Confusion

[cosmos]

A current Ebay listing has made me question what I thought I knew...

In the auction (I am not affiliated with it) they are selling a pair of 2205H, which they are stating as comparable to 136H. There's the rub.. I believe the 136H and 2231H to be the same. However, the 2205H is not and appears to be closer to something else.

In my experience, most JBL drivers have relative well defined purposes.

For instance:

2235H and 136H/2231H appear to be no compromise extended LF woofers (subwoofers if you like that terminology)

2234H and 2225H appear to be a little higher output and not quite as low LF performance.

Where does the 2205H fit in? What does it do well?

EDIT: well I finally found some specs, but not T-S parameters on the 2205H and from what I see they look somewhat like 2225H.
Does anyone have T-S parameters for 2205H?

Thanks

[Mr. Widget]

EDIT: well I finally found some specs, but not T-S parameters on the 2205H and from what I see they look somewhat like 2225H.
Does anyone have T-S parameters for 2205H?Yes you are right... here is the complete list:

http://www.jblproservice.com/pdf/Thiele%20Small%20Parameters/Theile%20Parameters.pdf


Widget

[cosmos]

Yes you are right... here is the complete list:

http://www.jblproservice.com/pdf/Thiele%20Small%20Parameters/Theile%20Parameters.pdf
Widget

Thank you. That's a great list. However, what I don't see is a standardized efficiency (db/1W/1M). Is it mathematically computable from the specifications given on that list?

[Hoerninger]

... standardized efficiency (db/1W/1M). Is it mathematically computable from the specifications given on that list?

http://www.audioheritage.org/vbulletin/showpost.php?p=135360&postcount=2
Look for FORMULAS and USPL (definition and equation):

USPL := 20*log10(USPL_Volts*rho*Sd*Bxl/(2*pi*pref*Re*Mms))
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Peter