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Post by mightyant on Aug 21, 2014 19:31:58 GMT
I have two 211 monoblock amps that stand about 10" high. At the moment they are on individual frames next to the speakers. My question is would you stand them on a glass stand with a height in between the shelves of 13". My fear is that the heat from the amplifier at the bottom will gyrate through the glass and damage the innards of the one above. They will be in free space, but I still wonder if it is right way to set them up?
Your recommendations would be most helpful.
Thank you, in anticipation,
Anthony.
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Post by John on Aug 21, 2014 19:42:23 GMT
With Monoblocks that good I consider putting the best isolation I can under them. Others here will disagree with me but think the monoblocks deserve it
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Post by John on Aug 21, 2014 19:43:13 GMT
Double post
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Post by Deleted on Aug 21, 2014 19:56:51 GMT
I use two valve amps at different times. Firebottle OTL and Leak Stereo20. The glass shelves on my rack are also 13" apart. I find it advisable not to keep anything on the shelf above the Stereo20 and remove the shelf altogether with the OTL. It gets pretty hot. I'm not sure that the sort of heat would be sufficient to damage electronic components but it never seems worth the risk.
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Post by jammy on Aug 22, 2014 1:35:53 GMT
I would.
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Post by ChrisB on Aug 22, 2014 5:57:05 GMT
I don't think a distance of three inches is far enough.
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Post by MikeMusic on Aug 22, 2014 8:57:19 GMT
Can you test it out ?
My CHord 2600 generates a lot of heat and makes the glass shelf on the Mana rack 3" above sightly warm to touch.
Plenty of air space front back and sides
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Post by Chris on Aug 22, 2014 18:17:50 GMT
Install a fan.
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Post by mightyant on Aug 22, 2014 19:34:43 GMT
With Monoblocks that good I consider putting the best isolation I can under them. Others here will disagree with me but think the monoblocks deserve it John, How do you know they are that good? Is my profile public? If it is I'd rather it wasn't, Thanks for your comment, though. I thoroughly agree with you and the said stand is now covered with books and magazines. The best one is the history of Verve " The Sound of America" a massive book from books.telegraph.co.uk. Sorry if I have done summat wrong again, but anyone interested in Jazz should have a copy, even discounted to £30. Anthony. p.s. I have no link with the Telegraph, just a true jazz fan. |
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Post by John on Aug 22, 2014 19:38:19 GMT
Not your profile just Googled 211 monoblocks Mike
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Post by mightyant on Aug 22, 2014 19:40:39 GMT
Not your profile just Googled 211 monoblocks Mike Why didn't I think of that?  |
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Post by ChrisB on Aug 22, 2014 19:42:13 GMT
Oooh, that looks nice! There's a version of it that has 10 of the best Verve albums too (on vinyl, no less) - a bit pricey and it's not for me, but a lovely thing for someone. The bog standard one will do me fine. |
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Post by Eduardo Wobblechops on Aug 22, 2014 19:45:49 GMT
With Monoblocks that good I consider putting the best isolation I can under them. Others here will disagree with me but think the monoblocks deserve it John, How do you know they are that good? Is my profile public? If it is I'd rather it wasn't, Thanks for your comment, though. I thoroughly agree with you and the said stand is now covered with books and magazines. The best one is the history of Verve " The Sound of America" a massive book from books.telegraph.co.uk. Sorry if I have done summat wrong again, but anyone interested in Jazz should have a copy, even discounted to £30. Anthony. p.s. I have no link with the Telegraph, just a true jazz fan. Seconded! I have that book, a great read. |
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Post by daytona600 on Sept 3, 2014 21:21:29 GMT
![]() Have some large Monos myself 250wpc PP with 16x300b , big buggers 700w heat at Idle so keep them on the floor as they weigh 100kilos & would break most shelfs/racks Hifi racks isolation plinths good if you like wood , but they no live on a pair of symposium platforms with rollerblocks for vibration/isolation |
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Post by Deleted on Sept 4, 2014 6:46:12 GMT
I use some large mono's on one of the systems at home they are close to 120 kg's thankfully unlike the larger class 'A' valve mono blocks they do not generate any where near the heat. Some of which idle at around 750w so 3/4 of a KW of heat being dissipated. That's a lot of heat and power to convert.
Over the years I have found this have been more of a problem with wood due to the distortion from excess heat the amp generate over time . Only last week I visited a gent who was running Cary 211 (oddly enough they use 845's) his set of custom built wooden amplifier stands has failed by badly distorting he uses a different manufacturers product now.
His amps are close to 0.5m long so custom stands we're manufactured for him now he has the isolation to improve his sonic performance and has a more pleasing look to his listening room
This raises the question of CE certification of these amps as there is a maximum outside temperature that has to be adhered to.
Just to cite a case here one customer who was using a we'll known brand of US valve amps and over 9 months they managed to carbonise a set of isolation blocks which have a temperature threshold of 160C this happened twice. The limit is around 55C for the EU directive on outside temperature
All grist for the mill
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