Nady Audio DSP 256 Owner's Manual - page 7
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3. Using Mixer Inserts
If your mixer has Channel Insert jacks, you can “insert” the DSP 256 in the signal path
of that channel after its input amplifier (and EQ on some mixers) and before its fader.
Consult your mixer manual for understanding the proper way to utilize your DSP256 in
this application. It will also provide the necessary wiring information for connecting your
unit. After you’ve made the proper connection, set the desired “wet/dry” balance using
the DSP 256’s MIX (8) control. The INPUT (7) and OUTPUT (9) controls of the DSP 256
should be set for unity gain so that the volume remains approximately the same when
the Insert jack is either plugged in or removed from the mixer.
4. Using a Mixer’s Master Outputs
If you want to add effects to everything on the mixer, connect the DSP 256 between the
mixer’s outputs and the amplifier’s or recording machine’s input. Connect the Left and
Right Master Outputs of the mixer to the LEFT/MONO (1) and RIGHT (2) inputs of the
DSP 256. Then connect the LEFT (3) and RIGHT (4) outputs of the DSP 256 to a stereo
amplifier or to two input channels of another mixer (for sub-mixing applications).
AC Power Hookup
After making your connections, follow this procedure:
1. Before turning on the DSP 256 power, check that:
• All connections have been made correctly
• The volume controls of the amplifier or mixer are turned down
LEFT INPUT
INSERT
LEFT OUTPUT
LEFT
LEFT OUTPUT
Power Amp
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2. The DSP 256 comes with a power adapter suitable for the voltage of the country it is
shipped to (either 110 or 220V, 50 or 60Hz). Insert the Power Supply Adapter into the
9VAC (5) input on the rear panel of the DSP 256 and plug the adapter into an AC outlet.
The Power On LED (11) will illuminate, and the unit is ready for operation.
3. Turn on the power of the connected amplifier or mixer and adjust their settings as nec-
essary.
(Note: Nady Systems, Inc. cannot be responsible for problems caused by using the DSP
256 or any associated equipment with improper AC wiring or voltage.)
(Note: The DSP 256 has no need for safety grounding as it has no power supply ground.
It is powered by an external low-voltage adapter with an internal transformer isolated for
safety. As with most unbalanced equipment, signal ground is connected to chassis
ground at the input and output jacks. Be aware that if you rackmount the DSP 256 with
metal rack railing it would share a common ground with the other equipment in the same
rack. If you develop hum or noise problems with this unit, you should switch to non-con-
ductive rack rails or rack isolators to avoid ground loops.)
Line Conditioners
Although the DSP 256 is designed to tolerate typical voltage variations, the AC line may
contain spikes or transients that can possibly stress your gear and, over time, cause a
failure. The Nady Audio PCL-800/810/815 Power Line Conditioners offer advanced filter-
ing and are the most cost effective way to ensure quietest operation of your DSP 256.
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