BillFitzmaurice.info

I realize that between HP and LP, as well as the folds reducing higher frequencies, that the tubas are designed to run <80-100 hz. BUT, if space were no problem (that's a mighty big but), how well would a straight horn work for accurately reproducing frequencies above 100? Maybe even down to a more reasonable 60 hz or so. Could a GOOD sounding horn be made from a single driver (such as one of the more hifi Fostexes, such as an FE206E:

http://www.madisound.com/pdf/fostexdrivers/FE206E.pdf ?

Also, what about a SLA, SLA center, or TLAH from these, without the tweets? Yes they are expensive, but I'm removing limiting factors here, at least individually.

well, when you look at the Omnitop, what do you see? a straight horn plus blistering sensitivity above 150 hz. I dont know enough about horns to tell you how a subwoofer would work above 100hz with a straight horn though.

Rich4349 wrote: Could a GOOD sounding horn be made from a single driver

No. Horns are low pass devices, the lower they go the less the extension is on the high end. That's why nobody does a full range straight horn. The DR horns actually work almost as well as a straight horn, so much so that the improvement from using a straight horn would be slight. About the best you can do with a single driver is a rear-loaded horn, which are commonly loaded with Fostex drivers. But they all suffer from a midbass dip, where the front and rear waves meet 180 degrees out of phase.