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Old 15th May 2004, 12:56 AM   #1
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Default 6.5" Bass TL?

I want to use 2 6.5 or 2 8" drivers for my HT. Anyone have a link to a really inexpensive (20$ or so) TL bass project with good, tested results? Think 2 of them will be enough?
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Old 15th May 2004, 01:02 AM   #2
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I was thinking something along the lines of the Dayton Al 7", dayton 6.5 or the dayton 8". They are all under 20 each. I dont need to get massive loud, but i would like good low frequency responce. Down to 25 or so Hz.
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Old 15th May 2004, 01:46 AM   #3
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Let's see... you want to get down to 25Hz at a respectable level for less than $10 per driver, eh?
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Old 15th May 2004, 05:47 AM   #4
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no, less than or a little more than 20 or a little more a driver. If you noticed, what i listen are 13-18 each.
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Old 15th May 2004, 09:31 AM   #5
sreten is offline sreten  United Kingdom
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Your goal sounds a little unrealistic, really depends on your
placement for proper use of room gain, and your lowest
room mode frequency, < 30Hz is certainly possible.

However I'd suggest building the Dayton D3

http://www.speakerbuilder.net/web_fi...D3/dayton3.htm

In these cabinets :

http://seas.no/thor.htm

sreten.
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Old 16th May 2004, 01:51 AM   #6
GM is offline GM  United States
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No proven design, but you got me curious about the el cheapo 8" (295-310), so using PE's measurements I did a dual driver extended max flat alignment ML-TL (forget getting any useful output to 25-30Hz from a TL with this driver):

L = 59.78"
WxD = 98.854"^2 net
driver down 21.125"
4" dia. x 6.5" long vent near/at the bottom
0.2lbs/ft^3 stuffing density
all dims i.d. (inside)

Assuming the specs are ~accurate, this sims anechoically flat to ~31Hz with a ~25Hz F3, so some BSC will probably be required if not up against a wall or near a corner. If it's a bit boomy from room gain then some stuffing down by the vent and/or a longer vent will roll it off to suit.

GM
Attached Files
File Type: zip dayton 295-310 max flat - long.zip (74.2 KB, 19 views)
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Old 16th May 2004, 03:38 AM   #7
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Whats the lowest audible frequency? I think 30 is fine, just making a small HT, so wanted to stick with it for the sub.
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Old 16th May 2004, 03:55 AM   #8
GM is offline GM  United States
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Depends on how loud it is. 16Hz is audible in my room, but this is with four corner loaded 15". Unless you have a very large and/or open room, there should be enough room gain to push F3 to below 20Hz, enough for a small HT.

GM
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