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Tannoy Crossover Capacitor 1000V ?

I'm new to this, so please bear with me. I recently got my hands on a couple of 15" dual concentric drivers. The crossover schematic shows (for High Frequency) - 3 separate caps at 1.3 mf @ 1000V, and one at .9 mf @ 1000V. For the life of me, I can't find these values anywhere!

Q1: Does anyone know where I can find these?
Q2: Can I use a lesser Voltage than the 1000V as specified on the schematic instead of 1000V?

Please help!!
kopperhead
face
516 posts
 
I would just use a good 4.7uf on the HF unit, that would really open up your choices. I recently tried a pair of Obbligato Copper Caps and thought they were fantastic. Sonic Caps also aren't bad. Or you could go crazy and check out Claritycap MR's and Duelund.
kopperhead OP
4 posts
 
Is it ok to go .1 uf under ? I'm assuming that's ok since it's so close to a total of 4.8 uf, I'm still learning!

Side note, I was cleaning some pots from a Yamaha Preamp, and I noticed that the top of both of capacitors seemed slightly bowed, or curved like a bubble on top...It sounds fine, but is this a sign they should be replaced? There is no leakage that I can see.
face
516 posts
 
Since it's under a 5% change, you should be ok. As I mentioned above, some manufacturers can make custom values for you though.

As for your Yammy, bulging caps are never a good thing.
kopperhead OP
4 posts
 
thanks for all your help!

Dan
musicfile
341 posts
 
Any ideas how the Obbligato fair in coupling positon of tube amplifiers
I really like the Clarity cap MR but it's too big size wise to fit
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