Instruction manual

ManualsBrandsMackie ManualsAudio MixerSound Palette Series SP2400

SP2400 – 15

AC Power Considerations

Each SP2400 draws an average of 6 amps of AC

line current (@ 120VAC) when fully loaded and

playing music with a relatively high crest factor.

Voltage Conversion

The SP2400 can be configured to operate at

115V AC or 230V AC. See Appendix C for instructions

on how to change the operating voltage configuration.

Thermal Considerations

IMPORTANT: The SP2400 is convection

cooled rather than fan cooled. This design

was chosen to avoid the requirement for

periodic air filter maintenance, and to keep the

insides of the SP2400 clean in dirty environments

(rather than blowing dirty, smoky air into it). Heat is

drawn away from the amplifiers by the heatsinks

and radiated through the cooling vents in the top

cover. When installing the SP2400, be sure to allow

sufficient air space around the top and rear of the

amplifier to allow adequate cooling for the

heatsinks. If installing in a rack,

leave at least one

rack space above and below the SP2400 for a vent,

and at least 6 inches behind the chassis to allow

proper ventilation.

If installing three or more SP2400s in a rack, use a

fan in the rack to move cool air in and warm air out of

the rack's enclosure. It may be necessary to provide

a cool air intake fan at the bottom of the rack, and a

warm air exhaust fan at the top (see Figure below).

Note: Though it is not required, it is

recommended that a warm air exhaust fan be used

when two SP2400s are installed in the same rack.

If the amplifier should overheat, a thermal switch

is activated that disengages the speaker outputs,

allowing the heatsinks to cool down. The

OVERLOAD

indicator on the front panel will also

light to show that a protection circuit has been

activated. Once the amplifier has cooled to a safe

operating temperature, the thermal switch resets

and reactivates the speaker outputs. If this should

occur, identify the cause of the problem and take

corrective action (i.e., provide better ventilation,

install a fan in the rack to move more air, make sure

the amplifier is not overloaded with too low of a

load impedance).

1U Vent Panel

2U Vent Panel

(or Optional Intake Fan)

2U Exhaust Fan Panel

Cool Air

Intake

Cool Air

Intake

Cool Air

Intake

Cool Air

Intake

Cool Air

Intake

Hot Air

Exhaust

Summary of content (14 pages)

PAGE 1
AC Power Considerations Each SP2400 draws an average of 6 amps of AC line current (@ 120VAC) when fully loaded and playing music with a relatively high crest factor. Voltage Conversion The SP2400 can be configured to operate at 115V AC or 230V AC. See Appendix C for instructions on how to change the operating voltage configuration. Thermal Considerations IMPORTANT: The SP2400 is convection cooled rather than fan cooled.
PAGE 2
4. Operation 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.
PAGE 3
Paging Mic Control The PAGING MIC CONTROL connector is provided to connect a manual paging switch. Connect a normally-open switch between GND and ZONE A (to page in Zone A only), GND and ZONE B (to page in Zone B only), or GND and ALL CALL (to page over the entire system). The voiceactivated (VOX) control for the Paging Mic still operates in both zones when the switch is off.
PAGE 4
Using INPUTS 1-4 Connect the program sources to Inputs 1-4. These could include a CD player, tape deck, tuner, satellite feed, TV audio, jukebox, or an audio feed from a live band. All four program inputs use unbalanced RCA connectors and accept stereo linelevel signals. Note: The Input Select buttons are labeled 1 through 4 on the front panel. The spaces below the buttons are sized to accept 1/4" labels from the Brother P-Touch Electronic Labeling System.
PAGE 5
Using the 3-Band EQ This equalizer is applied to the selected program source from Inputs 1-4, whether it is a local source or remote source (via the EXPANSION IN/OUT bus). This equalizer does not affect the paging mic or the local MIC/LINE INPUTS, which each have their own 2-band EQ controls. Note 2: When the manual switch is off, the voice-activated (VOX) control for the paging mic is still operational.
PAGE 6
Using the AMBIENT MIC The ambient mic is an optional accessory (MT3100) that is available for the SP2400, which is used to sense the ambient noise level in the room. Set the AMP ADDRESS switch #8 up to enable the ambient mic, otherwise leave the switch down. The ambient mic provides an “ear” for the microprocessor to gauge the ambient noise in the room and adjust the gain of the paging mic accordingly. When the background noise is relatively quiet, the paging mic gain is at its lowest level.
PAGE 7
Press the OFF button to select the MIC/LINE INPUT. Adjust the MASTER VOLUME control by pressing the up/down buttons so the meter indicates a level at the “0” mark. With all music sources off, speak into the mic with a normal voice. Adjust the MIC/LINE INPUT GAIN control with a non-conductive alignment tool so that the meter indication is near the "0" mark. This provides the best signal-to-noise ratio for the mic and insures that its relative volume will be equivalent to the program sources.
PAGE 8
Using the RS485 Connection Each amplifier is equipped with an RS485 connection. These connectors are linked internally, so if both amplifiers have the same AMP ADDRESS assignment, the Input Selection and MASTER VOLUME buttons track each other, since they are assigned to the same zone. One side must have AMP ADDRESS switch #6 in the Master position (up), and the other side in the Slave position (down).
PAGE 9
5.
PAGE 10
SP2400 Specifications Power Amplifier Section EQ Continuous Sine Wave Average Output Power, both channels driven: 3-Band Program EQ: High Shelving: Mid Peaking: 200 watts per channel into 8 ohms from 20Hz to 20kHz, with no more than 0.01% THD 100V rms per channel into 50 ohms from 20Hz to 20kHz, with no more than 0.1% THD (J2/J3 in 100V position) 70V rms per channel into 25 ohms from 20Hz to 20kHz, with no more than 0.
PAGE 11
Disclaimer Mackie Industrial continually engages in research related to product improvement, new materials, and production methods. Design refinements are introduced into existing products without notice as a routine expression of that philosophy. For this reason, any current Mackie Industrial product may differ in some respect from its published description, but will always equal or exceed the original design specifications unless otherwise stated.
PAGE 12
APPENDIX B: Button Modes SP2400 Button Modes Press 1 on Power Up: AGC Reset • Press and hold the Input 1 button while powering up the SP2400. • Release the Input 1 button and the Input 1 LED blinks. This resets the AGC for all four inputs to the default setting (–5 dBu). • Press the Input 1 button again and the OFF LED lights. This indicates that the AGC circuit is turned off. • Press the Input 1 button again and the OFF LED turns off. This indicates that the AGC circuit is turned on.
PAGE 13
APPENDIX C: Voltage Conversion CAUTION: These servicing instructions are for use by qualified personnel only. To avoid electric shock, do not perform any servicing other than that contained in the Operating Instructions unless you are qualified to do so. Refer all servicing to qualified service personnel. Make sure the power is off and the power cord disconnected before removing the top cover to gain access to the inside of the SP2400.
PAGE 14
SP2400 Music Controller Mackie Industrial 16220 Wood-Red Rd. NE • Woodinville, WA 98072 • USA 888/337-7404 • Outside the U.S.: 425/487-4333 Fax: 425/487-4337 • www.mackieindustrial.