12. Servicing — The user should not attempt to service the SP2400 beyond those means described in this operating manual. All other servicing should be referred to the Mackie Service Department. 13. To prevent electric shock, do not use this polarized plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure.
Only one source may be selected at a time. These are non- priority inputs. However, Input 4 can become a Program Priority Input by setting the AMP ADDRESS switch #7 UP. In this mode, when a...
Page 5
The U-shaped jumper wire should remain installed between the PRE OUT and AMP IN jacks for normal operation. AMP IN is an unbalanced RCA jack that accepts a line-level signal. See PRE OUT above.
Note: This illustration demonstrates a typical stereo application using a single SP2400. Each channel is assigned the same address with the AMP ADDRESS switches (Zone A is Master and Zone B is Slave). This allows the front panel buttons, and connected remote controls, to control both sides.
Page 7
SP2400-1 SWITCH SETTINGS 1 2 3 4 ZONE A 1 2 3 4 5 6 7 8 ZONE B 1 2 3 4 5 6 7 8 Ambient Mic (MT-3100) 1 2 3 4 5 6 7 8 1 2 3 4 INTERNAL BUS ASSIGN SWITCHES SP2400-2 SWITCH SETTINGS...
Page 8
OFF button is pressed, the Local Mic is heard in both zones. When Inputs 1-4 are pressed, the selected input is heard in both zones. Zones A and C are assigned the same AMP ADDRESS, and connecting the RS485 terminals between the two zones allows the front panel buttons and the remote controls to affect both zones.
Page 9
Zones A and B, to be used when the divider is removed between the two zones. Both Zones on the SP2400 are assigned the same AMP ADDRESS, so when “OFF” is selected on the SP2400, the DX8 signal at the Mic/Line Input is routed to the SP2400 outputs. The local input sources (Tuner and CD 5-Disc Changer) or the Global Background Music via the Expansion I/O can be routed to the SP2400 outputs by selecting 1, 2, or 4 on the SP2400 front panel.
D: Room Combining—Zones In this example, a dividing wall can be extended to divide the room into two. The Mackie Industrial DX8 is used to route independent source selections to each zone (Preset 1 on the Remote Controls), or common input source selections for both zones (Preset 2 on the Remote Controls).
If there is a jukebox, use Input 4 in Program Priority mode (set the AMP ADDRESS switch #7 UP to activate). When a signal appears at Input 4 it overrides the selected Input source.
Page 12
Pin 10 Paging Mic (+) Pin 23 Paging Mic (–) Pin 11 Pin 24 Paging Mic Control Pin 12 –15VDC (w/J2 Installed) Pin 25 +15VDC (w/J3 Installed) Pin 13 Note: There is a 0.5 amp limit on the ±15VDC supply.
Up to 16 SP2400s can be connected together with 32 independent zones (each zone assigned a unique AMP ADDRESS), or up to 32 SP2400s in stereo operation (each SP2400 assigned the same AMP ADDRESS on both sides, with one side assigned Master and the other side Slave).
Page 14
Jumper pins 2 and 3 for 70V or 100V operation Jumper pins 1 and 2 for 8-ohm operation Jumper pins 2 and 3 for 70V or 100V operation SP2400 AMP BOARD C1 C2 C3 C4 C5 C6 100V or 8Ω/250W 70V or 8Ω/150W...
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.
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...
Page 17
Mic gain to compensate for the ambient noise level in the room. Use the supplied Phoenix-type connectors to make these connections. Note: Move the AMP ADDRESS switch #8 UP to enable the ambient mic. See page 20 for more information on "Using the Ambient Mic."...
Program Priority can be activated on Input 4 by setting AMP ADDRESS switch #7 UP. When a signal appears at Input 4, it overrides the other three inputs. When the signal stops, the SP2400 switches back to the previously selected input source, fading it in smoothly.
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.
3100) 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 micro- processor to gauge the ambient noise in the room and adjust the gain of the paging mic accordingly.
Another option that is available is to connect another amplifier into the system. Simply use a Y-cord at the PRE OUT jack to split the signal between the AMP IN jack and the input jack on an external amplifier. LEFT and RIGHT OUTPUTs...
Technical Support to determine if your control system is compatible with the SP2400. Upgrading the Software From time to time, Mackie Industrial will release upgrades for the internal operating software in the SP2400. This can be downloaded from our website (www.mackieindustrial.com) to a PC-compatible...
PAGING MIC (+) INPUT 4 RIGHT (+) INPUT 4 LEFT (+) INPUT 3 RIGHT (–) INPUT 3 LEFT (–) GROUND INPUT 2 RIGHT (+) MACKIE INDUSTRIAL INPUT 2 LEFT (+) INPUT 1 RIGHT (–) SP2400 INPUT 1 LEFT (–) BLOCK DIAGRAM (#01.02.01.DF) TO µP...
> 90 dB below rated power into 8 ohms > 100 dB (A-weighted) below rated power into 8 ohms Channel Separation > 80 dB @ 1kHz Amp Input Impedance 20K ohms Input Sensitivity +5 dBu (1.37V rms) for rated power into 8 ohms...
6. Service Information In the event that your SP2400 should require servicing, please follow these instructions: 1. Call Mackie Industrial Tech Support at 1-888-337- 7404, 8 am to 5 pm PST (Monday-Friday), to verify the problem and obtain a Return Authorization (RA) Number.
APPENDIX B: 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). •...
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 28
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.com...