200vdc vs 100vdc

[BADesign77]

Super new at this guys. I pulled apart the crossover and upgrading components. The tweeter had a 4uf 200vdc and I am replacing with 3.9uf 100vdc. Is there any problems with doing so when it comes to VDC. And what's the difference in vdc with tweeters

 

[Osvaldo de Banfield]

Which are the power available from the amplifier and the rated impedance?

 

[BADesign77]

Tweeter is 4ohm
the speaker (310 HO AR). Power from amp is 110w per channel (poa t3 denon)

 

[Osvaldo de Banfield]

Whence we have:

E = sqrt ( P [W] x R[ohm] = sqrt ( 110 x 4)
E = 21VRMS.

E^ = 21 x sqrt(2) = 30Vpeak
(Rounding all values).

So 100V is more than sufficient. A 35V unit also goes.

 

[BADesign77]

I have no idea what any of that means but I truly thankful for your help, workings and confirmed that I didn't waste my money. Thank you I really appreciate it.

 

[asuslover]

Must be one of the greatest set of speakers if you decided to use one of the most expensive 4 ish uf capacitor on the market....

 

[BADesign77]

Not really but, we all know that just a crossover upgrade transforms any speaker. And the hi end speaker are out of my budget. And a 5k speaker doesn't have 5k worth of parts. So in theory take a ok-to good speaker and transform them, for a some what of a budget I'm going to be happy....even when I was happy the way they were lol

 

[Osvaldo de Banfield]

I simply did the calculus of peack voltage at worst case in the capacitor using simple maths. Any text book will deal wirh it.

 

[wg_ski]

Putting a more expensive capacitor in it isn’t necessarily going to make it “better” if the original was appropriate to the design.

 

[davidsrsb]

Foil capacitors are linear up to rated voltage, so the only concern is that the rated voltage is high enough to survive power amplifier failure short to power rail, which should be less than 100V