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Re: Forward tweeters [message #39719 is a reply to message #39715] Sat, 04 January 2003 10:22 Go to previous messageGo to next message
wasteh202 is currently offline  wasteh202
Messages: 137
Registered: May 2009
Master
I made a cat-5 cable, but only one and have not used it enough to make any conclusions. I believe that it is probably suited beter for power amps with speakers that draw a high current 4ohm load like Maneepans or Carver ALS.

I think the magnet wire for speakers will work good for tube amps conected to sensitive speakers. I will be trying the magnet wire in the future myself.

Woops here too [message #39720 is a reply to message #39719] Sat, 04 January 2003 10:25 Go to previous messageGo to next message
wasteh202 is currently offline  wasteh202
Messages: 137
Registered: May 2009
Master
That should read "Magnepans", my typing botched that one up!, sorry about that if anyone was trying to figure out what speaker I was refering to.
Magnet wire [message #39721 is a reply to message #39719] Sat, 04 January 2003 10:27 Go to previous messageGo to next message
Jabberwock is currently offline  Jabberwock
Messages: 10
Registered: May 2009
Chancellor
I've tried magnet wire as a speaker cable in other applications and liked the results. It produced particularly good results with a pair of 6DN7-based parafeed SET monoblocks (a Bottlehead design rated at 5 watts) and a pair of Hawii 5.0 speakers (ported bookshelfs with a single Radio Shack driver).
Bad spelling day... [message #39722 is a reply to message #39721] Sat, 04 January 2003 10:29 Go to previous messageGo to next message
Jabberwock is currently offline  Jabberwock
Messages: 10
Registered: May 2009
Chancellor
That should read "Hawaii."
Re: 2 pi Tower Plans, me too please. [message #39725 is a reply to message #39716] Sun, 05 January 2003 04:33 Go to previous messageGo to next message
Scholl is currently offline  Scholl
Messages: 67
Registered: May 2009
Viscount
You might also try Jabberwocks topology replacing the 12AX7 with a 6H30 with 15K Rp, 240 Rc and 6.8K phase splitter resistors. Same NFB resistors. Also all poly caps, everywere. Adjust the power supply for 325 or greater B+ on the input.
2 pi's vs 4pi-pro [message #39726 is a reply to message #39709] Sun, 05 January 2003 06:12 Go to previous messageGo to next message
spkrman57
Messages: 522
Registered: May 2009
Illuminati (1st Degree)
Edwin,
The best way to put it, is that the 2-pi's go much higher on the top octaves, the bass seems to go about the same as the JBL 2226's, What the 2 pi's lack is the "larger than life" soundstage. I don't think the 2 pi's soundstage is very wide or deep compared to the 4 pi-pro's. When I play certain music with the 4 pi-pro's, I feel like I am there and can get up out of my chair and join the musicians. I hope nobody gets the impression I am ragging on the 2 pi's, the cost factor is unbeatable, but if you get the 4 pi parts, a definite improvement. I am still waiting for the Alpha 10 to break in though.
Regards, Ron
Plastic Lenses [message #39727 is a reply to message #39713] Sun, 05 January 2003 06:21 Go to previous messageGo to next message
spkrman57
Messages: 522
Registered: May 2009
Illuminati (1st Degree)
Jabberwock,
The lenses I described are thin pieces of metal or plastic that disperse the mid frequencies more than the highs (at least that is my theory), The ones I have came from pair of Sansui SP-9X something or other that I bought while overseas in the Navy back in the 70's and 80's, They are plastic but I think they do help tame the bright peizo sound some. Maybe someone on the forum here can find old JBL speaker system with the lenses and post link, I have sore throut and sinus problems today, so somewhat braindead.
Regards, Ron
Re: Tweeter Damping [message #39733 is a reply to message #39708] Sun, 05 January 2003 13:57 Go to previous message
Matts is currently offline  Matts
Messages: 359
Registered: May 2009
Grand Master
I "damped" the tweeter on my 2Pi's with my fav damping material- Xtreme Dynamat, which is made for car stereos. I put 3 small square pieces on the sides of the "horn" (facing inside of cab) and 3 narrow strips around the inside of the rim. I was trying to smooth the trebles out, but to my surprise it really tightened up the mids and the bass! I also used the stuff inside my CDP with incredible results.
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