Home » Sponsored » Pi Speakers » Gettin' down to Crossover Cases
Gettin' down to Crossover Cases [message #38886] Wed, 30 October 2002 13:37 Go to next message
DRC is currently offline  DRC
Messages: 169
Registered: May 2009
Master
Wayne, your 1602's just got here. They are something else!

Being just a tad impetuous, I'm using them crossoverless with a 1in dome coming in around 2k, "borrowed" from a system that's 94dB/w/m. In doing further reading, I see that folks (Dr. Edgar & others) view the 1602 as more like 94-95.5dB efficient for the range it's likely to be used in, so it's not a bad match just to get "a taste."

Can anyone tell me what I should be doing for the 3-way crossover using the 1602 x-ing over to JBL 2123 @ 300, x-ing over to the Eminence in a Martinelli horn at 3k? Since it's a 3 way using points higher and lower than usual, two drivers not spec'd in the std Pi docs, and the third in a different horn flare, I have no idea what parts of the standard Pi xover docs might or might not apply.

In other words: Duh! Help!

Thanks.

Keep your ears and your mind open.

Maybe you might try posting this over on the Hi E forum as well!(nt) [message #38888 is a reply to message #38886] Wed, 30 October 2002 15:09 Go to previous messageGo to next message
Garland is currently offline  Garland
Messages: 269
Registered: May 2009
Grand Master
nt
Re: Gettin' down to Crossover Cases [message #38889 is a reply to message #38886] Wed, 30 October 2002 16:45 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18756
Registered: January 2001
Illuminati (33rd Degree)
I recommend 300Hz and 1.6Khz crossover points, and use the π crossover configuration for the tweeter, exactly as on the two-way units. For the 300Hz point, the components used in a passive unit get a bit large, so it might be better to go active. But if you also want the option of using a single amp - and so need a passive unit - I have some suitable units being built right now, so let me know if you're interested. That way, you'll have the option of using the speakers either multi-amped or with a single amp.
Re: Gettin' down to Crossover Cases [message #38890 is a reply to message #38889] Wed, 30 October 2002 19:03 Go to previous messageGo to next message
bmar is currently offline  bmar
Messages: 346
Registered: May 2009
Grand Master
I'm in agreemant with Wayne. I cross my system just a little higher. 400 and 1900. Thats the range though. 300-500; 1.6k-2k
active you can dial it in nice. passive will cost a fortune for a 3way everytime you want to try something new. I would still say that even if ultimately you want a passive, you should start out with an active if you have the amps. this will get you reall close to the final passive components you will need.

Bill

Re: Gettin' down to Crossover Cases [message #38892 is a reply to message #38890] Thu, 31 October 2002 03:59 Go to previous message
Garland is currently offline  Garland
Messages: 269
Registered: May 2009
Grand Master
Dave, look's like your going to need a pair of Parabees built along with the Pi 4.5's! But then again there are those AN amps laying around...!

G.

Previous Topic: Height for the Pi 4
Next Topic: size, shipping, and pricing
Goto Forum:
  


Current Time: Mon Sep 02 01:15:19 CDT 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