(If you need any T/S like the Le param. that they don't use to publish, I usually ask Professor S. Silva from Selenium Brasil.)
You may even be able to ask for a new SUB with specs made by you.

The response frequency curve is away above 102dB@20K so that you don't need a super tweeter.

(DPD - stands for PTC)
DPD® - Driver Protection Device – including a PTC and an HPCCR resistor, this system assures longer durability at eventual overcharge.

The original .pdf for the 2" SELENIUM D3300Ti DPD is here:
http://www.seleniumloudspeakers.com/site2004/catalogo/pdf/driver_titanium_D3300tidpd_new.pdf

We will know your report about the drivers and some news about your new Master Speaker design for Concert Halls.

• http://www.partsexpress.com/pe/pshowdetl.cfm?&PartNumber=264-228&DID=7