This is a real problem, they don't seem to have a lot of measured SPL charts of their designs.On his thread
about this controversy (tapped horn or bandpass) Marc.O only give simulations again.
Now, need to place an order for an RCF LF18G401 for an easy to buid box and ask my audiomatica clio pocket for the result.
Titan 48 make them laught a lot
They thinks perhaps that's only old design for old people. We are in the 21st century now, we have 21 " !
One of them know the LAB Horn of Tom Danley (designed in 2000 or so as a free gift to diy'ers) and seems to appreciate it :Marc.O about this design
Développé par Tom Danley (patron de DanleySoundlabs, designer des Servodrive et titulaire d’un brevet récent sur le Tapped Horn, rien que ça!), ce pavillon descend à 30Hz. Mais la complexité de ce caisson et le prix des HP en rebutera plus d’un.
Developed by Tom Danley (owner of DanleySoundlabs, designer of Servodrive and holder of a recent patent on the Tapped Horn, nothing else!), This pavilion goes down to 30Hz. But the complexity of this subwoofer and the price of the HP will reject more than one.
Measured charts from Bill :
But "specialists" know in France that horn sound cavernous, have problem with close load and the warm-up faster HP and nothing under 60Hz as they say.
Very curious to see an MTH-46 against a Lab Horn.
Authorized builder, France
Fabricant autorisé des designs Bill Fitzmaurice en Francehttp://www.fabrication-enceinte.com