We repliers could be the study! He posts two pictures of a possible upgrade, people ask thinks about it and he never replies, so annoying repliers.
Please, give us more details.
Please, give us more details.
I'm not sure what you were trying to fix, but I doubt changing the dcr of those coils did what you expected.
BTW, it didn't annoy me at all that you stuffed a perfectly good pair of speakers. Technically illiterate people do it all the time.
BTW, it didn't annoy me at all that you stuffed a perfectly good pair of speakers. Technically illiterate people do it all the time.
Last edited:
And did you retest the impulse response to see if you actually improved it or made it worse ?
It's L1. He used an inductor with a toroidal core, which will easily saturate and distort. A great way to annoy listeners.
The original part looked like an air core, which does not have this problem.
The original part looked like an air core, which does not have this problem.
So the original Solen Fast Cap MKP caps (5% tol), of which several different models have been used (PA, PB, PPE)....you have replaced with Jantzen Standard Z cap (2% tol) in all positions....
The air core inductors have all been replaced with slightly bigger versions...hopefully due to being lower DCR...(one has been replaced with a toroidal core).
The original basic resistors have been replaced with Jantzen Superes 10w (1% tol) resistors...
Besides the basic resistors there is nothing "wrong" with the original caps & inductors...all decent quality...(I'll leave the inductor spacing/closeness as ok but not to my personal liking)
You would have been better improving the weak link that you still have...the internal wiring & the basic metal with cheap "gold" plating, ...the big blocks of unnecessary metal that are the four binding posts.....most likely magnetic & cheap.....rip those out & fit 4mm MC/Staubli gold plated brass test/measurement sockets.......
Doesn't matter how fancy the caps/resistors/inductors are the signal still has to travel through those binding posts......so you still have "rubbish" affecting the signal.
Perhaps the annoyance is, he opened one cabinet, found Xover1, opened the second, found Xover2. That'd be annoying to me, if the speakers had consecutive serial numbers... Ok, even if they didnt!
Good find! But please attach pictures directly to your post, without using imgur or other external services.
So you performed a study that you now present with pictures, with the purpose to really annoy people.. is that correctly understood?
Congrats - it worked on me.
//
Congrats - it worked on me.
//
I agree that is the preferred way to post pictures. In this case they are attached to the post but due to the new forum's ways that isn't obvious.
Looks like a Jantzen C-Coil, designed for use in high power (400 to 3000W) bass sections with a cross-over point lower than 1.2kHz...
http://www.jantzen-audio.com/wp-content/uploads/C-Coil-Data.pdf
http://www.jantzen-audio.com/wp-content/uploads/C-Coil-Data.pdf
Not a fun of exotic parts myself but it's true that these toroid inductors are good to have in the woofer section. Whether the crossover was designed with very low DCR in mind is another story but again it's about the woofer.
Regarding resistors, attached is my cheap cement wire wound dummy load and I think it's fine.
Regarding resistors, attached is my cheap cement wire wound dummy load and I think it's fine.
