Mackie Sound Palette SP1200 Instruction Manual - Introduction

SP1200 – 3

Audio expansion connectors are provided on the

rear panel for connecting multiple SP1200s, with

shared audio via balanced busing. Each of the four

program input signals are internally balanced and

can be independently assigned to the balanced bus

with internal assignment switches. The LOCAL/

REMOTE switches on the rear panel are provided for

selecting either local or bus operation for each

input. The paging mic and paging control signal are

also carried over the expansion bus.

A wired remote control is available that can be

used to select input sources and adjust volume levels

for the zone. The amplifier can be programmed with

a unique address, and two amplifiers with the same

address can be controlled by a single remote when

interconnected by means of the RS485 port. The

remote control fits into a double-gang electrical box

with a Decora

®

-style faceplate.

In addition, the RS485 port can interface with third-

party control systems, or a PC-compatible computer

loaded with the SPLinker software application for

computer control of up to 32 zones in a system.

An internal option slot is provided for installing an

optional DSP card (SP-DSP1). It provides additional

ambient noise sensing for the Program Inputs using

the optional ambient microphone. As the noise level

in the room increases, the gain on the selected

source gradually increases to keep the music audible

above the background noise.

An RS232 port (COMM PORT) is provided on the

front panel for connecting a Palm™ Handheld or

PC-compatible laptop computer for configuring the

optional DSP card.

Key Features

•

Single Channel Controller/Amplifier

•

4 Stereo, Line-Level Program Inputs

•

1 Page Mic Input

•

1 Local Mic Input

•

Digital Cross-Fade between Input Sources

•

200 Watts at 70V and 100V

•

200 Watts at 8 Ohms

•

Transformerless Amplifier Output

•

Ambient Noise Sensing for Page Mic

•

AGC for Music Sources

•

3-Band Sweepable EQ for Music Sources

•

2-Band EQ on each Mic Input

•

Multiple-Zone or Mono Operation

•

Each Zone Addressable (0-31)

•

REMOTE connection for optional Remote Control

•

RS485 Port for Third-Party Control Systems

2.

Introduction

The SP1200 is a single-channel version of our

popular SP2400 dual-channel microprocessor-based

music controller. Having a single 200 watt power

amplifier, it's designed for use in a variety of

installations requiring high performance, flexible

features, and ease of use. Examples of such

installations are retail stores, restaurants, bars, and

theme venues. The SP1200 provides one output

that can be used for single-zone coverage. Four

stereo line-level inputs are provided on the rear

panel, along with a paging mic input and two local

mic/line inputs.

The program input sources can be independently

assigned to the zone with the Input Select buttons

on the front panel. The boxes under the Input

Select buttons are sized to accept Brother P-Touch

®

labels. Each of the four inputs has an integral AGC

circuit to automatically compensate for level

differences between the input sources. Input 1 has

a buffered line-level output that may be used for

music-on-hold or other external applications.

Program Priority can be assigned to Input 4 for use

with a jukebox or alternative paging configurations.

When a signal is detected at Input 4 with priority

activated, it overrides any other program source

assigned to that channel or zone.

Each of the four input sources can be either

stereo or mono, although output from the SP1200

is a combined mono signal of both left and right

inputs. The zone has a 3-band program EQ with

sweepable mid for tuning the four program sources.

Each mic input has a 40 dB gain switch for use

with either mic or line-level signals as well as a

variable gain trim, phantom power switch, and a two-

band EQ.

In addition, the zone has a variable VOX control

for adjusting the trigger threshold of the paging mic's

ducking circuit. The paging mic operates in the zone

when voice-activated. However, it can be assigned

to operate over the entire system when manually

operated with a switch connected to the PAGING

MIC CONTROL connector.

The zone is equipped with an input for an

optional ambient microphone that can sample the

ambient noise level in the room. The microprocessor

then adjusts the paging mic gain in the zone to

compensate for increased or decreased noise

levels. This way the paging mic is always audible

above the background noise.

The Master Volume Up/Down buttons adjust the

overall level that is routed to the PRE OUT connector

(and the AMP IN connector when the jumper is

installed). Internal jumpers are provided for configuring

the amplifier outputs for 70V, 100V, or 8-ohm operation.

Part No. 0001207  Rev. A  1/02

© 2002 All Rights Reserved.  Mackie Industrial.  Printed in U.S.A.