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Old 12th August 2013, 01:38 PM   #1101
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Thanks! I'd planned to, but you know how that goes sometimes.

GM
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Old 12th August 2013, 05:24 PM   #1102
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Yeah, afraid so. Hope things get a bit easier at your end soon. No major issues here luckily, although I've got myself lumbered with having to work through a bunch of 19th Century carbons before they fall to bits. I think I'm going to need stronger glasses...

Last edited by Scottmoose; 12th August 2013 at 05:26 PM.
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Old 13th November 2013, 07:21 PM   #1103
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Metronomes! Just can get enough of 'em!

Had to build another pair for the Fostex FE103en drivers I bought early this year. I had tried them out in the Mets I built for the FE108eS and liked the sound. So here is the latest pair, adjusted slightly from the original formula used for the FE108eS, and with a different BSC as well.
L= 40"
Z(d)= 14"
S(0)= 1"x2.5"
S(l)= 4.5"x8"
port diameter= 2.2"
port L= 3.5"

BSC: 3 ohm Mills resistor & 0.6 mH inductor

Baffle is 3/4" ply that came with oak veneer (scraps from another project)
sides & back are 1/2" Baltic Birch ply (which I veneered with red oak, but with normal grain orientation)

Binding posts are artfully concealed on bottom by the port.

Photo below shows one of them next to my Pappa's TL (not that you wouldn't recognize the Met!)

They sound slightly different from the FE108eS, but rather similar. If you find the FE108eS a bit too peaky, then you might prefer the FE103en, which I find smoother. As always: YMMV.

Cheers, Jim
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File Type: jpg FE103enMet-s.jpg (33.0 KB, 338 views)
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Old 13th November 2013, 09:36 PM   #1104
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Jim, is that driver in the pic Fe 103 en? Looks like it has a different flange and cone colour!

Larry
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Old 13th November 2013, 09:59 PM   #1105
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Quote:
Originally Posted by larryldspkr View Post
Jim, is that driver in the pic Fe 103 en? Looks like it has a different flange and cone colour!
Larry,

I believe they have the Fostex metal grill cover over them.

dave
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Old 14th November 2013, 01:03 AM   #1106
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Dave is correct: those are indeed the FE103en with Fostex grills --which may only be marketed for the FE108eS, but which I was pleasantly surprised to discover fit the 103. They do make the 103 look very different. Should have said that up front, but hey, I'm getting old & forgetful!

Cheers, Jim
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Old 15th November 2013, 08:07 PM   #1107
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Ha ha, join the club! lol They almost look like Alpair 6p's. I worked up a bipole metronome as I have 4 A6p's, hope to build these at some point in time!
So many drivers, so little time!

Larry
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Old 16th November 2013, 04:37 PM   #1108
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Hi Larry,

Give the bipole Mets a try! I built a small pair of bipole Mets using Fostex FF85k--see post #997. (I mention this because this thread has gotten rather large and many folks may not have read through it all, much less memorized all the builds!)

After enjoying them for a while, I took them apart and moved the drivers back into their previous enclosures.

Cheers, Jim
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Last edited by Jim Shearer; 16th November 2013 at 04:54 PM.
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Old 23rd November 2013, 09:40 AM   #1109
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Originally Posted by ssportclay View Post
Interestingly, AmadeusMozart built a Met for the FF125WK and FF105WK. It seemed he may have slightly preferred the FF105WK but it was probably a close call. Look back at around 101.
I still prefer the FF105WK for sound and size. Top and bottom attached to enclosure and covered with upholstery cloth (slow drying water based contact glue)

The main differences between the 125 and 105 are that the 125 has a more noticeable peak and goes slightly lower (but hardly noticeable) in frequency. SPL wise they are much of the same since the 105 has a larger xMax than the 125. Prefer the mids on the 105. Should try out the FX120 in the 125 but recently have become locally hard to find. (plus more expensive)

I no longer have good use of my right hand - if I had I would try out a metronome with the FF165WK in it.
Attached Images
File Type: jpg DSC01000.JPG (207.7 KB, 179 views)
File Type: jpg DSC01001.JPG (141.2 KB, 172 views)
File Type: jpg DSC01002.JPG (303.9 KB, 166 views)
File Type: jpg DSC01003.JPG (493.7 KB, 161 views)
File Type: jpg DSC01004.JPG (63.0 KB, 41 views)

Last edited by AmadeusMozart; 23rd November 2013 at 09:48 AM.
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Old 23rd November 2013, 09:56 AM   #1110
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Quote:
Originally Posted by Jim Shearer View Post
Dave is correct: those are indeed the FE103en with Fostex grills --which may only be marketed for the FE108eS, but which I was pleasantly surprised to discover fit the 103. They do make the 103 look very different. Should have said that up front, but hey, I'm getting old & forgetful!

Cheers, Jim
The Fostex grills do fit the FF125WK except the little paper ring in the front has to be carefully removed to make it sit flush. One the 1FF05WK I made some grills.
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