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Old 21st August 2010, 11:03 PM   #101
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I would think closer to the 50lb - 55lb mark!
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Old 24th August 2010, 04:43 AM   #102
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Jim:

Where is a good place for the pocket handle with this new design? Do you have a name for this one yet?

Also what size hole for the ports in the flares did you use for your MCM 55-1740 tops? The pic you showed me of them on the other thread looks like you used pvc pipe. How long did you make the pipes? Also what electronics for the woofer and tweeters? Any other info you feel would help the build?

Thank you,
Mike
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Old 24th August 2010, 11:01 AM   #103
djk is offline djk
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JBL 265H-1 LF Driver, JBL 265H-1 Low Frequency Driver, JBL 265H-1, JBL MRX515M Replacement Driver

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Fs=39hz
Qts=.32
Qms=3.7
Qes=.35
Vas=170L
Pe=350
Re=5.4
X-max=6.5mm
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Old 24th August 2010, 12:19 PM   #104
jbell is offline jbell  United States
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Quote:
Originally Posted by mike james 533 View Post
Jim:

Where is a good place for the pocket handle with this new design? Do you have a name for this one yet?

Also what size hole for the ports in the flares did you use for your MCM 55-1740 tops? The pic you showed me of them on the other thread looks like you used pvc pipe. How long did you make the pipes? Also what electronics for the woofer and tweeters? Any other info you feel would help the build?

Thank you,
Mike
Pocket handle should fit very well directly below the 8" board.

I've built many tops, f you are referring to this top with the beta 12a-2 that's made to fit the PE 15x22.5 grills, the hole is 2" diameter which tunes port/cabinet to 80hz. That one runs the 16ohm senenium 220 and the goldwood pb500 horn with a 2.5hkz crossover. (That's another single sheet design, 2 tops, 1 sheet.) The top with the 1.5"x1.5" pvc ports was a mcm 55-1740 in a 12x12x24 box with a 6.5" long horn and 'shallow' piezo array. (piezo angle at 35, not 45 degrees)
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Last edited by jbell; 24th August 2010 at 12:25 PM.
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Old 24th August 2010, 04:29 PM   #105
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re: Jbells mini tapped
I'll be building a couple myself to try. Excellent fusion of ideas in a small package.
I would suggest possibly an alternate version that plays lower but gives out at 125 or so.
Under standard 15 with horn boxes (everyone has them) a pair under each would be quite a little system for most bar bands. Plus electric percussion could use a lower tuning.
Has anyone played with compression in this thing yet? It seems compression has helped me keep mine from getting blown by not-so talented engineers. Remember, these things get very interesting when cranked.
Kudos in spades to Jbell and company
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Old 24th August 2010, 06:00 PM   #106
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Jbell what is the name of the speaker you use in this tapped horn
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Old 24th August 2010, 06:36 PM   #107
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Eminence 3015LF I believe
Also known as a Kappa Lite. Watch the LF extension.
There is a 3015 (normal speaker), 3015LF (The correct one).
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Old 24th August 2010, 06:53 PM   #108
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Quote:
Originally Posted by screamersusa View Post
Eminence 3015LF I believe
Also known as a Kappa Lite. Watch the LF extension.
There is a 3015 (normal speaker), 3015LF (The correct one).
Thanks
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Old 24th August 2010, 08:38 PM   #109
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Thanks Jim,

The one I was interested in is the MCM 55-1740 in a 12" x 12" x 24" box. I still have several of the 1740 speakers and piezo's. What did you use for electronics(filter) for the piezo/woofer. Same as OT 12?

Thanks again for all your help Jim.
Mike
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Old 25th August 2010, 05:18 AM   #110
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Quote:
Originally Posted by screamersusa View Post
re: Jbells mini tapped
.
I would suggest possibly an alternate version that plays lower but gives out at 125 or so.
+1
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