Aurora Audio Absolute GTM822 Instruction Sheet

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Introduction:

Well done for purchasing a hand-built, eight channel, eight bus Absolute line mixer. The Absolute line of

small mixers differs from our normal Class A discrete transistor products because we don't want these mixers

to add any artifacts to the sound of the GTM822. We want the sound to be as pure as possible... hence the

term Absolute.

Carefully remove the unit from the custom foam packing. The power supply works from any ac voltage from

85 volts to 240 volts, 50 and 60Hz.

All channels and bus output connections are via TRS 1/4" jack sockets. There are also two unity gain 25 pin

D-Sub connectors, one for the bus outputs and the other a direct input to the eight mix busses. These

connectors are used when cascading two or more 8 x 8 Absolute line mixers together.

There are two inputs per channel marked "PRE INPUT" and "POST INPUT". The PRE INPUT normally

wires to the GTM822's channel pre-fade insertion send jack and the PRE RETURN jack is in parallel with

the PRE INPUT jack and intended as a loop through to a patch bay so that the GTM822's insertion path is

retained. The POST INPUT is wired to the GTM822 channel output XLR.

The PRE/POST switch on the front panel selects either of the inputs although, obviously, they could be used

with any two sources and not necessarily the GTM822. The unit was designed to enhance the features of the

GTM822 but could also be used as a stand-alone device.

Table of Contents

Do you have a question about the Absolute GTM822 and is the answer not in the manual?

Page 1 Class A discrete transistor products because we don't want these mixers to add any artifacts to the sound of the GTM822. We want the sound to be as pure as possible... hence the term Absolute.
Page 2 The GT8 x 8 Absolute has a wide number of uses and applications. It was designed originally to provide the GTM822 with eight more mix busses for effects sends, etc. As it has the option for pre-fade inputs and stereo panning, it could also be used as an eight input, four stereo output, cue headphone mixer.