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Author Topic: MDRT heat  (Read 429 times)

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Rusty

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MDRT heat
« on: Time Format »

Hi folks,  Just want to ask a question about heat from the MDRT transformer I have in my 3TM,

The MDRT feels pretty hot after playing for about 30 minutes or so, I took the lid off to touch it and yea it gets very hot, especially the metal laminate core, its almost un-touchable. Is that normal to produce so much heat with an MDRT as I'm a bit concerned about it?

Everything else is normal and the sound doesn't change.

Thanks.
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rnolan

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Re: MDRT heat
« Reply #1 on: Time Format »

I have MDRTs in my MB1s, I'll test next time I fire one up and also ask MikeB as he has one in his MP1.  MJMP will be able to give you are more unequivocal answer but I expect it's normal and nothing to be concerned about.  MP2s get very hot on top and it's never been a problem in all the years I've gigged with mine (as do B200s  >:D ).  I did have some minor issues with fade when I had one of my MP2s on top of the MB1 (or was it MB1 on top of MP2  :dunno: ), they were just sitting in the angle studio rack though, not bolted in so no gap between them.
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s

MarshallJMP

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Re: MDRT heat
« Reply #2 on: Time Format »

Normally an MDRT hooked up to a 3TM with the lid off get's to around 36-38 °C (depending on the room temp).

For the rest it depends where you put the mp-1 in, the cooling it gets etc... but it can stand at least 50°C.
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Rusty

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Re: MDRT heat
« Reply #3 on: Time Format »

Thanks for the replys guys,
I'm thinking I might drill some holes on the lids and get some more extra air moving.

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rnolan

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Re: MDRT heat
« Reply #4 on: Time Format »

Well you could do that, how do you have it mounted ? You really shouldn't need to drill more holes, not that they will hurt.
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s

MarshallJMP

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Re: MDRT heat
« Reply #5 on: Time Format »

I agree with Nolan, maybe a fan would be a better idea. Blow some air in your rack.
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herbyguitar

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Re: MDRT heat
« Reply #6 on: Time Format »

Would there be any problem running without a top cover on the MP1 with a MDRT so the heat can get out easier?
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MarshallJMP

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Re: MDRT heat
« Reply #7 on: Time Format »

Mmm two issues here.One is safety, second the case acts a bit like a faraday's cage so removing the top cover could give more noise (although not much)
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Kim

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Re: MDRT heat
« Reply #8 on: Time Format »

+1 on what MJMP said.   I'd add that without a lid there's a greater chance of dust and other foreign debris building up in there, neither of which will do the unit any favors.
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RIG OF FIRE:  ADA MP-2, Rocktron Xpression, Peavey Classic 60/60, Gator GPB-BAK-1 pedalboard, Korg DTR1000, Rolls MidiBuddy, Morley Tremonti wah, Saturnworks buffered splitter.
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MarshallJMP

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Re: MDRT heat
« Reply #9 on: Time Format »

Good point Kim !
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rnolan

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Re: MDRT heat
« Reply #10 on: Time Format »

IMHO, running with the lid off (except when needed for maintenance etc) is not a good idea.  Apart from what the guys have said, it also acts a a heat sink and spreads the heat across the whole surface area so it can dissipate.  Mount it at the top of the rack so it has air above it, make sure there's as big a gap as possible between units so air can circulate (or even better leave a space beneath it).  Really, it shouldn't be a problem, yes these unit get hot, but that's how they were designed, and in all the years I've used MP1 then MP2 (which are even hotter), I've never had any issues (just don't go touching the top LoL).  Moreover, this is in Australia, it gets quite hot here in summer.
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s
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