I have had my M200s (2) for a couple of weeks now. I was listening to music in stereo mode (each M200 driving a Def Tech BP2002) at a fairly loud level and had one of the M200s shut down apparently from heat, the unit was quite hot to the touch. What surprised me was that it was the unit on top, not the bottom. I powered them down and let them sit for about 20 minutes, powered back up and they were fine. Can someone tell me if this is normal for the M200. I was driving them pretty hard but I didn't suspect they would have any problem wih this load. BTW, there is about 6" of airspace above the top amp (the one that shut down). Any ideas?

Thanks!

[This message has been edited by Roland (edited June 22, 2004).]

It's odd that yours powered down. Mine have never done that and I've played them very loud for extended periods.

Remember that the top one has to get rid of its own heat plus whatever is added from the one below.

Thanks for the reply JT. Do you have your amps stacked? I thought it odd as well and I am trying to determine if I have a faulty unit, but I have not had any other issues with it. I don't believe the Def Techs are an extremely difficult load, that is why I was surprised it shut down.

Ed

Try to make the shutdown repeat under the same conditions. If it does it again, try swapping the amps locations and channels with each other and do it again. If the same amp does it in it's new location driving the other speaker, then it must be an issue with that amp. If the other amp does it, it may be the location generates too much heat, or the load from the speaker may be different...I'm no electrical engineer so I'm speculating here. If the amps both function without issues after swapping them, ENJOY!!!

Cadboy:
Thats good advice,I'll do that.

Thanks,
Ed

Yeah, I had one on top of the other. They even had a line of duct tape wrapped all the way around so that I could carry them better.

Amp carrying strap? Made from duct tape? Now there's a wild mental picture -- sort of a DIY version of one of these wrapped around a pair of Model 200's.

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Well, I just swapped the speakers going to each amp and the same unit dropped out in a fairly short time. So now I have switched the amps from top to bottom, as soon as it cools off I'll try it again.

[This message has been edited by Roland (edited June 22, 2004).]

[This message has been edited by Roland (edited June 22, 2004).]

The amp shutting down is the one on top. After feeling the bottom of the top one I can see why, it is extremely hot. I am now spacing them with 2x4s being careful not to cover the vent holes. As soon as they cool off I will try it again and report back.

[This message has been edited by Roland (edited June 22, 2004).]

Well, they both went red on me this time. I think separating them just allowed them to heat up evenly instead of the top one cutting out first.

Ed