Distortion crackling mackie 450 speaker - Mackie SRM-450 System

SOURCE: SRM 450 Mackie

1)Clean the heat sinks on the amp on the back of the speaker,
2) carefully remove the amp from the rear of the cabinet and look for 'crispy critters' on the circuit board. If you see 'um, either take the amp to a service center, or go to your dealer and get him to order you a new one.
3) if you're goin' thermal, either get higher powered speakers, or tune it back a bit with these. I have a set that has run years in a dance room with no problems. If you are stretching the system to cover a bigger audience, think about another pair.

SOURCE: MACKIE SRM 450 IT IS FAR TOO BASSIE,IT SOUND

Contact mackie directly. They sell replacement drivers for these units.

Dan

SOURCE: opening mackie 450

with a haxspanner

SOURCE: Mackie SRM-450 tweeter distorts sound

I wish to change access to the diaphragm

SOURCE: hello there i have a

The most common cause of this is a blown horn. A replacement can be ordered from Mackie directly. Remove the screws that hold the plastic horn in place. At the rear of this part will be the tweeter assembly that unscrews from the horn. This needs to be replaced.

Another possibility is that the tweeter driver has broken from the horn itself and is inside the cabinet. Remove the horn and you may find that the aluminum part has broken. Replace the horn which comes with that part and you should be fine.

Dan