Hartung / Prestla OTL amps

nathanjh13 · 12th May 2011, 10:46 AM

Hi

I came across the Hartung Stereo OTL on ebay, has anybody bought one? or their Prestla monoblock equivalent/s? If so how are they?

Hartung OTL

Both are available in kit form etc.

Thanks
Nathan

the_manta · 12th May 2011, 11:38 AM

Hi,
First, I have never heard one of their amps, but just from seeing the pictures I wouldn't buy one.
The space between the tubes is too low, furthermore there aren't any vent holes in the chassis. One 6S33S produces about 40W only with the filament ! A good chassis concept and vent holes are necessary in my opinion.

nathanjh13 · 12th May 2011, 11:59 AM

Thanks. Yes, they are very new, I imagine it will take a while to develop a name for themselves of course. However, I have put your observations to them.

Best
Nathan

12th May 2011, 10:46 AM	#1
nathanjh13 diyAudio Member Join Date: Jul 2010 Location: York Uk	Hartung / Prestla OTL amps Hi I came across the Hartung Stereo OTL on ebay, has anybody bought one? or their Prestla monoblock equivalent/s? If so how are they? Hartung OTL Both are available in kit form etc. Thanks Nathan

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12th May 2011, 11:38 AM	#2
the_manta diyAudio Member Join Date: Nov 2006 Location: Munich, Bavaria	Hi, First, I have never heard one of their amps, but just from seeing the pictures I wouldn't buy one. The space between the tubes is too low, furthermore there aren't any vent holes in the chassis. One 6S33S produces about 40W only with the filament ! A good chassis concept and vent holes are necessary in my opinion.

12th May 2011, 11:59 AM	#3
nathanjh13 diyAudio Member Join Date: Jul 2010 Location: York Uk	Thanks. Yes, they are very new, I imagine it will take a while to develop a name for themselves of course. However, I have put your observations to them. Best Nathan

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