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Old 13th August 2011, 02:20 AM   #41
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Originally Posted by borispm View Post
Hi Mark,
City never sleeps, and to be exact, teens never sleep.

I have done some Googling on the MAOP and it seems the process is very similar to anodizing, except it needs far higher voltage, uses a different electrolyte (diluted alkaline in MAO, sulfuric acid in conventional anodizing) and the microstructure can be tailored to suit the application.

If the oxide coating is semi porous, it should be able to be dyed just like anodized aluminum, but I suspect that is not the best idea around as it might change the damping properties of the coating. Imagine packing up holes in a sponge, the sponge will be stiffer. Also, the MAO process seems to be REALLY EXPENSIVE, so I don't see much benefits of risking.

Masking prior to MAO is possible though, but definitely not with markers! Maybe acrylic based paint?
Yes, re micro-structure. We're using 2 different electrolytic materials. And yes, not filling the porous outer layer is desirable, although like all things, some guys might want to experiment. The downside is the higher cost of the MAOP so not sure how many guys would want to risk. Dave at Planet 10 would have the skill to do it, possibly adding part of his Enabling (dots).
Cheers
Mark.
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Old 13th August 2011, 02:23 AM   #42
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Originally Posted by welborne View Post
Hi Mark,
Very nice to see you keep working and improving on these wonderful drivers. My pair of Alpair 10 is still serving nicely at home. Well done.
ciao.
Hi Coleman,
Good to hear from you. Hope life is treating you well. I think Tony's organising another listening event. Hope you can make it. See if you can bring more audio guys with you. The more feedback, the better. Now is the time when "tweaking" can be done if guys need me to do more on this variant.

Cheers
Mark.
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Old 13th August 2011, 05:53 AM   #43
chrisb is offline chrisb  Canada
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Originally Posted by markaudio View Post
Hi Coleman,
Good to hear from you. Hope life is treating you well. I think Tony's organising another listening event. Hope you can make it. See if you can bring more audio guys with you. The more feedback, the better. Now is the time when "tweaking" can be done if guys need me to do more on this variant.

Cheers
Mark.

This is the part that amazes me most about what Mark is doing - when is the last time any of us remember an audio designer / manufacturer inviting this type of discourse / product refinement?

Sure we've fantasized about it, but to actually have it happen is pretty damned special.
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Old 13th August 2011, 02:06 PM   #44
mp9 is offline mp9  United States
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Old 13th August 2011, 02:18 PM   #45
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Off topic, but what about MAOP on the A7.3? I have some EnAbled versions coming from Dave, who seems to believe these are the creme of the MA crop. I will be able to directly compare the A7.3 with 10.2, with the exception of the A7 being enabled. Is it reasonable to thnk EnAbling process Dave is doing yields similar results?
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Old 13th August 2011, 03:45 PM   #46
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Is it reasonable to thnk EnAbling process Dave is doing yields similar results?
No. But it might simplify the process. If MOAP comes to fruition it will present some real challenges to treat.

dave
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Old 13th August 2011, 03:54 PM   #47
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Steady on guys -Mark hasn't even finished this one yet. Give him chance.

Assuming the A10MAOP gets the green light (which looks likely) to be produced as a limited / special edition unit, I suspect we'll see similar limited edition MAOP versions of the next generation Alpair 12, and possibly of the Alpair7.3. I doubt it would be worth it for the Alpair6, since it's probably too small to be significantly affected.
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Old 13th August 2011, 04:06 PM   #48
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I doubt it would be worth it for the Alpair6, since it's probably too small to be significantly affected.
That is yet to be seen, but it would make an A6 at least as expensive at retail as the Audience A3 and probably a number of more times as expensive to build. ie may not be practical market wize.

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Old 13th August 2011, 04:16 PM   #49
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Quote:
Originally Posted by planet10 View Post
That is yet to be seen, but it would make an A6 at least as expensive at retail as the Audience A3 and probably a number of more times as expensive to build. ie may not be practical market wize.

dave
I am not sure though. The cost of MAO goes up exponentially with size of cone, so maybe it's not as expensive. I just guess so, no real prove.

Audience A3 retails for $200 in Partsexpress now, yet the standard Alpair 6M is still $56 on Madisound, so I suspect the MAO version won't be more expensive than $200.

And again, I really think Mark should roll out square frame drivers again for the line array fans.

Last edited by borispm; 13th August 2011 at 04:19 PM.
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Old 18th August 2011, 04:33 PM   #50
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In terms of driver performance, does the 10.2 MAOP have the resolution capabilities of the 7.2? The range that interests me most is > 300hz.
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