XTA DPA40 Owner's manual

XTA Electronics Ltd. Vale Business Park Worcester Road Stourport-on-Severn Worcs. DY13 9BZ England
Tel: [phone] (Intl. [phone]) Fax: [phone] (Intl. [phone]) www.xta.co.uk
Information
DPA40 & DNA40 Amplifiers – How To Use Speaker Backup Inputs
Introduction
It is possible to configure a secondary amplifier as a backup device for use in safety-critical
applications, which will automatically be switched into circuit should there be a failure of the main
amplifier.
Failure could include loss of power, over-temperature protection or accidental remote enabling of
standby.
To use this feature, the backup amplifier must also be an XTA DPA40, an MC2 Delta DSP40, or the non-
DSP equivalent (Delta 40 or XTA DNA40). Do NOT attempt to use another manufacturer’s amplifier or
any Delta/DNA/DPA amplifier that is not fitted with this feature.
DPA40 Connections
Connect the two amplifiers as shown below:

Diagnostic and utility control codes for all units Page 2
XTA Electronics Ltd. Vale Business Park Worcester Road Stourport-on-Severn Worcs. DY13 9BZ En
g
land
Tel: [phone] (Intl. [phone]) Fax: [phone] (Intl. [phone]) www.xta.co.uk
DNA40 Connections:
Connect the two amplifiers as shown below:
Step 1: Connect both amplifiers inputs to the required sources and make sure both amplifiers are
configured the same for routing, and source (analogue/AES/network).
Step 2: Connect speakers up the MAIN amplifier as normal in the required configuration.
Step 3: Connect link cables from the Speakon outputs of the BACKUP amplifier to the Backup inputs
of the MAIN amplifier, being careful to observe the correct polarity on the Backup inputs which are
reversed for channels 2 and 4.
Both amplifiers must remain powered up and out of standby at all times. Should the main amplifier
fail, its output relays will disengage and in doing so, connect the outputs from the backup amplifier
directly to the Speakon speaker outputs via the Phoenix inputs.