Re: Simplexx 212 build w/ Pics
Posted: Fri Mar 09, 2018 7:31 pm
BillFitzmaurice.info
Loudspeaker Design
https://billfitzmaurice.info/forum/
Simplexx 212 build w/ Pics
Page 5 of 14
Is it normal it's not written anything about "kappalite 3012lf" on the woofers?
Re: Simplexx 212 build w/ Pics
Posted: Fri Mar 09, 2018 11:31 pm
Just bought the crown XLS 2502 for like 250$ cad less than what it would cost me here, there was s 20% off on ebay just today for everything, so stocked haha (the cheap guy talking again)
Re: Simplexx 212 build w/ Pics
Posted: Sat Mar 10, 2018 1:40 am
I've never understood why they don't label those. There should be a part number label that you can cross-reference on the speaker somewhere.......Electric Wisdom wrote: ↑Fri Mar 09, 2018 7:31 pm 28908444_10151101503389984_1766498231_n.jpg
Is it normal it's not written anything about "kappalite 3012lf" on the woofers?
Re: Simplexx 212 build w/ Pics
Posted: Sat Mar 10, 2018 7:10 pm
Got some nice black cover for my Sunn amp before diving more into the cab building, the grill was so old and dirty, now super fancy 
Re: Simplexx 212 build w/ Pics
Posted: Sun Mar 11, 2018 12:25 am
All the little back pieces for speakers in the baffles.
Re: Simplexx 212 build w/ Pics
Posted: Sun Mar 11, 2018 7:37 pm
Damnit lol, really must measure 3 times, cut once, that shit is real hahahaha 
Re: Simplexx 212 build w/ Pics
Posted: Sun Mar 11, 2018 10:33 pm
Baffle picture.
Looks like i cutted all the 16 ports vents with the angles 1/8" too small... i'll do them again.. xd
Looks like i cutted all the 16 ports vents with the angles 1/8" too small... i'll do them again.. xd
Re: Simplexx 212 build w/ Pics
Posted: Mon Mar 12, 2018 12:47 am
I've been reading again today about elect caps on audio cross overs and everything i see on google seems to be in favor of other than electrolytics... Could anyone share the reason why an electrolytic is used in this cabinet design?
Re: Simplexx 212 build w/ Pics
Posted: Mon Mar 12, 2018 6:51 am
We use electrolytics as shunts to ground, where the lower ESR and higher price of polys isn't warranted. Beware of what you read on-line. Most of what you'll find is speculative, only repeating unfounded conjecture that they've seen elsewhere. There are whackos who'd have you believe that you should spend as much on caps as you do on drivers, and yes, $100+ caps exist.
Re: Simplexx 212 build w/ Pics
Posted: Mon Mar 12, 2018 2:02 pm
Ah ok, hm shunts are like a jumper, where it means it's connected to ground? Could you explain just a bit more i don't get it... :S That concept would not work with other than elect caps?Bill Fitzmaurice wrote: ↑Mon Mar 12, 2018 6:51 am We use electrolytics as shunts to ground, where the lower ESR and higher price of polys isn't warranted. Beware of what you read on-line. Most of what you'll find is speculative, only repeating unfounded conjecture that they've seen elsewhere. There are whackos who'd have you believe that you should spend as much on caps as you do on drivers, and yes, $100+ caps exist.
You mean the lower needed ESR is not garanteed with poly caps?
Thanks a lot, really appreciated
Re: Simplexx 212 build w/ Pics
Posted: Mon Mar 12, 2018 2:40 pm
Read this:
http://www.bcae1.com/xoorder.htm
You can use polys as shunts. They won't work any better, and they cost more, so why would you? I don't.
http://www.bcae1.com/xoorder.htm
You can use polys as shunts. They won't work any better, and they cost more, so why would you? I don't.
Re: Simplexx 212 build w/ Pics
Posted: Mon Mar 12, 2018 7:52 pm
Ok i will read it tonightBill Fitzmaurice wrote: ↑Mon Mar 12, 2018 2:40 pm Read this:
http://www.bcae1.com/xoorder.htm
You can use polys as shunts. They won't work any better, and they cost more, so why would you? I don't.
Thank you!Actualy it's relatively closely priced compared to the kits at speakerhardware and the ones at Solen, but at this point i just wanted to understand haha
Thanks again
Re: Simplexx 212 build w/ Pics
Posted: Tue Mar 13, 2018 11:02 pm
Ok so i tried that calculator and it seems i use it wrong because it doesnt generate the same values as the build document?Bill Fitzmaurice wrote: ↑Mon Mar 12, 2018 2:40 pm Read this:
http://www.bcae1.com/xoorder.htm
You can use polys as shunts. They won't work any better, and they cost more, so why would you? I don't.
Re: Simplexx 212 build w/ Pics
Posted: Wed Mar 14, 2018 7:09 am
The document was recommended to show you how crossovers work. The crossovers we used are optimized, not generic, so they won't have the same component values.
Re: Simplexx 212 build w/ Pics
Posted: Wed Mar 14, 2018 3:44 pm
Ah ok that calculator is like a recommendation startpoint then, i get it thanksBill Fitzmaurice wrote: ↑Wed Mar 14, 2018 7:09 am The document was recommended to show you how crossovers work. The crossovers we used are optimized, not generic, so they won't have the same component values.
But the caps for tweeters are not close to the values on that calculator isnt it?
The other ones seems close tho