Question about Mackie SRM-450 System

1 Answer

Loss of power & clarity

The srm450 mackie's seem to have lost both power & clarity. I have taken them to the authorized repairer & they cannot find anything wrong with them. I compared them to another pair of 450's & the difference is very noticable

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

Do they sound good at low level? If so i would suspect the drivers may be a bit smoked.Some drivers will still work after being overheated but exhibit a lowered impedance to the driving amp and do all sorts of bad things including possibly burning up the driving amp.If they are still under warranty,bring them back and tell them they better check them out again cause your 12 year old cousin can tell they are in distress and if they still can't find anyhting wrong maybe you can get him a job.But seriously,give them the smell test.Put your schnozz near the center of the woofer cone, then tweeter center to see if you detect any burnt smell at all.even a little bit can be a clue that there is a big prob.Next step is to remove the suspect from the case and give it a feel.while you are doing this,give the amp circuitry a quick visual for anything burnt or obviously dammaged.The smell test is really good for the amps as they get REALLY smelly when they are in trouble.Try to gently move the cone inward and then outward.NOT hard enough to damage it but what you are looking for is any slight drag or uneven cone movement like a slight scraping.If you have another decent speaker that is similar in size(not really necessary) and quality(i consider this very necessary),try the substitute to see if you are on the right track.What we are trying to do is narrow the prob down to the actives(amp/crossover circuitry) or passive(actual speaker mechanisms).Actives need a tech.Passives need you to get a replacement speaker and install it yourself.may be just a woof or maybe a woof and a tweet or whatever.remember,you need to listen closely(this is a mental process) to decide if what you hear(physical process) is good audio.Take it from there Sparky!This process is good for any active speaker.

Posted on Feb 25, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Mackie 450 thermal light on no sound


could you give some more info? what are your running into your speaker? and how exactly is it run? once we weed out common issues like switched up cables, than we can move on to internals.
which on that note, I think this is a manufacturing defect


here's a link to the schematic if you want to go poking around the circuits.....


http://www.mediafire.com/?myion3zkxn3


or
http://www.mediafire.com/file/myion3zkxn3/Mackie-SRM450 actspk.pdf



take a resistance test between D56 pin1 and Q35 pin2. thats where this issue seems to be stemming from from ones ive worked on. I have know it to be an internal track that was broken and needed to be glued back down. definitely not the first time ive seen this....

Dec 07, 2012 | 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

The blue light on my Mackie srm450 speaker is not working.Can I get a replacement part.Thanks Sandy


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.

Jun 11, 2010 | Mackie SRM-450 System

1 Answer

I have dropped one of my mackie srm450 speakers and i need a replacement woofer.. where can i get one?


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

Feb 06, 2010 | Mackie SRM-450 System

1 Answer

When turned on: srm450 has no sound, but all leds (power and signal) is normal. If I turn the volume up (near maximum) , the srm450 sound is activatet again , and peforms normally. I then turn volume down...


1 TAKE THE MAINS PLUG OUT
2 Unscrew the fixing screws on the back. (just the outside ones)
3 Take the back off and turn the amplifier circuit board to face you.
4 About 2" from the left and about 4" from the bottom you will see a sort of tab. pull it off gently and widen the 2 prongs slightly.
5 Put the jumper tab back on and re fit the amp.

Dec 26, 2009 | Mackie SRM-450 System

2 Answers

Mackie SRM450 won't power on.


I am also getting the same problem. Complete power off. Was working like a dream. No given signs that this would cut off. Sent this for repair, the current quote is £160.00 for the amp module to be repaired. I was hoping to find somewhere that can supply, repair, or change for much less; considering that It is worth est £250.00 second hand!

Jun 06, 2009 | Mackie SRM-450 System

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

Not finding what you are looking for?
Mackie SRM-450 System Logo

340 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mackie Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

4678 Answers

Iron
Iron

Level 3 Expert

3018 Answers

Govind Deepak Kumar
Govind Deepak Kumar

Level 2 Expert

167 Answers

Are you a Mackie Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...