microTower bipolar ML-TL for CHR-70 or EL70 - Page 30 - diyAudio
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Old 11th July 2011, 11:11 PM   #291
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Quote:
Originally Posted by planet10 View Post
The volume of a line is a cross-section & a length. In essence an appropriate volume is found, divided by the length to get a cross-section. With tapers & such, a bit more complex than that thou.

dave
Yes what I thought; I used the program supplied on Madisound and it gives me a volume v close to what I had assumed. But some designs, especially a tabaq design I saw, has a very large internal volume for the driver used. I would have thought an optimum volume tapered line is more suitable for small FRs ie adding some back pressure for the cone
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Old 11th July 2011, 11:45 PM   #292
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Only modeler i'd consider would be MJK.

dave
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Old 12th July 2011, 07:30 PM   #293
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Only modeler i'd consider would be MJK.

dave
madisound one gives some useful info. If i get this build past concept stage I will def use the MJK one

Last edited by Bill poster; 12th July 2011 at 07:33 PM.
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Old 14th July 2011, 06:10 AM   #294
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Planet10,

You have big expirience with bipolar speakers, I`d like to ask your advise.

I know and like all good features of bipolars, but also observed less exact localisation of the images. Scene is wide and deep, but images are more duffuse than usually.

Did you observe the same feature in your bipole projects?
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Old 14th July 2011, 07:16 AM   #295
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Yes, but very room/placement dependent.

dave
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Old 14th July 2011, 07:26 AM   #296
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if I can have 1.5 meters from back wall - will localisation degrade essentially?

If I make back driver offset - close to floor- will it increase degradation of localisation?
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Old 19th July 2011, 01:13 PM   #297
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I finished my MTs this morning. They are covered with cherry veneer with a clear finish. The walnut trim at the bottom was dictated by the size piece of veneer I bought, which was 96" long. Since the MTs are a hair over 33" tall, the math didn't work for full coverage so I opted to add the contrasting wood.

I burned in the drivers for about 180 hours before assembly and they sound really sweet right off the bat. I am pleasantly surprised at the bass - not quite as good as my Half Changs, but very respectable nonetheless.

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Old 19th July 2011, 01:34 PM   #298
zman01 is offline zman01  Bangladesh
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Bobtrancho,

Excellent work. Very elegant and professional looking speakers. Good to see the Micro Tower club growing . The speaker feet you have are shaped exactly like mine, but better looking! Your timing is impeccable also - you've finished within the 2 week estimated time frame you mentioned earlier.

-Zia

Last edited by zman01; 19th July 2011 at 01:41 PM.
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Old 19th July 2011, 03:43 PM   #299
evanc is offline evanc  United States
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those look great. I would be very happy with something that good looking in my house....
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Old 19th July 2011, 04:31 PM   #300
chrisb is offline chrisb  Canada
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Quote:
Originally Posted by Charcoal View Post
Planet10,

You have big expirience with bipolar speakers, I`d like to ask your advise.

I know and like all good features of bipolars, but also observed less exact localisation of the images. Scene is wide and deep, but images are more duffuse than usually.

Did you observe the same feature in your bipole projects?
Quote:
Originally Posted by planet10 View Post
Yes, but very room/placement dependent.

exactly what makes them work so well in our own wide / deep open plan space

the Frugelhorns work very well here too, but don't quite have the aesthetic acceptance of the MTs

something like the Pensils or any of the 'Kens can definitely out-image the MTs, but only when the placement of major furniture pieces is disrupted - and maybe you can imagine how often that's possible
dave
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