SERVICE INFORMATION
If you think your Mackie product has a problem, please check out the following troubleshooting tips and do your best to confirm the problem. Visit the Support section of our website (www.mackie.com/support) where you will find lots of useful information such as FAQs and other documentation. You may find the answer to the problem without having to send your Mackie product away.
Troubleshooting
No power!
•Our favorite question: Is it plugged in? Make sure the
AC outlet is live (check with a tester or lamp).
•Our next favorite question: Is the POWER switch on? If not, try turning it on.
•Is the blue light on the front panel illuminated? If not, make sure the AC outlet is live. If so, refer to “No sound” below.
•The AC line fuse inside the chassis is blown. This is not a
No sound!
•Is the input LEVEL control turned all the way down?
Follow the procedures in the “Quick Start” section on page 6 to verify that all the volume controls in the system are properly adjusted.
•Is the signal source working (and making union scale)?
Make sure the connecting cables are in good repair and securely connected at both ends. Make sure the output volume (gain) control on the mixing console or preamp is turned up sufficiently to drive the inputs of the speaker. You should be able to see the SIGNAL PRESENT LED blink on the rear panel.
•Make sure the preamp or mixer does not have a Mute on, or a Tape or Processor loop engaged. If you find something like this, make sure the volume/gain is turned down before disengaging the offending switch.
•Is the THERMAL LED lit? Make sure there is at least six inches of free space behind the heatsinks. Allow the SRM450v2 to cool off and it will turn back on.
One side is way louder than the other!
•Are the LEVEL controls set the same on both active speakers?
•Check the PAN control or balance on the signal source.
It may be turned too far to one side. If you’re using a stereo signal source, it may be delivering an
•Try swapping sides: Turn off the active speakers, swap the input cables coming from the mixing console, turn the active speakers back on. If the same side is still louder, the problem may be with your active speakers or cables between the mixer and the active speaker. If the other side is louder now, the problem is with the mixer or the signal source.
Poor bass performance
•Check the polarity of the connections between the mixer/preamp and the active speakers. You may have your positive and negative connections reversed at one end of one cable, causing one SRM450v2 to be
As soon as the music gets loud, the SRM450v2 shuts down!
•Be sure that the PEAK LED on the rear panel is not lighting up frequently or continuously.
Remember to wear ear protectors if you get close to an SRM450v2 playing at high levels. When the PEAK LED comes on, the SPL is in a region above 120 dB!!!
•Make sure there is room behind the rear panel to provide sufficient ventilation to the heatsink.
Bad sound!
•Is it loud and distorted? Follow the procedures described in the “Quick Start” section to verify that the levels are set properly.
•Is the input connector plugged completely into the jack? Be sure all connections are secure. It’s a good idea to periodically clean all electrical connections with a
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