The capacitor is especially important because it will be the only thing between the tweeter and amplifier. I'm in the final stages of acquiring everything necessary for my passive to active speaker conversion - exciting!
Before recommendations, you need to know the capacitor's performance is actually even more critical than you might be assuming. How?
The tweeter itself, is exceptional. Beyond exceptional, actually - and not only that - so's the amplifier.
And the amplifier's source? It's even better, still
I really don't think it's wise to just throw a nice low-ESR 50uf bipolar electrolytic in series with my beautiful tweeter and call it a day... I'd like to make sure that the cap I use doesn't, I'll borrow the FCC's annoying language here... "cause undesired operation".
I can only describe, with certainty, the end result I want:
I want the cap I use to prevent accidentally generated DC from cooking the coil of my tweeter (if it's generated at some point), and I want minimal added HD and IMD to the signal. I don't want the capacitor's impedance to change (appreciably) through the tweeter's operating spectrum
I've been reading some about caps, and have a new respect for them - capacitors are their own special thing, you could literally become a specialist in capacitors, the different types, how each behaves, how their different behaviours make them good for specific things, which types of caps you should use in what situations (to not waste money or to get maximum performance or to minimize associated component count, or however you might want to optimize something, caps are crazy.
I want the cap to be as transparent as possible for a target of $50USD. If the best option is $30, I don't need to waste $20 on something inferior, and if $60 gets something significantly better than $50, I'll spend the extra 10.
Before recommendations, you need to know the capacitor's performance is actually even more critical than you might be assuming. How?
The tweeter itself, is exceptional. Beyond exceptional, actually - and not only that - so's the amplifier.
And the amplifier's source? It's even better, still
I really don't think it's wise to just throw a nice low-ESR 50uf bipolar electrolytic in series with my beautiful tweeter and call it a day... I'd like to make sure that the cap I use doesn't, I'll borrow the FCC's annoying language here... "cause undesired operation".
I can only describe, with certainty, the end result I want:
I want the cap I use to prevent accidentally generated DC from cooking the coil of my tweeter (if it's generated at some point), and I want minimal added HD and IMD to the signal. I don't want the capacitor's impedance to change (appreciably) through the tweeter's operating spectrum
I've been reading some about caps, and have a new respect for them - capacitors are their own special thing, you could literally become a specialist in capacitors, the different types, how each behaves, how their different behaviours make them good for specific things, which types of caps you should use in what situations (to not waste money or to get maximum performance or to minimize associated component count, or however you might want to optimize something, caps are crazy.
I want the cap to be as transparent as possible for a target of $50USD. If the best option is $30, I don't need to waste $20 on something inferior, and if $60 gets something significantly better than $50, I'll spend the extra 10.