A10.2 plus Dayton RS180/225 FAST - diyAudio
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Old 5th January 2014, 07:57 PM   #1
PKI is offline PKI  United States
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Default A10.2 plus Dayton RS180/225 FAST

Hey guys, I am not experienced in speakers building, but have been reading a lot and have an idea.
Do you think it is possible to make a FAST design with A10.2 I have on hands and RS180/225 which are very high rated for the price. I really want to keep it low budget as my chances to make it 100% properly as a first projects are low :-). Oh, one more thing: Id like to make it passive. Thanks!
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Old 5th January 2014, 08:31 PM   #2
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Should work just fine. They have some ugly stuff above 5k but that should be fairly well filtered out in a FAST.

Do you already have the A10.2?

dave
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Old 5th January 2014, 08:49 PM   #3
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I do have a pair one member here gave me to try. They have a bit bent cones, but sounds fine I think. Any guidance where I should start then? So they will be two separate volumes for A10.2 and RS180(will they work or meter use 225?), right? Any software to simulate FAST?
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Old 5th January 2014, 09:11 PM   #4
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You might also want to look at the Silver Flutes. They are more affordable yet, don't have the HF resonance issues and reaches (at least the 7s) almost as low (in a box 2/3rds the size) -- the 8 is cheaper than the Dayton 7" thou.

The Madisound Speaker Store

Modeling the RS180 in an optiumum BR (my criteria), F3 60, F10, about 45 Hz.

Note that the A10.2 goes at least as low by itself.

dave
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Last edited by markaudio; 5th January 2014 at 09:30 PM. Reason: commercial conflict
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Old 5th January 2014, 09:26 PM   #5
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Thanks Dave! I know that A10.2 can play low, but I listen to quite a lot of hard stuff where I think FR are a bit compressed if the have to play low as well.
I will check the driver you recommend, thanks! I do not understand how I will have to match them by level, if I make them in separated and designed BR boxes.
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Old 5th January 2014, 09:41 PM   #6
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Quote:
Originally Posted by PKI View Post
I do not understand how I will have to match them by level, if I make them in separated and designed BR boxes.
You would be best to go active, passive requires very careful woofer selection to get enuff sensitivity. The A10 probably wants to be sealed or aperiodic for use as a mid-tweeter.

dave
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Old 5th January 2014, 09:53 PM   #7
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I was expecting that :-) Looks like the best solution :-)So, no way you can make it passive with silver flute woofers? Two of them? :-)
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Old 5th January 2014, 09:57 PM   #8
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What you need for passive, are woofer(s) that give you 3-6 dB greater sensitivity than the A10.2. Your XO should be somewhere 0.707-1 times the nominal baffle step frequency. You may well find goinf active less expensive than the cost of the big chokes & caps needed to get a passive XO right.

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Old 5th January 2014, 09:59 PM   #9
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Ok, start getting it, thanks! What about Eminence professional series? Alpha/beta 8-10?
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Old 5th January 2014, 10:14 PM   #10
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PKI, the eminence drivers need LARGE cabs and don't go low! High sensitivity though! I use the A10.2 solo in a MLTL, they go very low but I don't play them LOUD. I'm using a KT88 SE tube amp, for a ULTRA simple set-up it sounds VERY good!

Larry
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