6'' to 7'' woofer recomendation? - diyAudio
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Old 8th April 2009, 02:11 PM   #1
GOWA is offline GOWA  Canada
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Default 6'' to 7'' woofer recomendation?

What is your opinion? I'm looking for a woofer with these features for a 2-way.

Price under $100.00 USD
8 Ohm
Good bass to about 40 Hz
Cross at about 2K or above
86dB or above
Good power handling
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Old 8th April 2009, 03:24 PM   #2
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40hz to 2k? I'd choose aluminum woofer such as
http://www.madisound.com/catalog/pro...roducts_id=818
with active 48db/octave + 7k notch crossover.
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Old 8th April 2009, 03:31 PM   #3
GOWA is offline GOWA  Canada
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I think the L18 is better crossed at 1.7 or less.
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Old 8th April 2009, 03:37 PM   #4
Mark Kravchenko --- www.kravchenko-audio.com
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Default Two possibilities

I've used a bunch of these over the years. Great midrange and decent bass. Goes high enough for your spec.

http://www.parts-express.com/pe/show...number=297-305

If you want to modify your spec try the following crossed over around 800 hz

http://www.parts-express.com/pe/show...number=264-712

plus this

http://www.creativesound.ca/details.php?model=SDX7

The lower combination will knock your socks off.

Mark
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Old 8th April 2009, 04:13 PM   #5
sreten is online now sreten  United Kingdom
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Hi,

There are plently of choices of 6.5" for a 2-way.

Most of the sensible options are considered here :

http://www.geocities.com/woove99/Spkrbldg/

/sreten.
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Old 8th April 2009, 05:20 PM   #6
DcibeL is offline DcibeL  Canada
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Quote:
Originally posted by GOWA
I think the L18 is better crossed at 1.7 or less.
Correct, however the P18 does not have the distortion issues due to the lack of a hard cone. I usually shy away from poly cones just because the plastic cone look doesn't appeal to me, however there are a few exceptions and the P18 is one of them. I'd love to see this driver used in a project, I haven't seen it used yet and it looks like such a good driver.

Sreten is right, there are a lot of choices for that broad description of what you are looking for. Peerless Exclusive 830883, Seas P18, ER18, CA18, Hi-Vi D6.8. Since you plan to crossover a little bit high, I would shy away from metal cone drivers, as the cone resonance is likely to be a problem without crossing over at a lower frequency.
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Old 8th April 2009, 07:15 PM   #7
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Default here is another choice

http://www.madisound.com/catalog/pro...roducts_id=845
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Old 8th April 2009, 09:52 PM   #8
GOWA is offline GOWA  Canada
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I built Zaph's L18 all aluminum and it sounds sweet. John did a nice job to let the L18 be the star of the show. Madisound has a design for the P18 / 27TDC, which I also built but I was not as happy with it. I think it was crossed at about 2.2k.
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Old 9th April 2009, 10:21 AM   #9
sreten is online now sreten  United Kingdom
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Hi,

FWIW : "A New Project: Poor Man's High-End Monitor" :
http://www.geocities.com/woove99/Spkrbldg/jays_blog.htm

Contains IMO two highly cost effective and measured drivers.
(see Zaphaudio.com measurements.)

http://www.madisound.com/catalog/pro...oducts_id=8302

http://www.madisound.com/catalog/pro...oducts_id=8352

I'm sure Jay_WJ will send you the crossover details on request.

Quick and dirty (check accuracy in Unibox) modelling indicates
it will go low in a fairly large (for a 6.5") floorstander vented.
(proper modelling indicates lower real world box volumes.)

/sreten.
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Old 9th April 2009, 01:50 PM   #10
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I'd still choose active crossover for L18.
7k passive notch filter is impedance dependent, which changes with excursion and voice coil temperature.
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