Home » Sponsored » Pi Speakers » Since I don't have enough complexity in my life...
Since I don't have enough complexity in my life... [message #68463] Sun, 03 July 2011 21:16 Go to next message
Bill Epstein is currently offline  Bill Epstein
Messages: 1088
Registered: May 2009
Location: Smoky Mts. USA
Illuminati (2nd Degree)
...I'm thinking about re-doing the new speakers crossover and could use some input. That and House is over and I'm bored.

The only thing we know about the woofers is that they're 12" and have the Altec ( b-b-but they're Utah!) propensity toward what Spkrman calls "bungee cord" bass. Cabinets are sealed so both those issues are more or less not a factor.

The tweeter specs:

Impedance 4 ohm
V.C. inductance 0.05 mH
Free air resonance Fs 600 Hz
Sensitivity 2.83V/1M 93 dB
Qms 2.2
Qes 0.9
Qts 0.65

Currently I just have a .6H coil on the woof and a 20uF cap on the tweet, taking advantage of it's very low FS vs. the unknown specs but perty good sound of the woofer. I wonder if a Butterworth or perhaps even an L-W, crossed higher is worth the trubble.

Is there any info here that would allow a judgement short of building the new x-over?
Re: Since I don't have enough complexity in my life... [message #68464 is a reply to message #68463] Sun, 03 July 2011 22:44 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18783
Registered: January 2001
Illuminati (33rd Degree)

I dunno, Bill. I mean, you started about the same place I think I would have started. I would expect that to be at least in the ballpark. But I'm not sure where you would go without more info.

Re: Since I don't have enough complexity in my life... [message #68491 is a reply to message #68464] Wed, 06 July 2011 10:18 Go to previous messageGo to next message
SteveBrown is currently offline  SteveBrown
Messages: 330
Registered: May 2009
Grand Master
Bill, time to invest in a woofer tester! And when you're done with it, you can let me borrow it, I've got a couple that need to be tested, too!
Re: Since I don't have enough complexity in my life... [message #68492 is a reply to message #68491] Wed, 06 July 2011 16:44 Go to previous messageGo to next message
Bill Epstein is currently offline  Bill Epstein
Messages: 1088
Registered: May 2009
Location: Smoky Mts. USA
Illuminati (2nd Degree)
Sorry, been investing in Medical Futures. I pay the Doctors, I have a future. Laughing Laughing Laughing Laughing Laughing Laughing Laughing
Re: Since I don't have enough complexity in my life... [message #68493 is a reply to message #68492] Wed, 06 July 2011 17:55 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18783
Registered: January 2001
Illuminati (33rd Degree)

That's cracks me up, but now that I think about it, it's kinda true. I think that's pretty the case for all of us in this crowd.

http://audioroundtable.com/images/Laughing_Felix.gif
Previous Topic: Pi 2 towers with H290 - doable????
Next Topic: Speaking of Towers, Wayne...
Goto Forum:
  


Current Time: Tue Nov 05 14:43:00 CST 2024

Sponsoring Organizations

DIY Audio Projects
DIY Audio Projects
OddWatt Audio
OddWatt Audio
Pi Speakers
Pi Speakers
Prosound Shootout
Prosound Shootout
Miller Audio
Miller Audio
Tubes For Amps
TubesForAmps.com

Lone Star Audiofest