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New BX5a's rear plate gets very hot, normal or not?

post #1 of 5
Thread Starter 
Hey guys like the title says...just received a pair of BX5a in the mail and went out to buy these plugs and cables(check below for images), but it seems like the rear panel is getting too hot. Well it is really hot in my room and I had the speakers on for about 2 hours now. So idk if that is normal for active speakers, but it feels like it needs some kind of heatsink. Are my cables and adapters the right ones or do I need something different.

The rear panel of the BX5a's. Note i am using the TRS plug. (see the image in the back panel which has a TRS(tip, ring, sleeve) image printed in white, but my 1/4" adapter is only TS(tip, sleeve)


Here is the 1/4" to rca adapter. Then a 12ft. rca cable connected to Y adapter below.


Here is the Y adapter and the other end of the 12ft. rca cable.



What do you think? is the heating of the rear panel normal or what? are my cables fine or the wrong type?
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post #2 of 5
the heat in the back panel of the BX5a is normal.

The amp for speakers get hot and are attached to the metal panel for heat dissipation.

if the only out you have is 3.5mm then you are using the right connector.
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post #3 of 5
Thread Starter 
I just thought that I messed up something big time cuz as you can see in the rear panel of the BX5a there is a label for pin 1,2,3 which is ground,+,- while I used a ts unbalanced adapter which doesn't follow that label about pin 1,2,3. I was trying to check if MAudio has any contact number, but seems like I have to do a bit of digging in their site . But thanks for that comment, I'm a bit relieved for the meantime .

edit: M audio tech support is close atm. Gonna call tomorrow and gonna keep playing music ...still waiting for my Dayton SUB-120 coming this Wednesday.

edit: Question; Do i lose any quality if I use longer cables? This is how my setup will be when the sub gets delivered.

Here are the following:

Onboard Sound>3.5mm to rca adapter>12ft rca cable>Dayton Sub-120 rca in>Dayton Sub-120 rca out>12ft rca cable>rca to 1/4" adapter>BX5a.

as you can see i have 2x12ft rca cable running my setup. is shorter better or is this fine?
Edited by YanYan001 - 8/8/11 at 8:27pm
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post #4 of 5
Here is a thread on Maudio forums about the monitors getting hot and a CS rep reassuring the member that it's normal:

http://forums.m-audio.com/showthread...5a-overheating

Also when you play the speaker the port moves air in and out, in small amounts so the air inside is not stale . This helps the hot air inside cool down a little bit, although that is NOT the purpose of the port.

There have been a few reports of the 6800uF capacitor blowing due to heat, but not too common
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post #5 of 5
Thread Starter 
Ah I see....i read the thread....he was also thinking if his TS plug was the cause of the heat. Yeah, when I was buying the plugs I thought TS(mono) is the perfect one since it will only be connected to one speaker and the other end connected to either the red or white rca(left/right). It wasn't like I needed the stereo(TRS) for 1 speaker, because that doesn't make sense I thought to myself.

Thanks for the link though +rep ....I wonder if a heatsink would be a good idea
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