QSC Audio DSP-3 Manual Do Utilizador

The audio inputs and outputs of the DSP-3  use 3-pin “Phoenix”-type (Euro-style) terminal block connectors. These connectors allow pre-

wiring of inputs without any soldering and allow for rerouting of audio inputs by simply interchanging connector locations without the need

for any tools. See Appendix for connector manufacturer’s part number reference.

To connect your signal wire to the terminal-block plug- back the screws out

a few turns to open the wire-clamp, carefully insert the conductors into the proper

location, and retighten the clamping screw.

mm ( 1/4 to 5/16 inch). When stripping the audio cable, be careful not to nick or

cut the conductor strands. After each conductor has been stripped and dressed,

insert it  fully  into the connector and tighten the retaining screw. When stranded

wire is used, carefully twist the conductor strands  together so that when they are

inserted into the connector assembly, no loose strands short adjacent terminals.

Unbalanced  inputs can be used if required. If unbal-

anced audio sources are  used, it is preferable to use  an

appropriate audio transformer (or other unbalanced-to-bal-

anced “converter”) to provide a balanced input to the DSP-3.

If this is not possible, then it is recommended that the negative

terminal and shield terminal be connected to one another with

a jumper wire.

The terminal block inputs on the DSP-3 are electronically

balanced. Balanced  input cables are recommended to mini-

mize noise pick up and prevent ground loops.

With the connector oriented as shown at the right, connect the

positive (+) signal wire to the left-most

Inputs- The audio input can be from one of two sources;  the front-panel DataPort OR  the terminal-block

INPUT connectors.

Do not use both sets of inputs at the same time! Use balanced connections

for the lowest possible noise levels and for minimizing the possibility of hum inducing ground loops.

Outputs- The DSP-3’s post-DSP (processed) audio is output to the rear-panel DataPort AND the terminal-

block OUTPUT connectors.

     The OUTPUT’s can be used for daisy-chaining the processed audio to

additional amplifiers, even when connected to a DataPort-equipped amplifier via the rear-panel DataPort.