I'm interested in building speaker cabinets using the Mark Audio Alpair 12P driver. Maybe the transmission line similar to the Mark Audio Alpair 7 you...
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brinesacoustics
Dec 14, 2012 3:25 am
I haven't played with the A12P yet. I'm working on the A10.2. The A12P will not go into a TL anywhere near as small as the A7.3. A A12P TL will be a...
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rpettigrew_us
Dec 15, 2012 5:16 pm
I would be interested in a A12p optimized flat pack cabinets. Either BR or TL floor-stander. Let me know when you have some time to look into it. Robert...
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brinesacoustics
Dec 15, 2012 6:01 pm
Robert, I'm about to go on holiday and will not get much more done before I leave. I can probably whip out a Modeled strawman in a couple of days and let you...
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rpettigrew_us
Dec 30, 2012 3:41 pm
Bob, Lets touch base again in Feburary or when you get some time to to cut a flat pack. Have a great holiday. Robert...
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brinesacoustics
Dec 30, 2012 4:09 pm
Robert, Don't know how this message slipped through the cracks, but it did. I guess thAt I will have to get a pair of A12P's and do some playing. I have a...
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Robert Pettigrew
rpettigrew_us
Dec 30, 2012 7:56 pm
Bob, I have a pair of A12P's driver's breaking in right now. Just need some cabinets for them. I would be interested in what you come up with as an optimal...
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Bob Brines
brinesacoustics
Jan 3, 2013 1:49 pm
Robert, Sounds good. Ping on me then. Bob...
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wdw6789
Jan 6, 2013 7:10 pm
... Bob, I also would be interested in an optimal design for the A12P's. These will be my next build to use with my low power SE tube amp. Thanks Daryl...
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brinesacoustics
Jan 11, 2013 12:55 pm
I have finished the modeling part of designs for a BR and a MLTL for the A12P. I won't be able to do test boxes for a while, but I would like to offer the...
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brinesacoustics
Feb 24, 2013 9:36 pm
If Clint C. is signed up here, make a post here. I tried to email you a reply but it bounced! Bob...
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mghall999
Feb 27, 2013 3:13 am
Bob, As I mentioned, I'm finally trying to finish up a pair of FT-1600 MkII I started ages ago. I'm to the veneering stage and have a couple of questions: 1)...
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brinesacoustics
Feb 27, 2013 3:28 am
Merle, ... There are versions of PVA glue specifically made for iron-on veneer. Titebond has one and there are others. unless you live in a megapolis, you may...
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mghall999
Mar 6, 2013 9:34 pm
Bob, A posting elsewhere (that I can't find at the moment) regarding the same technique for gluing veneer that you propose, has a chart that indicates that the...
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mghall999
Mar 7, 2013 2:10 am
This is the other post: http://www.ohio.edu/people/schneidw/audio/veneering.html I don't find anything on the Titebond site other than this PDF:...
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brinesacoustics
Mar 7, 2013 2:34 am
Merle, Second thing first: I apply one coat to the veneer and two coats to the box. I sand the box with 80-100 grit prior to the glue and nothing between...
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mghall999
Mar 7, 2013 12:33 pm
Ha! Seven years old. That's a good sign. I appreciate the clarification of what you do between coats, too. So far, my veneering effort has gone well. I...
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mghall999
Mar 14, 2013 10:35 am
Well, did end up with a few bubbles. Couldn't figure out why and finally realized that the bottom of my iron was cupped up in the middle such that it touched...
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mghall999
Mar 14, 2013 10:35 am
Bob, Realizing any effects would probably be very minor, are there any critical characteristics of the baffle? Like: can the surface have a texture? do the...
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brinesacoustics
Mar 14, 2013 3:38 pm
Merle, The surface texture of the baffle is irrelevant. You will read any number of posts that tell of the wonderful effects of various treatments. All are...
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brinesacoustics
Mar 14, 2013 3:39 pm
Merle, Two thinks: You should work from one edge/corner and then across the surface so that air is not trapped but is pushed out the open end. Also, you may...
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mghall999
Mar 15, 2013 2:18 am
Thanks, Bob! That helps. Merle...
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mghall999
Mar 15, 2013 2:18 am
I'm pretty confident the glue was spread evenly. Little foam roller does a nice job. My logic for ironing was to start in the middle of one end and work to the...
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brinesacoustics
Apr 6, 2013 2:40 am
I have completed testing of the M12-A12 and am pleased with the results. The demo model is in the shop acquiring a oiled black walnut finish and will debut at...
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ezavht
Apr 23, 2013 8:50 pm
Mr. Brines, A LONG time ago, you and I had corresponded about an MLTL design utilizing the 40-1354 Radio Shack speakers. I had built them and was very happy...
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brinesacoustics
Apr 23, 2013 10:07 pm
T.C., ... Gee, that too bad. Maybe Santa Claus will bring you a real computer! Kidding aside, the reason the PC has such a lock on the business market is that...
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ezavht
Apr 23, 2013 11:15 pm
... Bob, ... Heh....yeah, I get that a lot. What I don't get is problems with viruses/anti-viruses, plug anything (printer/camera/iPod) in and it just works....
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montobo
May 1, 2013 9:48 pm
Following a long hiatus, I am now back to finishing my LT-2000's (plywood, mostly baltic birch). They are still open on one side making the inside fully...
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brinesacoustics
May 30, 2013 2:13 pm
I have the page for the M12-A12 up now. Have a look: M12-A12. Bob...
