Home » Sponsored » Pi Speakers » Four Pi JBL Pro Using 2205 LF Motor
Four Pi JBL Pro Using 2205 LF Motor [message #34991] Tue, 05 February 2002 14:04 Go to next message
anna is currently offline  anna
Messages: 5
Registered: May 2009
Esquire
Hi Wayne:

Reading some of the history files, I note you were very high on the 2205 LF motor. These are still available .
Did you couple the 2205 with the 2410 HF driver?
I read the JBL spec sheets on these drivers. I would like to give it a go. What do you think? I did read the section on Obsolete Pi Speakers on your web site.
Do you still have the Data Package available for this obsolete speaker system? If yes, would you send them to me?

Regards,

Matt in Dayton

Re: Four Pi JBL Pro Using 2205 LF Motor [message #34995 is a reply to message #34991] Tue, 05 February 2002 16:14 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18789
Registered: January 2001
Illuminati (33rd Degree)
I loved the JBL 2205H. It was my favorite 15" woofer through the eighties. I didn't use the 2205 in a two-way configuration because it needs a lower crossover point. I wasn't particularly fond of the 2410 for hifi use either. But a three-way with a 2205 woofer, two 2105 midrange drivers and a 2405 tweeter sounds great! I used that driver set in a four π speaker and in a seven π cornerhorn configuration. That particular version was my most popular large-format loudspeaker at the time.
Yes Four Pi ! [message #34996 is a reply to message #34995] Tue, 05 February 2002 17:28 Go to previous messageGo to next message
anna is currently offline  anna
Messages: 5
Registered: May 2009
Esquire
Thank you Wayne.

Is it possible to use the 2205 in as 2-way configuration? if so, what HF motor do you recommend?

I appreciate your generosity and your willingness to share your knowledge. Please send the scanned plans for the Four Pi.

Regards,

Matt in Dayton



Re: Yes Four Pi ! [message #35000 is a reply to message #34996] Tue, 05 February 2002 21:10 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18789
Registered: January 2001
Illuminati (33rd Degree)
Sure, you can use the 2205 in a two-way speaker. Just use a tweeter that can be run below 800Hz.
Re: Yes Four Pi ! [message #35001 is a reply to message #35000] Tue, 05 February 2002 21:45 Go to previous messageGo to next message
Adam is currently offline  Adam
Messages: 419
Registered: May 2009
Illuminati (1st Degree)
Wayne.... How would you compare the JBL 2446 or Eminence PSD3003?

They both are damn well the same size as the motors on some of these larger woofers... *drools*

Adam

Re: Yes Four Pi ! [message #35003 is a reply to message #35001] Tue, 05 February 2002 23:03 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18789
Registered: January 2001
Illuminati (33rd Degree)
Funny thing is the diaphragm of a large compression driver is as large as the woofer in some mini-monitors.

To tell the truth, I can hear a difference in the JBL 2446 and the Eminence PSD3003. Even with compensation, the 3003 sounds a little "quashy." You know, the sound made when listening to high hats through something limited to response below 10kHz or so.

"Quaaaaash."

It's not bad, but I'd probably choose a different driver than the PSD3003.

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