for indication of setup menus, patch status and
channel levels.
Facilities for 12 programmable remote switches to control the unit parameters
shall be provided. Facilities for 4 programmable outputs to remotely control
external equipment shall be provided.
The unit shall weigh no more than 6kg in a 1U rack-mount chassis. The
chassis shall be constructed from zintec steel, be fully earth bonded and
feature a removable top for configuration of internal jumpers and presets.
The unit shall be the Allen & Heath DR66 digital audio mix processor.