Whats Your Favourite Passive OB Bass Driver - diyAudio
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Old 16th October 2010, 12:07 PM   #1
DQ828 is offline DQ828  Australia
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Default Whats Your Favourite Passive OB Bass Driver

I'd be very interested to hear what your favourite OB bass driver is for a passive setup. Wether used as singles or pairs or more. Also why you like them.

My favourites are Altec 416 8B, but thats because I'm very new at building speakers & it's the last one I used, oh and much bigger than the driver in my previous build.
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Old 16th October 2010, 12:12 PM   #2
Pano is offline Pano  United States
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The 416 may be my fav for a box, but not for OB.

Of what is currently on the market, this one - Goldwood GW-1858 - used 2 per side is quite good. Also quite large.
For a much more reasonable size, this Peerless - Peerless 830669 12" - is hard to beat. A really amazing driver.
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Old 16th October 2010, 12:14 PM   #3
sreten is online now sreten  United Kingdom
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Hi,

The Altec is probably a nice driver for a box but a dreadful choice for
a passive open baffle speaker due to its very low Qts of 0.23, and
TBH the Xmax is not that impressive either for the application.

Checkout MJK's articles on passive open baffle speakers :
Quarter Wavelength Loudspeaker Design

rgds, sreten.

The Eminence Alpha 15" is very popular.

Last edited by sreten; 16th October 2010 at 12:21 PM.
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Old 16th October 2010, 03:30 PM   #4
Helmuth is offline Helmuth  Netherlands
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Quote:
Originally Posted by sreten View Post
Hi,

The Altec is probably a nice driver for a box but a dreadful choice for
a passive open baffle speaker due to its very low Qts of 0.23, and
TBH the Xmax is not that impressive either for the application.

Checkout MJK's articles on passive open baffle speakers :
Quarter Wavelength Loudspeaker Design

rgds, sreten.

The Eminence Alpha 15" is very popular.
Do not only look at the Q also Fs,Vas. The altec is very very good here simulation 2phi.
Click the image to open in full size.
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Last edited by Helmuth; 16th October 2010 at 03:34 PM.
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Old 16th October 2010, 03:40 PM   #5
Helmuth is offline Helmuth  Netherlands
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eminence alpha 15
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Old 16th October 2010, 03:58 PM   #6
Helmuth is offline Helmuth  Netherlands
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I am afraid that the mid of the goldwood could be to poor qaulity.

The peerlees is nice qaulity.
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Last edited by Helmuth; 16th October 2010 at 04:00 PM.
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Old 16th October 2010, 03:59 PM   #7
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The SLS10 could be also a nice performer, dry bass and fast, not as low as the SLS12. Could be used as single or pair, easily down to 45Hz@-3dB.
Peerless 830668 10" Paper Cone SLS Subwoofer | Parts-Express.com
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Old 16th October 2010, 04:10 PM   #8
Helmuth is offline Helmuth  Netherlands
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Quote:
Originally Posted by jerome69 View Post
The SLS10 could be also a nice performer, dry bass and fast, not as low as the SLS12. Could be used as single or pair, easily down to 45Hz@-3dB.
Peerless 830668 10" Paper Cone SLS Subwoofer | Parts-Express.com
can do nice for a 10" limited spl around 100-105dB two. Is enough 10" is better for mid.
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Old 16th October 2010, 04:23 PM   #9
Helmuth is offline Helmuth  Netherlands
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limited xmax monacor sph250ke keflar cone good spl for hifi. xmax at 8W or two 16W = spl102dB for two at xmax.
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Last edited by Helmuth; 16th October 2010 at 04:26 PM.
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Old 16th October 2010, 04:45 PM   #10
Helmuth is offline Helmuth  Netherlands
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Low price dayton good xmax 6mm can compete with peerles 10" only dayton has steel basket.SD270.
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