Mackie Sound Palette SP2400 Instruction Manual - Operation

SP2400 – 16

4.

Operation

Internal Switch and Jumper Settings

Refer to “Internal Settings” on page 13 for more

information.

• Bus Assign switches are used to assign a

program input source to the balanced expansion

bus. There are four switches for each program input

source: Left (+), Left (–), Right (+), and Right (–).

CAUTION : Never assign more than one

program source to each of the four

expansion bus outputs.

• EQ Bypass allows you to bypass the 3-band EQ,

which is in the Input 1-4 signal path. EQ engaged is

the default setting.

• The amplifier can be configured for 8-ohm, 70V

(default), or 100V operation via eight jumpers on the

amplifier board.

Program Inputs

Connect any stereo line-level signal source to

the Program Inputs 1-4. If you have a music-on-hold

requirement, connect a continuous music source to

INPUT 1. The DIRECT OUTPUT jacks next to INPUT 1

can feed the signal connected to INPUT 1 to the

telephone system.

If you have a need for a priority Program Input

(e.g., a jukebox), connect it to INPUT 4. Move the

AMP ADDRESS switch #7 UP to enable INPUT 4

priority.

Set the 3-band EQ controls to the “U” position

for now (1K for the FREQ control). These can be

adjusted later, if necessary.

Paging Mic Input

Connect a microphone to the PAGING MIC input.

Use either the XLR connector, or the supplied

Phoenix-type connector. Set the PHANTOM and

GAIN +40dB switches to their appropriate positions.

Adjust the MASTER VOLUME up/down buttons so

the meter level is at the “0” mark. Set the GAIN

control so the meter indication is near the “0” mark

when speaking at an average level into the

microphone. See “Setting The Vox Threshold” on

page 19 for more information.

Set the 2-band EQ (LOW and HIGH) to the “U”

position. This can be adjusted later, if necessary.

SP2400 Quick Start

This isn’t a substitute for reading the entire

instruction manual, which is the only way to fully

understand how the SP2400 works. However, the

Quick Start provides a quick overview so you can

get the SP2400 set up and working right away.

Make sure the power switch is off while

setting up and making connections to the

SP2400.

External Switch Settings

• The Paging Mic and the Local Mic have +24 VDC

PHANTOM power switches. Move the switches

down to activate the phantom power if you are

using condenser microphones.

• The Paging Mic and Local Mic also have GAIN

+40dB switches. Leave the switches in the down

position when microphones are connected to these

inputs.

• If you plan on connecting two or more SP2400s

together in a system with the EXPANSION IN/OUT

bus, use the LOCAL/REMOTE switches to select

either the local Program Input source (switches up)

or a remote program source from the EXPANSION

IN/OUT bus (switches down). The odd-numbered

switches (1, 3, 5, 7) select the left inputs, and the

even-numbered switches (2, 4, 6, 8) select the right

inputs.

• If you’re using the SP2400 in a stereo configuration,

move the STEREO/MONO switches up. If you have

a zone configuration planned, leave the STEREO/

MONO switches down (default) to combine the left

and right channels into a mono signal.

• For stereo operation, assign the same AMP

ADDRESS setting to both amplifiers (set the AMP

ADDRESS DIP switch #6 to the Master position on

one channel and to the Slave position on the other

channel). The front panel and remote control panels

will operate both amplifiers when they are assigned

to the same AMP ADDRESS. For example, if you

select Program Input 1 with the Zone A control,

Program Input 1 is also selected in Zone B, routing

the Program Input 1 left signal to the Zone A

(Stereo Left) amplifier, and the Program Input 1

right signal to the Zone B (Stereo Right) amplifier.

• For zone operation, assign different AMP

ADDRESS settings to each amplifier. The front

panel and remote control panels will operate

independently for each amplifier and zone.