Question about Mackie SRM-450 System

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What size is mackie srm450 fuse

What size is the fuse

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Posted on Jan 02, 2017

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SOURCE: 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.

Posted on Mar 05, 2009

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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

  • 454 Answers

SOURCE: I have dropped one of my mackie srm450 speakers

If the cone is damaged, it is possible to get it 're-coned'. If you can find a shop that does this type of speaker repair.

Otherwise, call around music stores (by that I mean places that sell musical instruments and PA gear) and see if they sell/sevice Mackie. If you are comfortable taking the old woofer out, just order the part and DIY.

It is not critical that the woofer is an exact replacement (doesn't have to be a Mackie speaker), the important things are:

1) it fits and screws back into the speaker cabinet
2) it is electrically similar to the original (same impedance 4 ohm or 8 ohm) and wattage rating

Posted on Feb 06, 2010

SOURCE: The blue light on my Mackie srm450 speaker is not

Hi,
yes you can replace part.But you will need to take it to a good technician or take itto the company to avoid more fault.

Take care.

Posted on Jun 11, 2010

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1 Answer

Replace fuse on the SRM450


You just take out all the screws from the back and remove it carefully, there you'll find fuse near by the power plug.
Check amperage (I think it is 4Amp fuse) and replace it

Oct 20, 2014 | Mackie SRM-450 System

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

Mackie srm450 v2 no top end.


Check the aspect of the crossover filter for the speakers, inside. Sometimes they fry.

Apr 14, 2014 | Mackie SRM-450 System

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

What size internal fuse on mackie srm450v2 speaker


Mackie say this is not a user service part. If the fuse has blown there is probably a fault in the unit being their reasoning. I know for certain they tend to blow for no apparent reason so it is worth giving it a go. They are 5 x 20 Slow or time fuses. 7A for 120V and 4A for 230V

Jul 13, 2011 | Mackie Srm450v2 Srm V2 Active Speaker...

2 Answers

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.

Jul 24, 2009 | Bob Mackie SRM350 Main / Stereo Speaker

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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