PDA

View Full Version : JBL L200B Port Size


Medicine_man
10-23-2016, 02:27 PM
Hi! Can some one give me some help with the port size for L200B. Cant find it anywere. Thanks
speakerdave
10-24-2016, 07:33 PM
Hi! Can some one give me some help with the port size for L200B. Cant find it anywere. Thanks

You may need to find someone who owns those speakers and get him or her to measure them for you. JBL usually does not publish that spec, and I've never had a pair. Sorry.
Medicine_man
10-25-2016, 02:47 AM
You may need to find someone who owns those speakers and get him or her to measure them for you. JBL usually does not publish that spec, and I've never had a pair. Sorry.


I have some information about the port length, but Im not sure if it is correct.
hjames
10-25-2016, 01:12 PM
Hi! Can some one give me some help with the port size for L200B.
Cant find it anywhere. Thanks
Sold mine a few years back - nothing to measure ...
Medicine_man
10-25-2016, 01:22 PM
Sold mine a few years back - nothing to measure ...

May be it will be easier to figure out port legth for JBL 136A. The cabinets are about 5cubic feet. I think the measurements will be quite close.
audiomagnate
10-25-2016, 06:41 PM
Try a 13 sq in duct 4 1/2 in long.


Shouldn't it be the same or extremely close to the port in a 300? Same woofer, same or extremely close to the same size box after all. 4.25" long with a 4" diameter.
Mr. Widget
10-25-2016, 11:56 PM
Shouldn't it be the same or extremely close to the port in a 300? Same woofer, same or extremely close to the same size box after all. 4.25" long with a 4" diameter.This sounds about right... perhaps a bit longer. If I had BB6 running I give it a go.

Anyone still out there with L200Bs?


Widget
Medicine_man
10-26-2016, 01:23 AM
Shouldn't it be the same or extremely close to the port in a 300? Same woofer, same or extremely close to the same size box after all. 4.25" long with a 4" diameter.

As I understand correctly the port should be

10.80 cm long

10.16 cm diameter.
audiomagnate
10-27-2016, 07:52 AM
Shouldn't it be the same or extremely close to the port in a 300? Same woofer, same or extremely close to the same size box after all. 4.25" long with a 4" diameter.


As I understand correctly the port should be

10.80 cm long

10.16 cm diameter.

That's what I got with a ruler on my 300's. My buddy has 200B's, I'll ask him to measure his if no one else has a definitive answer.
Medicine_man
10-27-2016, 08:16 AM
That's what I got with a ruler on my 300's. My buddy has 200B's, I'll ask him to measure his if no one else has a definitive answer.

OK. Lets see if some one could help with this =)