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In Reply to: RE: Push-Pull Double 15 Subwoofer Pic posted by Les Hudson on August 06, 2010 at 13:18:10
Berenek's law...
Have you ever heard a real bass horn?
eso
They were a carnival of American decay on parade, and they had no idea of the atrocity they had inflicted upon themselves–Henry Chinaski
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Bass horn do have there place. And its in my listening rooms. They sure are hard to design proper. I feel this is why some give up. Very easy to get them wrong. But when done right near the best in bass. I know large costly much easier to knock out designs like above. I see to many overly small bass horn attempts no wonder they where not enjoyable.
Basshorns have a their compromises starting with the fact that the long path from the driver to the mouth means that the bass signal is usually delayed relative to the midbass in most systems. Unless if you are willing to live with the compromise, then this usually rules out bass horns. I cannot live with this compromise as the bass sounds confused.
The second drawback of basshorns is that, unless if the basshorns is VERY large/long, then they cannot be subwoofers because the frequency response drops off a cliff at a fairly high frequency (too high for many audiophiles) - they are just woofers.
The third drawback of basshorns is that while they are better than sealed subs and many ported subs, because they are simply high quality sealed subs with a megaphone in front of them, they suffer from some of the same drawbacks as sealed subs (compression and distortion caused by the "box" or compression chamber), although they do so at much higher levels than sealed subs.
Basshorns have a very important place and that is for very large venues where you need big and efficient output. But in audiophile listening rooms, there are better options which don't force you to live with these compromises.
If you have a basshorn and like it good for you. But others have found better options.
Retsel
nt
"Basshorns have a very important place and that is for very large venues where you need big and efficient output. But in audiophile listening rooms, there are better options which don't force you to live with these compromises."
For an alternate point of view have a look about here:
http://www.avsforum.com/avs-vb/forumdisplay.php?f=155
Both my THT and Tom's DTS-10 have garnered a very loyal following amongst users who are not the least bit undemanding; some might even call them fanatical.
That's funny. I have and have built many bass horns. I will never build a bass horn again and I know others that agree. Les Hudson
"Have you ever heard a real bass horn?"
Yes, (quite) a few in my time.
The PPSL sounds cleaner, goes deeper, is more compact, and much easier to build.
I concure
What would you suggest for the driver linked to below? I've got four of them lying around, and I'm really interested in trying out ppsl.
Frode
This driver might be a good candidate for a Karlson cabinet but not a subwoofer. Les Hudson
I was thinking more of a midbass solution, not a subwoofer. Cross at maybe 40-50Hz on the lower end and 300-500Hz on the upper. I guess 4 of these in Karlson boxes could work for this purpose.Frode
Edits: 08/07/10
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