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#117494 - 09/05/04 08:45 AM
Re: Best smallish PA for acoustic piano
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Senior Member
Registered: 09/21/00
Posts: 43703
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#117502 - 09/06/04 01:46 AM
Re: Best smallish PA for acoustic piano
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Senior Member
Registered: 10/27/03
Posts: 2417
Loc: CA
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Originally posted by Dnj: The 450's overheat frequently on stage & shut off.....dont lay them down either.I dumped them fast! I think they fixed the overheating issue Donny. In fact I don't think there ever was a problem really. I heard a Band play through 2 Mackie SRM 450's today in 92 degree heat for three hours and they performed flawlessly. No problem at all with them overheating, shutting down because of overheating, or any audio anomalies, etc., because of heat issues or overheating. You may have gotten a faulty pair of SRM 450's Donny. Don't throw out the baby with the bath water because of a possible isolated overheating issue with your Mackies. PS: I have never heard of any Mackie speakers taking a nose dive because of heat related issues btw. So with a little EQ'ing through a Mixer "fourthharmonic", the Mackie SRM 450's may well be the speakers you're looking for. The SRM 450's I heard today sounded astoundingly pristine and rock solid. No pops, quivers, rattles (no electrical smell because of heat ) or distortion of any kind that I could hear. Best regards, Mike
_________________________
Yamaha Genos, Mackie HR824 MKII Studio Monitors, Mackie 1202 VLZ Pro Mixer (made in USA), Cakewalk Sonar Platinum, Shure SM58 vocal mic.
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#117506 - 09/06/04 10:19 AM
Re: Best smallish PA for acoustic piano
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Senior Member
Registered: 10/27/03
Posts: 2417
Loc: CA
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Originally posted by Dnj: Lay them down as a monitor on stage? Enjoy waiting for the Thermo Shutoffs to kick in after about a 5 min cool down period unless you put an optonal fan on the heat sinks while 500 people wait for you on the dance floor my friend , I know what I'm talking about.... Buyer beware
Donny, have you been playing inside Clubs in the middle of summer when the temperature outside is over 100° and even hotter inside plus the joint doesn't have any air conditioning - again? You outta try and stay away from that type of venue Donny... Donny, in theory [and in the real world] the SRM450 speakers can and will go into thermal mode, i.e. shutdown - if you push them too hard in certain circumstances. The circumstances being: when the temperature is up there near or in the triple digits, or if they are placed or mounted where the air flow is restricted around the back of the speakers where the heatsinks are, and if they are in direct sunlight, again 'in very hot weather' with little or no air flow, or if you try and push them too hard for too long (and the other issues of what keeps them from going thermal aren't observed, e.g. - restricting air flow to the heatsinks, etc.). If you want that extra assurance you can push the "Low Cut" filter button and the "Contour" button which will reduce the load on the 450's and give you more headroom and even less possiblity they will go thermal. But the best way to virtually eliminate any possibility of thermal shut off 'ever' is to use a Subwoofer along with the SRM 450's such as the Mackie SWA1501 or SWA1801. But even if you don't get a Subwoofer you really shouldn't experience any problems with the 450's if you follow the suggestions listed above. Btw Donny, you should put the Fans on the back 'before' you go in front of an audience not after the fact. Best regards, Mike [This message has been edited by keybplayer (edited 09-06-2004).]
_________________________
Yamaha Genos, Mackie HR824 MKII Studio Monitors, Mackie 1202 VLZ Pro Mixer (made in USA), Cakewalk Sonar Platinum, Shure SM58 vocal mic.
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#117511 - 09/06/04 05:15 PM
Re: Best smallish PA for acoustic piano
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Senior Member
Registered: 12/01/99
Posts: 12800
Loc: Penn Yan, NY
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Originally posted by keybplayer: I have never heard of any Mackie speakers taking a nose dive because of heat related issues
Donny's not the only one that had this embarassing shutdown. In certain situations, with pumpin' bass, loud volumes ( like a typical wedding )mine shut down more thana few times .... same as the few times they were placed too near a corner, on the floor, on their side. ( A Mackie suggestion ) Outdoors, on poles in direct sunlight - same deal ... but not as often. The heat sinks are inadequate for the volume levels that the 450s generate in less than optimal conditions. I don;t care what the specs say, or what you read somewhere .... in practical application, in a real demanding musical show, I can site more than a few shutdowns that are specific to the Mackies. The sound was incredible, but the letdowns were too numerous for me to trust them again.
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No longer monitoring this forum. Please visit www.daveboydmusic.com for contact info
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