They don't appear to go down as low as most good subs by JL or Velodyne. They still could be good though.
Benefits of a cardioid subwoofer?
By "cardioid" I mean cardioid radiation characteristics. Specifically, I am thinking of replacing my JL Audio F110's with a pair of ME Geithain Basis 11K subwoofers. More information can be found here:
http://me-geithain.de/highend/index.php?option=com_content&view=article&id=67&Itemid=107&lang=en
The unique thing about this subwoofers is the cardioid radiation pattern, which supposedly reduces the interaction with the room from the back wave. To obtain a cardioid pattern, the subwoofer has to combine a monopole with a dipole. The interaction between the two rear waves cancels out the rear radiation thus producing a cardioid pattern.
I have never heard nor seen anything like this. Does anyone have any opinions?
http://me-geithain.de/highend/index.php?option=com_content&view=article&id=67&Itemid=107&lang=en
The unique thing about this subwoofers is the cardioid radiation pattern, which supposedly reduces the interaction with the room from the back wave. To obtain a cardioid pattern, the subwoofer has to combine a monopole with a dipole. The interaction between the two rear waves cancels out the rear radiation thus producing a cardioid pattern.
I have never heard nor seen anything like this. Does anyone have any opinions?
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The Legacy Whispers use Cardioid woofers. At the 2011 Axpona, the Whisper, seen here with designer Bill Dudleston who is showing off one of the speaker's dual-woofer cardioid bass sectionshttp://www.stereophile.com/category/axpona-2011 |
Honestly, I'm not sure that the idea is even workable. Low frequencies (long wavelengths) wrap around the baffle and become omnidirectional regardless of the launch pattern. Below 100hz, I'd think front baffle mounted, cardioid (bi/di-polar), and omni drivers all behave very similarly. Just an observation. Marty |
- 13 posts total