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Mackie srm450 vi makes a cracking sound from the horn put a new diaphram in still the same,worked fine before.told it meet be the high frequency amp.can this be fixed.if so where,i live newcastle.than

Mackie amp problem

Posted by Anonymous on

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JULIANFIX
  • 975 Answers

SOURCE: BX8A studiophile monitors distortion problem

it could be a loose connection or the cone is cracked inside , the only way to find out is to open and take a look inside ,check the connections , the 2 wires from box to speaker, ALSO CHECK where the cone meets with the magnet , hope this helps AJ

Posted on May 14, 2008

  • 71 Answers

SOURCE: I need to change a fuse in my Mackie SRM450

The fuse on these is not a user serviceable item. write to Mackie Designs, Service Dept, 16220 Wood-Red Rd NE, Woddinville, WA 98072
Fuse is inline behind the triad AC cord jack.

Posted on Jul 24, 2009

  • 4 Answers

SOURCE: Mackie SRM450 won't power on.

I have the same issue... it somehow appears that no power is present at Q34 / Q35 on the schematic but I dont know how to trouble shoot it!

Posted on Oct 29, 2009

  • 1 Answer

SOURCE: what kind of tool is needed to open mackie srm450

12" phillips screw driver total of 16 or 17 screws on back, then open like a **** its easy!

Posted on Nov 07, 2009

  • 1 Answer

SOURCE: Mackie SRM-450 tweeter distorts sound

I wish to change access to the diaphragm

Posted on Jun 16, 2010

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My Mackie HD1531 has a high pitched whistling sound, all other speakers work fine with the same power connection and desk connection. It whistles regardless of whether it has a sound input or not.


Sounds like a problem with the horn amp in that cabinet. This is not a user fixable problem and needs to go to the shop. Here is a link to the Mackie support page where you can find a link to the repair shop list.
Mackie Tech Support

Feb 19, 2015 | Mackie HD1531 3-Way 15" HD Powered PA...

1 Answer

Mackie srm450 no output


Probably the internal fuse or the amp blown. If these are the MK1 they are notoriously unreliable and you can't even change the fuse without stripping the thing down. Sound OK when working but don't expect them to keep working if you want to drive them hard. I know of some people who have changed them to passive and put a crossover in them (I suppose it at least means you have a speaker but defeats the object of active) There are plenty of independents who fix these as they are so problematic but if you can get a pair of decent speakers. The MKII is supposed to be much better but still has some issues with reliability.

Jun 30, 2014 | Mackie SRM450 PA Speaker

1 Answer

Blown Mackie srm450 woofer makes sound but rattles when turned up


I need more information, but some similar event i remember with SRM450 and was the paper cone on the speaker, not visible from outside but inside was severely cracked all round, hope this helps.

Apr 23, 2012 | Mackie SRM-450 System

1 Answer

ONLY GETTING MUFFLED SOUND FROM ONE OF MY MACKIE SRM V2 SPEAKERS,HAVE CHANGED DIAPHRAM BUT PROBLEM STILL THERE


If you've changed the tweeter and the sound is still muffled the fault is with the HF amp, or the cross-over. You will have to send the amp assembly for repair as it is all surface mount components in there -nothing you will be able to fix yourself. Sorry for the bad news!

May 04, 2011 | Mackie Srm450v2 Srm V2 Active Speaker...

2 Answers

Mackie SRM-450 tweeter distorts sound


I'd just order a new diaphragm and see if that's the problem before any other dismantling. If that's not the problem, I'd take it to a certified repair shop. The fact that it's still working but not producing certain frqs,tells me you won't be able to see the problem with the naked eye.

Feb 19, 2010 | Mackie SRM-450 System

1 Answer

Mackie SRM450 speaker keeps making a 'popping' sound


First thing is to verify that a ground loop from your driving equipment is not causing the problem. Easiest way is to drive it with a BATTERY operated little CD player so no ground loop could exist.

Verify that your power cord is in tight and try another cord to verify it is OK.

Beyond this, service is probably required. If unit is out of warranty, you could have a person open it up to see if anything is obvious.

A possible proble is bad connectors or worse, a cracked circuit board.

Analyzing if noise is from both the woofer and high range speaker is a first step.

Aug 31, 2009 | Music

1 Answer

Repair a Mackie SRM 450 Speaker The Speaker is making a crackling sound while playing. The sound keeps cracking up.


You probably need to replace the diaphragm. The diaphragm is located behind the back cap. Simply remove the back cap, remove the diaphragm, clean the voice coil gap with a piece of masking tape, install a new replacement diaphragm, reinstall the back cap. That it!
You can see videos on how to replace diaphragm at this link.
http://www.soundspeakerrepair.com/speaker-parts-c/INST/Installation+Instructions
You can buy a new Mackie SRM450 diaphragm at this link.
http://www.soundspeakerrepair.com/speaker-parts-cp/SRM450-DIA/DIA-Mackie/Mackie/

Jul 20, 2009 | Music

1 Answer

Mackie srm450 the tops on one speaker is not working


Hi There, This is quite a common problem with the Mackie SRM450's. You will find that you need to replace the diaphram on the top. This can be done by removing the 16 screws from the back of the Mackie (quite a long pain in the **** job) with a long handled cross head screw driver.

Once you have done this you should then remove the hex bolts from the back of the drive where the black and right terminals are. When this is done, pull off the cover and swap the diaphram out. With the new diaphram in place reverse the steps above but before you screw the back on, power it up carefully and check the sound is now working.

If the diaphram keeps going eg every 3 to 4 months then you will need to change the driver which is quite expensive to do. If you need spares and are based in the UK, contact LondonSpeakerShop.com who carry spare parts or can undertake the repair.

Hope this helps.

Feb 22, 2009 | Mackie SWA1501 Subwoofer

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