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Old 11th March 2013, 05:06 PM   #41
xrk971 is offline xrk971  United States
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Thanks Jim!
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Old 14th March 2013, 10:02 PM   #42
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Progress! Only a few days away now!

Photo shows the ersatz mini FH3 along with FE108eS Metronomes and FE127e Fonkens Prime.

Cheers, Jim
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Old 14th March 2013, 10:44 PM   #43
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Nice work Jim. They look great! I guess you are not going for the curved sides? Are you going to make a large plywood bottom base to mount everything on top of? If you make the bottom plywood piece with an expanding curved rear horn, it's not too late to make the curved mouth. In any event I think it will still sound good. I noticed that you made a straight cut on the triangular back wing rather than curved. You are very close - almost ready to cap them. I would put stuffing in bend region behind driver and very very little directly under driver as that will attenuate the horn output. The wood fronts look fantastic though. I am really looking forward to getting some thing 1/4 in thick plywood to make facer baffles on mine after seeing how good yours look.
Very nice work and looking forward to first sound!

Your metronomes look great too! If I were to make a Metronome with a Vifa TC9FD, I am thinking of using my Accidental MLTL technique Accidental MLTL Technique to size the enclosure base and top dimensios. From running WinISD for the FE108Sigmas, I think the TC9FD's can handle the 44 in high, I just have to adjust the volume based on a bass reflex.

Thanks for sharing.
X
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Old 15th March 2013, 04:08 PM   #44
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Hi X,

Thanks! The bottoms will be foam core. I went for straight lines so that if I get ambitious later, I will be able to cover the sides with veneer. Top will get another piece of 1/4" ply.

Those Mets were built a few years back when my wood working skills and tools were significantly more primitive than they are now. At the moment the FE108eS are still in their boxes after the Cornucopya experiment. The Mets have the FE103en in them now. Even though the enclosure isn't a perfect alignment for the 103, they are sounding very good. As with the 108, a sub is definitely worthwhile for many types of music.

Cheers, Jim
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Old 15th March 2013, 04:18 PM   #45
xrk971 is offline xrk971  United States
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You can veneer curved surfaces - veneer just bends right? You are thinking ahead about covering these with wood if you like them and they are a keeper. Good planning.

I saw your post in the Met thread recommending the FE103's sounds like a nice lower cost option. You don't find them too shouty?
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Old 15th March 2013, 05:00 PM   #46
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Hi X,

I think the FE103en is in the same class as the FF85wk for smooth, non-shouty behavior. The 103 is, IMO, smoother than the 108.

Cheers, Jim
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Old 15th March 2013, 05:03 PM   #47
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Have you buttoned up (glued shut) the horns with the remaining side yet?
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Old 15th March 2013, 05:25 PM   #48
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Nice job Jim,

That Sure-Ply underlay is great stuff for the baffles isn't it? It looks like you put a finish on them. What did you use?
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Old 15th March 2013, 05:27 PM   #49
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I thought that looked like Sureply when I saw the "X"'s on the inside. I like the finish you used too.
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Old 15th March 2013, 07:58 PM   #50
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Yes indeed. Sure-Ply scraps from the Cornucopya build. Don't know why, but Sure-Ply is cheaper & better looking than the hardwood veneered 1/4" ply that sits next to it at the local Lowes.

For finish I used some leftover Minwax Polyshades pecan color polyurethane. I decided to go a little darker than the clear polyurethane I have been using on the red oak (which I typically use).

Cheers, Jim
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