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Old 25th February 2004, 10:33 PM   #1
michael is offline michael  Australia
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Default Dayton Titanic in Australia

Hey everyone, I have been itching to upgrade my subwoofer ever since i found that 105db doesnt Sound as loud as it does on paper. I have a peerless 850146 in a 100L ported box and i yearn for more power. I was looking at the Shiva but then i was drawn away by the fact that our exchange rate is very good at the moment so ordering dayton from the US might actually be cheaper for what i could get.
I had a look and found the Dayton 15" Titanic mkIII, its attribute that appeals most to me is 91db and 20mm xmax yay. I have a 200w 4ohm plate amp and it would be great to have a higher efficieny subwoofer. but this driver says 91db 2.83v. whats this equate to compared to the shiva (easier to get and smaller box).
Sorry if i seem a bit vauge but im shopping
thanks guys
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Old 25th February 2004, 10:42 PM   #2
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http://www.adireaudio.com/diy_audio/...re/tempest.htm

The Tempest is $50USD cheaper than the Dayton Titanic MkIII, though has a slightly lower sensitivity. The Tempest has a 33mm peak-to-peak excursion, which may or may not be higher than the 20mm xmax of the Titanic, because it doesn't say if it's peak-to-peak or one-way.

EDIT: The Titanic supposedly has a displacement of over 3L, which I assume to be p-p. Since the displacement of the Tempest is only about 2.5L p-p, I guess the p-p excursion of the Titanic is 40mm.

Both drivers will serve you well.
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Old 25th February 2004, 10:47 PM   #3
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Might I ask how you plan to build the enclosure?
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Old 25th February 2004, 10:48 PM   #4
michael is offline michael  Australia
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Yeah i know the tempest stats, the daytons xmax is one way, so 40mm p-p. Im also wondering though what the difference is between 89db 1watt and 91db 2.83v when running at 4ohm.
I also wanted to know if anyone knows of an austalian distributor for dayton.
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Old 25th February 2004, 10:55 PM   #5
michael is offline michael  Australia
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I will build it from wood......MDF to be more specific, ive done this twice before so this will just be a bigger version again. first was 30L second was 100L, maybe this will be over 200L.
I would brace it accordingly etc, once i choose the driver i will start worrying about construction logistics.
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Old 25th February 2004, 11:00 PM   #6
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could always put the peerless in a horn... or make my horn.. its only like 1000 litres but it does give 130dB down to 30Hz... lol before room gain

Click the image to open in full size.
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Old 25th February 2004, 11:02 PM   #7
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if 105db doesnt quench your bass thirst (like me)
you must either
- buy more units and more amps
-build a basshorn and get 125db in house.

2.83v into 4ohm = 2watts
2.83v into 8ohm = 1watts
proof
P= V^2/R

so 4ohm woofers show the 2.83v sensitivity making it look 3db better than it is :P

dont go crazy about efficiencys,manufacturers measure them different ways,so only compare between various models not companys, you can easily cheat by putting a boundary nearby and get more Db....

If i were you and wanted SPL id go for a basshorn assuming you can fit one.

in conclusion: you would need to buy another amp,and perhaps drive 2 15"s with 400w each to get the SPL you need CLEANLY in my opinion
and even if the dollar is good,youl pay shitloads for shipping still,like 100$ for 1 woofer.
You can get lab12s from eminence distributors for 440$ LOL when their 150$ US at PE..


Cheers!
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Old 25th February 2004, 11:12 PM   #8
michael is offline michael  Australia
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Thank mike, im not sure that 125db is what im aiming at, im just annoyed that the peerless reaches xmax at 1/3 volume (200w 4ohm, 162w 8ohm) so i assumed that by getting a driver with much higher efficiency and displacement that id be happy.
thanks mike
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Old 25th February 2004, 11:18 PM   #9
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A word to the wise. None of these drivers are anywhere near flat. You'll note that they don't make actual frequency response graphs available--only graphs of simulations, which isn't the same thing at all. The actual response at 20 Hz is 10-15 dB down from the 80-100 Hz region. It's a long, slow slope downhill; falling at approximately 6 dB/oct in a normal T-S enclosure.
Loud? Yes.
Deep? No.
Count on using judicious EQ if you expect to get anything like flat response. You have been warned.

Grey
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Old 26th February 2004, 02:09 AM   #10
rabbitz is offline rabbitz  Australia
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Quote:
Originally posted by michael
I also wanted to know if anyone knows of an austalian distributor for dayton.
Hi Michael

Try the Louspeaker Kit as they use Daytons in some of their stuff and also have bits from Parts Express.
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