Question about Mackie SRM-450 System

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Main Speaker Not Working

Hi, I have a pair of SRM 450 V2's. The main 15? speaker has stopped working. There is no sound whatsoever coming from it. The horn seems to be working fine. I checked the fuse on the board and its not burned. Is the speaker blown? In past experience blown speakers usually sound like crap but you still hear them. Thanks!

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  • Mackie Master
  • 16,043 Answers

IS there a circuit board inside that speaker? You are correct about the general loss of sound quality that usually occurs with speaker failure. Best way to check is with a meter or a scope

Posted on May 11, 2013

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Posted on Jan 02, 2017

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mrwtech
  • 59 Answers

SOURCE: I have a pair of

you have one of two problems.1) the woofer is blown(most likely) or 2) the crossover is fried(rare). Take the woofer out and press on the speaker cone(softly). If there is a scratchy feeling when you move it or if it doesn't move at all, you'll either need a new woofer, or get that one reconed.
good luck.

Posted on Dec 04, 2008

mrwtech
  • 59 Answers

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.

Posted on Dec 05, 2008

  • 4234 Answers

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

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

Dan

Posted on Sep 05, 2009

  • 133 Answers

SOURCE: I have Mackie srm 450 original the speaker

When it goes off, try pressing gently on the speaker membrane (you'll probably need to remove the protective mesh to do that).

If the speaker comes on for an instant or so when you press the membrane, then the cause is a broken braid wire at the back of the speaker (it goes from the connection terminal on the speaker itself to the speaker cone where it is connected to the speaker coil wire and glued to the cone to keep it firmly in place).

If this turns out to be the case, the braid can be resoldered at the point where it is damaged / broken (you need good soldering skills to do it, also the braid needs to be cleaned well which is a bit tricky because of its structure, and solder won't stick to it well if it's not clean).

The solder point should be firm, but as small and short as possible because the braid needs to remain flexible at all times since it moves when the speaker is operating.

An alternative to braid resoldering is to replace the speaker, but there may be speaker repair shops around where you can get it fixed.

The problem may as well be something else, the above is just one of the things that you can check and possibly fix by yourself.

Regards

3rq8 (Triarcuate)

Posted on Sep 11, 2009

Testimonial: "sounds feasible will look into that soon altho away for some weeks yet so cant try immediatly TS"

  • 52 Answers

SOURCE: My srm 450 crackles I

When you you checked the speakers what did you do?

Posted on Sep 01, 2010

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The top part of the speaker stop working, how can I fix that?


Hi, the Transistor that controls the high(tweeter) might be bad.

But first check the fuse inside the speaker if it is still intact before you take any further steps.

Once you check the fuse inside the speaker,and it works fine, that means it will be the transistor that will need to be replaced.

To check for fault, the cross over is at the back side of the speaker where you plugin your speakon connector or jack connector.

Hope that helps..........You can still pass your comment, if any....


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No sound from horn of mackie SRM-450


http://www.youtube.com/watch?v=8jYY3kHj1U0

Apr 04, 2010 | Mackie SRM-450 System

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I have Mackie srm 450 original the speaker


When it goes off, try pressing gently on the speaker membrane (you'll probably need to remove the protective mesh to do that).

If the speaker comes on for an instant or so when you press the membrane, then the cause is a broken braid wire at the back of the speaker (it goes from the connection terminal on the speaker itself to the speaker cone where it is connected to the speaker coil wire and glued to the cone to keep it firmly in place).

If this turns out to be the case, the braid can be resoldered at the point where it is damaged / broken (you need good soldering skills to do it, also the braid needs to be cleaned well which is a bit tricky because of its structure, and solder won't stick to it well if it's not clean).

The solder point should be firm, but as small and short as possible because the braid needs to remain flexible at all times since it moves when the speaker is operating.

An alternative to braid resoldering is to replace the speaker, but there may be speaker repair shops around where you can get it fixed.

The problem may as well be something else, the above is just one of the things that you can check and possibly fix by yourself.

Regards

3rq8 (Triarcuate)

Sep 08, 2009 | Mackie SRM-450 System

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I suspect the unit is in protection mode due to an amp failure.

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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.

Oct 04, 2008 | Mackie SRM-450 System

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