Quote:
Originally Posted by Joe@Definitive 
Hello KJ, JT and all,
Yes, the BP 20 used a Vifa soft dome that is not made anymore. The good news is that Vifa has a replacement that is similar, and you can get it from Parts Express. It's the Vifa D27TG-35-06.
Here is a link for Parts Express: http://www.parts-express.com/pe/show...umber=264-1022
Regarding the crossover discussion, a crossover is really a sophisticated traffic cop. The engineers are trying different filter schemes in order to choose at what frequency the tweeter should begin carrying the load - or above which frequency the tweeter will reproduce the music, rather than the midrange or mid-woofer doing it. Obviously this frequency (and the slope, or rate at which the transition takes place) changes when you change parameters - box size, tweeter quality and material, etc. So if you simply swap in a tweeter with different characteristics, you aren't likely to blow stuff up... but as Chet says, it isn't necessarily going to sound right. Hence the suggestion to use the Vifa replacement rather than a metal dome. This is of course a simplified explanation from a sales guy, but it's essentially correct. I hope that helps - best, Joe

Hello KJ, JT and all,
Yes, the BP 20 used a Vifa soft dome that is not made anymore. The good news is that Vifa has a replacement that is similar, and you can get it from Parts Express. It's the Vifa D27TG-35-06.
Here is a link for Parts Express: http://www.parts-express.com/pe/show...umber=264-1022
Regarding the crossover discussion, a crossover is really a sophisticated traffic cop. The engineers are trying different filter schemes in order to choose at what frequency the tweeter should begin carrying the load - or above which frequency the tweeter will reproduce the music, rather than the midrange or mid-woofer doing it. Obviously this frequency (and the slope, or rate at which the transition takes place) changes when you change parameters - box size, tweeter quality and material, etc. So if you simply swap in a tweeter with different characteristics, you aren't likely to blow stuff up... but as Chet says, it isn't necessarily going to sound right. Hence the suggestion to use the Vifa replacement rather than a metal dome. This is of course a simplified explanation from a sales guy, but it's essentially correct. I hope that helps - best, Joe
Joe,
Thanks! I saw that tweeter on parts express last night and was going to call Chet about it so you save me a call. Anyhow, I took the two bad tweeters apart and was able to solder the broken/burnt wires back together and they work and sound great!
I'm still going to replace them though as I suck at soldering and don't trust the repair long term.
I still have to find two replacement metal logo pin things, floor spikes, mend the socks a bit and and find a manual, but for $180, I made out! None of these parts are on e-bay, so I hope you guys have some.

Jim













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