Do Mackies have a problem with stopping all of a sudden?

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DiscoFriend

New Member
I have heard from a person here and there that the Mackie speakers will sometimes just stop working for 20 seconds or a minute or something.

Is this true? Do they have an overheating issue or anything?

I am curious because I notice they have that heat sink on the back that might get hot when in the sun.
 

Bob Dietrich

Active Member
DiscoFriend said:
I have heard from a person here and there that the Mackie speakers will sometimes just stop working for 20 seconds or a minute or something.

Is this true? Do they have an overheating issue or anything?

I am curious because I notice they have that heat sink on the back that might get hot when in the sun.
I have beat on the Mackie SRM-450's relentlessly in very hot sunlit conditions yet have never been able to cause one to go into thermal overload. Yet it seems others can get these speakers to thermal in a nice air conditioned 70* room...can you say abuse?!
 
Yes i guess i beat on mine but nonetheless my SRM-450's have gone into thermal protection a few times and yes they completely stop working. However it has never happened on both speakers at the same time which made it less noticeable to the crowd. IMO Mackies are great for applications where super high SPL isn't your goal and when used within their boundaries a problem is seldom seen. It is when one tries to get a little more out of them or finds himself caught in the moment with the music and the crowd and pushes it a little more that you find one channel crapping out. But again i state it comes from ovredriving the speaker. Hope this helps.
 

Bob Dietrich

Active Member
audiopyle said:
DiscoFriend said:
Do they have an overheating issue or anything?

Yes. The SRM450s have a widely reported overheating issue.

- edited to specify model
From operator error. When operating within design parameters they have no problem. I have used them at very high SPL's all day long and never had an issue...if you run them into distortion they will shut down...thus protecting people from their own actions of trying to destroy a speaker.

Mackie SRM-450 Thermal = Operator Error
 

djrox

Account Closed
..and now you know the issue us dinosaurs have with underpowered active speakers.

Asking the Mackie's to reach super SPL's is like asking your Vespa to earn you respect at Sturgis! Wouldn't be prudent, at this juncture.
 

Bob Dietrich

Active Member
djrox said:
..and now you know the issue us dinosaurs have with underpowered active speakers.

Asking the Mackie's to reach super SPL's is like asking your Vespa to earn you respect at Sturgis! Wouldn't be prudent, at this juncture.
Not sure what you mean by that...if you mean 124dB to 126dB peaks is underpowered then we must agree to disagree. That doesn't indicate an underpowered speaker at all. It indicates this 12" 2 way powered speaker will indeed get quite loud.

What is super SPL's? 130dB+?? If you need super SPL's I would not be looking at a modest 12" 2way cabinet in this price range. Now a KV2 EX 12, sure!

How many 12" 2 way powered speakers can really do 130dB+ long term in the same price category as the Mackie SRM-450?

Use the right tools for the job...and the Mackie has proven itself over the years...and I wonder...if it's truly such a bad speaker then why does everyone want to compare their speakers to the Mackie?? :wink:
 

bjojade

New Member
You can easily overdrive the speakers without ever nearing peak SPL. Send bass heavy music to the speaker, and crank the gain on the super sub frequencies. It will get a heck of a lot hotter, but not get anywhere near your peak. It can then shut down.

Still, you have to know the limits of your gear. The Mackie will overheat and protect itself. Other speakers will also eventually overheat and shut down, however when they do, they aren't coming back on.....
 

romch

Active Member
We have Mackie 450's, 1521's, and 1532's and 1801's and have never ran them to thermal. We take very good care of our speakers and constantly watch them and NEVER clip them. This is why we have every size speaker, so we can match the levels for any given event. If you are running 450's without a sub and use bass heavy music and want them to be loud, then chances are you are asking way too much. Every speaker has its application and it's way too often you see DJ's try to to more than their speakers can handle. Just my 2 cents...
 

bill_smith

MobileBeat Moderator
Staff member
I have a pair that I bought( Excuse me won) from PRODJ in 2000. Never thermalled on me. There is a feature that is activated by engaging a button on the back where they do stay off(but powered up)if there is no signal present.

For the small, medium to large room 2-4 of these guys work great.

If you are trying to shatter glass, cover an entire city block, or recreate the boom car sound, and make the person in the next car over chest reverberate with the sound, These are the wrong speakers.

And how many of you really need to use 120 up to cover the average room. That's pretty loud isnt it?
 
I have used and owned different Makes of the SRM-450’s.

They do have a problem of shutting down when you push on them a bit. They are only a 12’ speaker so you need to remember that and adjust your levels accordingly.

I have a pair of 1532’s that have never had a problem.

My advice is that for small jobs requiring little power the SRM-450’s will get it done, but if you seek something to handle larger crowds get the 1532’s or look into JBL’s.
 

jjsound

New Member
I have a pair of 450s and they have shut down on me. The design should have limiters in them or temp sensors that reduce the gain when too hot but they don't. They just shut down. I used them indoors, no sun factor.

Guitar center sold SRM450 for $500.00 new at Atlantic City DJ convention one year so that is the most anyone should pay new for them. Used prices should be significantly below that.

John
 

Dj Extreme

Dj / VJ / MC
Shut Down...

This has happened to me before, usally the case is that you are running your gain into the red - more often then you should -- which is never, if you have proper gain control then you should never go into the red, you can run you 450's all the way open and if you need hit the red they will run all night, treat them like an amplifier not a speaker.

If you find that you are running in the red more often then you think, you need more mackies not different speakers or amps just more of them, the red respresents what you want your volume to be, if you added more speakers, you would be able to achieve a higher volume level without overdriving each amplifier. Just my opinion, but this this thinking has never let me down.
 

djmarcburgess

New Member
It amazes me what some of you do to your equipment. I've had my 450's for a number of years and they have never shut down on me.

And that's after doing 18 hour Relays for Life in the Florida heat and humidity!

They're plenty loud for my applications, and in my opinion give great coverage. But as has been mentioned numerous times...use the right tool for the right job AND USE IT CORRECTLY and you won't have any problems.
 
To each his own. Granted i admit to driving my mackies when they tripped i was in no way, shape or form pushing distortion through them, furthermore i NEVER run my 450's without subs. Wether it be
2-SRS1500 or 2-SWA1801 all depending on the size of the crowd. It just seem's that the 450's tend to trip whenever any bottom heavy tracks are pushed through them. I eventually realised that they are simply not meant for what they where originally sold to me as and have added larger speakers to cover those events in which a mackie just wont cut it. If anyone has any doubts to this try playing a quinceañera or sweet 16 with a playlist composed of mostly hip-hop, R&B, reggae and reggaeton for 200 screaming teens at a decent level and i can almost guarantee that at one point or another that little thermal light will pop on. So to answer the question that started this post, YES MACKIES CAN AND WILL SHUT OFF AND GO INTO THERMAL PROTECTION IF "OVERDRIVEN" EITHER BY TOO MUCH BASS OR HIGH SPL FOR LONG PERIODS. IMO
 
High pass mode. To me the reaction of a mackie is more user specific than anything else. They sound great and 5 years ago when i purchased them i didn't want to hear different. However through the years i've put them through their paces and have come to realise that for certain apps. the 450's simply don't cut it. You need a bigger speaker . However to find this out you have to push the envelope from time to time and that's how i came up with this opinion of them. Don't get me wrong, i still use my 450's when i feel that i can get away with it. But when in doubt i bring something bigger.
 

dnddj

New Member
My 450's have gone thermal on me just once.

It happened to only one of two of them when I put them on their side as stage monitors, and after they were running for about 4 + hours...

My guess is that the heat sinks can not shed the heat on their side, as heat usually rises up the sink, and could not since they were on their side.

It might have been that the act sucked and they did not want to hear them either... :-(

I have had them for many years now with not a complaint. In fact, this past weekend, I realized that I need to dust them off after I saw them in the sunlight from a distance. Tried, True and blue...
(leds that is...)
 
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