Frugel-Horn Mk3 Builds & Build Questions

[doubtingthomas]

I'm very intrigued, how about four together, no partitions internally with a single large driver in the middle, say an fe206en? I know this is moving away from a Frugal horn but it's interesting.

[Poultrygeist]

Having built 4 I'm half way there but could my completed ones be joined together?

[planet10]

Originally Posted by doubtingthomas

I'm very intrigued, how about four together, no partitions internally with a single large driver in the middle, say an fe206en? I know this is moving away from a Frugal horn but it's interesting.

You would end up putting a driver with lower Q & Fs into a box still tuned for a 4"driver (because it changes to a half-wave design instead of a 1/4 wave design (length dimensions need to be double for the same tuning) it is theoretically the same as the 4 individual FH3), so you would likely end up with less bass than FE126En.

To make the larger driver work you need to do increase path length -- something like Vulcan.

dave

[doubtingthomas]

Funny enough, I've built a pair of Vulcans and love 'em, as we speak I'm finally after seven months finishing them piano black.

[Scottmoose]

The dangers of listening before finishing I fear...

[zman01]

Originally Posted by doubtingthomas

Funny enough, I've built a pair of Vulcans and love 'em, as we speak I'm finally after seven months finishing them piano black.

Originally Posted by Scottmoose

The dangers of listening before finishing I fear...

Happens most of the times if you've got a winner on your hands!

[doubtingthomas]

That's absolutely it, i couldn't bring myself to unplug them.

[Resetter]

I have a question to dampning, would there be any effort into useing some bitumen on the rear of the baffle, behind the driver?

Still have a sheet left over from dampning the car doors its a nice heavy bitumen with an aluminium liner.

[Scottmoose]

Not really. The panels are quite well braced, so it's not likely to bring much to the table.

[planet10]

Bitumen adds mass without adding stiffness, lowering the frequency at which the panel will resonate making it more likely to get excited, and lower the Q making the resonance more audiable if excited.

dave