CONNECTIONS

The SRS1500 has two female XLR inputs that accept a balanced line-level signal. When connecting a balanced signal, be sure it’s wired per AES (Audio Engineering So- ciety) standards:

 

 

 

 

 

 

 

 

 

XLR

Hot (+)

 

 

Pin 2

Cold (–)

 

 

Pin 3

Shield (Ground)

 

 

Pin 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Balanced XLR Connectors

There are also four male XLR connectors labeled THRU (FULL RANGE OUTPUT) and HIGH PASS (MID/HIGH FREQ) OUTPUT. These are also wired according to the AES standard.

The THRU output connectors allow you to connect more than one SRS1500 to your system. Simply plug the signal source (i.e., mixer output) into the first speaker’s FULL RANGE INPUT jacks, and patch that speak- er’s THRU jacks to the next speaker’s INPUT jacks, and so on, daisy-chaining multiple speakers.

The THRU jack is wired straight from the FULL RANGE INPUT connector — there is no electronic circuitry between — so the signal coming out of the THRU jack is exactly the same as the signal going in.

The HIGH PASS OUTPUT jacks provide a line-level signal of the frequencies above 120Hz that you connect to a pair of active speakers (or to a stereo amplifier powering a pair of passive speakers). See the diagrams on the rear panel of the SRS1500 for additional connection information.

If connecting an unbalanced signal to the SRS1500 balanced input, be sure that the signal high (hot) connection is wired to Pin 2 and the unbalanced ground connection is wired to the low and the ground connections of the balanced input (Pins 3 and 1). If there are ground-loop problems, try connecting the unbalanced ground connection only to the input low connection (Pin 3), and leaving the input ground connection disconnected.

Unbalanced Male XLR Connector

PLACEMENT

The SRS1500 subwoofer is designed to sit on the floor or on sturdy stands.

A socket is provided on the top of the SRS1500 for mounting the Mackie SRM450 active speaker. Use the optional Mackie speaker mounting pole to mount the SRM450 on the SRS1500 (see Hookup Diagram on page 5).

As with any powered components, protect them from moisture. If you are setting them up outdoors, make sure they are under cover if you expect rain.

6