Class T-amps

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Originally Posted by musicmatters

I've bought two of these boards in the last year, replacing the output coils (with heavier duty Wurths), input caps (with Daytons and old PIOs) and rail caps (with a sextet of Panasonic FC 1000uF/35V). I haven't done it yet, but replacing the heatsink/fan combo with a Zalman passive device should be helpful. A good power supply is essential, about 27V to 32V. Sure Electronics sells the oddly-named Meanwells, which are a great deal in themselves; for US$50, you get a hash-free SMPS that doesn't flag under load. My Meanwell's fan has never turned on. For well under US$150, you can enjoy listening to a real giant-killer. I've owned ASL tube monoblocks and a Triode Electronics modded ST-70, and I like the Sure more, much more. The Sure is a fabulously rich-sounding and dynamic amplifier. Smooth, too.

Naturally, my statements are based on my opinions, though I've sprinkled in some relevant facts. ;) YMMV, etc., etc.

--Alan

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Hi Alan,

Welcome to AOS. Where are you from? :)

Marco.

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Originally Posted by Covenant

In the words of Mrs Doyle from Father Ted " Go on go on go on.....":eyebrows:

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:lol: Mainly interested in this for use in the bedroom , it looks quite compact so seems the best option so far and lots to tinker with

I allso want something different to try for the main system too which was going to be the first thing to sort out, so many choices :doh:

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Originally Posted by leo

:lol: Mainly interested in this for use in the bedroom , it looks quite compact so seems the best option so far and lots to tinker with

I allso want something different to try for the main system too which was going to be the first thing to sort out, so many choices :doh:

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Too good for the bedrrom matey! I may try a couple of the two channel boards rather than the one four channel I have from Sure at the moment. Very good and silly VFM.

Hmm, well it should prove interesting, looking at the schematic theres a few things which can be improved, if I get one I'll start a thread in the diy section

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Originally Posted by leo

Hmm, well it should prove interesting, looking at the schematic theres a few things which can be improved, if I get one I'll start a thread in the diy section

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Blair knows a thing or two abou them, and he is a very nice helpful bloke too.

Check out his modding diary...

http://www.justblair.co.uk/sure-2x10...pressions.html

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Originally Posted by Marco

Hi Alan,

Welcome to AOS. Where are you from? :)

Marco.

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Hi Marco, great forum you have here. I've been lurking the better part of a year and I really enjoy reading what many members have to say. I updated my profile. I'm in Austin, Texas.

--Alan

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Originally Posted by aquapiranha

Blair knows a thing or two abou them, and he is a very nice helpful bloke too.

Check out his modding diary...

http://www.justblair.co.uk/sure-2x10...pressions.html

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May I suggest this long yet essential thread on diyaudio.com?

--Alan

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Originally Posted by jtay

http://cgi.ebay.co.uk/ws/eBayISAPI.d...=STRK:MEWAX:IT

This is a complete board based around the tk2050 tripath chip - output up to 100 watts into 4 ohms.

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This evening I just modded that board with a new set of improved Wurth 4.7uF inductors, a better and passive heatsink and a better input stage. See photos.

http://www.hifiwatcher.com/wp-conten...05/ClassT1.jpg

http://www.hifiwatcher.com/wp-conten...05/ClassT2.jpg

Will report further when I box it and fire it up. Will take a little while though - busy life at the moment.

Andrew

I have just ordered one of these Andrew so I will be watching your posts wth interest. The only doubt I had about this board was the fan as I sit close to the hifi and was worried about noise so I am pleased that it can be replaced with a passive heatsink. Where did you get it from?

Just seen a post on diyaudio pointing to a TA 2022 board on ebay with a built-in valve input stage for 79 Dollars delivered.Looks interesting.I can't post the link as I'm on my phone.