According to WIN ISD...

[Eaulive]

JBL 123A in a 475l enclosure tuned to 20.5 Hz gives a flat response down to 20Hz. :blink:

Am I dreaming?

[spkrman57]

Group delay
Phase plot
Excusion limits

I would say that a 123A would be over the Xmax of the driver at 20hz in that configuration.

3 to 4 cu ft would be the max I would use unless you are using less than 5 to 10 watts to power it!

Just my 2 cents worth...

Do a search on this forum for 123A and see what others have written...

Regards, Ron

[Eaulive]

Group delay
Phase plot
Excusion limits

I would say that a 123A would be over the Xmax of the driver at 20hz in that configuration.

3 to 4 cu ft would be the max I would use unless you are using less than 5 to 10 watts to power it!

Just my 2 cents worth...

Do a search on this forum for 123A and see what others have written...

Regards, Ron

Instinctively I knew something was wrong in this case, that there was other considerations but it's the first time I use this software so basically I wanted to make sure :applaud:

Thanks.

[pos]

Try WinISD Pro (currently alpha) and you will be able to see driver excursion

[JoMoCo]

Anybody using this version to good effect...and care to comment about the differences between this and the standard 0.4x version...or have a different program you would care to reccomend instead...what are you actually using out there...:hmm:

I have a pair of 123A 's and would like to optimize a cabinet for them...possibly with the Zilch Labs microbrew low wank ewaves...:dancin::banana::dancin: