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4 Pi baffle cutout question [message #52979] Wed, 17 December 2008 14:13 Go to next message
GarlandGarland is currently offline  GarlandGarland
Messages: 60
Registered: May 2009
Viscount
I noticed on the Eminence website where they specify a cut out dimension for the H290 horn of 10.3 inches by 4.9 inches, Yet, the 4 Pi baffle cut out document calls for 9.5 inches by 4.75 inches. Is there an error somewhere? Like maybe in my reading!

Thanks.
G.

Re: 4 Pi baffle cutout question [message #52980 is a reply to message #52979] Wed, 17 December 2008 14:48 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18783
Registered: January 2001
Illuminati (33rd Degree)

The lip on those H290's is so thin, you want as much meat as possible, especially if you route them flush. In fact, we put a half baffle behind the sections that are routed. Anyway, my point is I like to make that cutout as small as possible, which is why the plans show a slightly smaller cutout area.


Re: 4 Pi baffle cutout question [message #52981 is a reply to message #52979] Wed, 17 December 2008 15:01 Go to previous messageGo to next message
Matts_ is currently offline  Matts_
Messages: 17
Registered: May 2009
Chancellor
I've used Wayne's dimensions- works fine. I just put the horn lips on the outside and haven't routed or inset it. Plenty of room for t-nuts inside.

Re: 4 Pi baffle cutout question [message #52983 is a reply to message #52981] Wed, 17 December 2008 16:14 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18783
Registered: January 2001
Illuminati (33rd Degree)

The cutout Eminence suggests is too large. We did a few with the Eminence suggested hole size way back when, and it barely left enough edge to put mounting holes through. So I measured the horn and came up with dimensions that would allow flush fit but still had a maximum size lip. It's 9-1/2" x 4-3/4". Eminence should probably update their spec sheet to use this figure, because 10.3 x 4.9 is neither convenient nor useful. It's too big.


Re: 4 Pi baffle cutout question [message #52984 is a reply to message #52981] Thu, 18 December 2008 10:52 Go to previous messageGo to next message
reguax is currently offline  reguax
Messages: 21
Registered: May 2009
Chancellor
Regarding Horn assembly, I'm worried about driver weight
I just received a pair of PSD2002 and they are heavy!

Is the Horn the only place where the drivers are attached?

Thanks!



Re: 4 Pi baffle cutout question [message #52985 is a reply to message #52984] Thu, 18 December 2008 11:07 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18783
Registered: January 2001
Illuminati (33rd Degree)

The horn is strong enough to support the compression driver with no problems at all.


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