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Anyone have any good mods/tweas for the ah tjoeb 4000/upsample?? I already installed some Amperex 6dj8 and liked the sound. But can something be done with those big red Wima caps and the small yellow coupling caps .22uf/63v and 1uf/63v?? Any of the good cap companies like auricap make a cap that is small enough to fit?? Any other mods??
thanks
frank
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Vibration, vibration, vibration. I lined the entire case with Dynamat and got a significant difference in bass depth, strength, and impact and in general resolution and focus. I've also got it on vibration-controlling feet and a rigid stand... and have a Sorbothane mat and weights on the top.I replaced the power cable with a heavy-gauge solid core one... lower noise floor, again more bass.
I haven't played with the caps yet... those Wima and Philips caps are likely candidates. Also Auracap AC filtering seems to be a good bet.
Setting it up to use 6N1P's is another mod I've been considering... see here for what you need to do:
http://www.hifi-planet.com/ah3-enhp.htm
Greg in Minneapolis
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