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Introduction
Congratulations and thank you for purchasing the W Box Technologies 0E-IA1250 12 Channel
Amplifier.
The 0E-IA1250 is, at its core, a twelve channel audio distribution amp....but it can also do so many
other things.
The 0E-IA1250 is a twelve channel audio distribution amp that can be configured for six stereo
4 Ohm/8 Ohm zones (30W/channel @ 8 Ohms; 50W/channel @ 4 Ohms); but it can also be
configured for six stereo 70/100V zones (30W/channel); or three high powered bridged zones(100W
@ 8 Ohms). By the way, the 0E-IA1250 can be configured for any combination of stereo 4 Ohms/
8 Ohms, 8 Ohms bridged and 70/100V zones all at the same time!
And there's more. Each zone can be controlled via IR or RS232 for ON/OFF, Input, Volume/Mute,
Treble/Bass and Left/Right Balance. The RS232 section is bi-directional with an easy to configure
command structure. The 0E-IA1250 can be configured to automatically send zone status updates
or respond to queries to confirm zone status and settings. Commands for volume, treble/bass and
balance can be specific values or step commands depending upon the control application.
The 0E-IA1250 has an Audio Bus IN that can be manually selected by IR commands, RS232
commands or voltage trigger. The voltage trigger will switch a zone to the Audio Bus IN as long
as there is voltage present on the zone Line/Bus Trigger IN. When the voltage is cut, the zone
automatically switches back to the zone Line IN. Great for momentary switching to an audio page on
the Bus IN!
Each zone has a Mute Trigger IN that will mute zone audio when voltage is present on the Mute
Trigger IN. When the voltage is cut, the zone audio output resumes.
Each zone has a 12VDC Status or Control OUT that can be used to activate a zone specific volatge
controlled device or otherwise indicate zone ON/OFF status.
Each zone has a -20dB audio limiter to prevent incidental peaks from becoming consequential
damage.
The 0E-IA1250 features a Remote Bypass switch that allows/blocks IR and RS232 commands from
select zones for zones that are intended to be user controlled or set and not messed with.
Finally, the 0E-IA1250 has a 110~120V/220~240V select switch allowing it to be used just about
anywhere there is AC Voltage.
The 0E-IA1250 is also rack mountable and comes with removable rack ears.
The W Box Technologies 0E-IA1250 12 channel x 50W audio distribution amp...ready for anything...
anywhere.
Please read and follow the instructions in this guide to assure proper installation and maximum
performance of your new W Box Technologies 0E-IA1250.
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