ALESIS DEQ230D User Manual
Page 25
Connections
2
23
Connecting to the inserts on an instrument
amplifier
Unbalanced I/O
The insert sends on a guitar or bass amp are usually labeled
"effects send and return" or "insert send and return." This allows
your instrument to be boosted to line level before the signal is sent
to the equalizer, processed, and returned to the power amp.
Another method would be to insert the DEQ230 between the
preamp and the power amp, if you are using a two-piece system.
You should never put the equalizer between the power amp and
the speaker, as the high-powered levels created by the power amp
will damage the unit.
Connecting to equipment with XLR inputs
and outputs
If you are connecting the DEQ230 to a product with XLR
balanced inputs and outputs, you will need to convert this signal to
a TRS balanced connector. Make sure that pin 2 of the XLR
connector is connected to the tip of the TRS adapter, and pin 3 is
connected to the sleeve.
Connecting to equipment with S/PDIF
inputs and outputs (DEQ230D only)
The DEQ230D has the added capability of receiving and
transmitting its audio signal in the digital domain. This is done
through a pair of coaxial connectors (also known as RCA jacks)
found on the rear panel. The jacks are labeled S/PDIF In/Out:
each carries two channels of audio, so both Channel A and
Channel B are handled by a single cable in each direction.
Using the S/PDIF jacks to connect to an external device such as
the Alesis MasterLink is very easy, because the DEQ230D will
automatically switch over to the S/PDIF input when it senses that
a valid digital signal is present.
Don't use line transformers!
Many XLR-to-1/4" adapters
sold at electronics stores are
NOT adapters, but
transformers (and very low
quality transformers at that).
Don't use these on the output
of the DEQ230—they're
unnecessary and generally
sound awful because they
don't have the headroom to
handle the DEQ230's output.
Get a hard-wired adapter or
cable from your professional
audio dealer, or make one
yourself from components.