XL is the answer to diyers request for a Frugel-Horn for larger drivers. It took
sometime to get it small enuff to be acceptable.
It was introduced at the August 2013 VI diyFEST with both Mark Audio Alpair 10.3
and Alpair 10p -- the originally targeted drivers.
A number of other drivers have proven to work, Fostex FE168eS, FF165wk, FE166En among
Frugel-Horn XL main discussion
thread: Frugel-Horn XL for Alpair 10.3/10p
Unlike the other Frugel-Horns we are asking for a minimum $10 donation to diyAudio.com for the plans. Builders are
encouraged to contribute at least feedback to help improve & fine-tune the Frugel-Horn.
Commercial builders are required to fullfil a (very) few requirements: Use
for larger drawing>