Dumb question - ME10 horn

[AJ]

Go ahead and laugh - I can take it.

I have a coupla B&C ME10 horns here and my lack of experience is really showing. The horns are square with a 90X60 degree coverage and I'm not sure which is 90 and which way is 60. There's a coupla raised bosses molded into the flange which probably indicate direction, but which way? There's two different curves but I don't know what a hyperbolic cosine horn looks like so I'm confused. There's gotta be a rule of thuimb here based on the two different profiles, but it's lost on me at the moment. Thanks for the help.

[Godzilla]

Sorry, i am not sure of the direction but was curious which tweeter you are using? Also, which woofer? Will this be a two way or three way?

TIA,
Godzilla

[AJ]

hey Zilla

It's using the B&C DE10 CD and it'll be used in a 4-way OB for a trial run. There's eight 12 inch woofers, two Eminence 10 inch Lil' Buddys, two Audax PR170s and the tweeter per side. Hope it can keep up.

[Godzilla]

Wow! Sounds like you are going all out. I hope it sounds great!

I wonder how much different it would sound if you eliminated the Lil Buddies and went from the audax to the eminence 12 inch woofers?

[AJ]

"I wonder how much different it would sound if you eliminated the Lil Buddies and went from the audax to the eminence 12 inch woofers?"

I'm already doing that now with a different tweeter and it sounds great. I'm just looking to experiment a little.

[bonjonno]

Wo AJ! You'll be king of the OB hill with that system. I'm collecting pieces for one Lil Buddy and ME10/DE10 per side; will add some 15's later but my boxed 10" subs for now. I'll need to know that orientation as well- glad you asked. One of the horn mavens should be along shortly with the answer. Can you tell what size and type of screw is needed to mount the horn?

Thanks,
Jon

[bonjonno]

on the ME10 PDF they show the mounting holes as being horizontal; that's likely the correct orientation.

[AJ]

"Can you tell what size and type of screw is needed to mount the horn?"

A number 6 or 8 will do just fine. The holes aren't counterbored, they're tapered, so a button head will want to put pressure on the holes at the edges of the screw - might setup for cracking. A typical wood screw with a tapered head might be better.

[bonjonno]

Thanks AJ. Wanted to order some black screws along w/ the horns so that's good to know.

BTW I was referring to the horn to driver mount holes for orientation.

[AJ]

"BTW I was referring to the horn to driver mount holes for orientation."

heh heh...yeah I looked at the pictures too. problem is there's 4 driver mounting holes so it kinda puts you back at square one. The raised bosses on the flange I think are the key, but they're just like the mounting holes - it can mean either way.

The profiles of the two curves should be obvious to any horney worth his salt; unfortunately, that's not me yet. I need at least another week before I know everything.