Allen & Heath DX164-W User Manual
DX164-W User Guide AP11446 Issue 2
DX164-W
The DX164-W is a fixed installation I/O Expander for the Allen & Heath dLive and
SQ digital mixing systems. It provides 16 remote controlled mic/line preamps
and 4 XLR line outputs. It connects to the mixer over a single Cat5 cable.
A second DX164-W or a DX168 can be connected when running in Cascade
mode. Alternatively, a redundant connection can be made to compatible
hardware.
The DX164-W can be operated freestanding, mounted in a floor pocket, mounted
on a wall, or flush mounted in a wall. Different power options are provided to suit
the application.
⚠ This product must be installed by a professional
installer or qualified electrician.
DX164-W requires dLive firmware V1.7 or higher.
Contents
Check that you have received the following with your DX164-W unit:
• Optional gland module (part number 004-1097)
• Mounting frame (AH11504)
• 6x M4 6mm T20 screws (AB2921)
Connection
Redundant mode – to compatible hardware only
Cascade mode – add second DX164-W or DX168
dLive S Class
Surface / MixRack,
DX Hub (x2), or DX
Link card
DX A
DX B
dLive Surface /
MixRack, DX Hub,
DX Link card, or
SQ
DX A
DX A
DX B
DX164-W User Guide AP11446 Issue 2
Top panel and power options
DX A EtherCon port for connection to the mixing system. The cable
carries the audio signals as well as preamp control and system status data.
DX B EtherCon port for daisy chaining of a second unit or cable
redundancy.
DX B mode switch Switch to Redundant for 2 cable connection to
compatible hardware e.g. dLive S Class or DX Link card. Switch to Cascade for
connection to a second DX164-W or DX168 unit.
DC 12V Input Can be used instead of AC mains to power the unit
where adequate DC distribution is provided in a building. Can also be used as
a backup power supply in case of mains failure.
Mains power input The built-in universal PSU accepts voltages from
100 to 240V AC 50/60Hz. A module with IEC inlet is fitted by default. An
optional module is provided for permanent installation, with knockout holes to
accept a cable gland.
⚠ Replacement of the IEC module and mains wiring for
permanent installation must be performed by a qualified
electrician. See instructions later in this guide.
DX164-W User Guide AP11446 Issue 2
Front panel
Input sockets Balanced XLR mic/line inputs with +48V Phantom Power
indicator. The preamps are built into the DX164-W and their Gain, Pad and
+48V are controlled from the mixer via the DX link.
The +48V indicator detects voltage at the socket whether supplied by the
DX164-W or received from an external source.
Output sockets Balanced XLR outputs operating at nominal +4dBu
level.
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