http://www.gadgetizer.com/2005/10/31/eminent-tech-trw-17-worlds-most-powerful-subwoofer/ Gadget reviews and tech news. Get daily reviews of gadgets and the latest tech news at Gadgetizer.com Mon, 09 May 2011 16:07:13 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://www.gadgetizer.com/2005/10/31/eminent-tech-trw-17-worlds-most-powerful-subwoofer/comment-page-1/#comment-1813 kp Tue, 02 May 2006 03:21:02 +0000 http://www.gadgetizer.com/?p=335#comment-1813 can you put it in a car? can you put it in a car?

]]> http://www.gadgetizer.com/2005/10/31/eminent-tech-trw-17-worlds-most-powerful-subwoofer/comment-page-1/#comment-167 PLDR » Blog Archive » The world’s loudest subwoofer Thu, 03 Nov 2005 09:05:33 +0000 http://www.gadgetizer.com/?p=335#comment-167 [...] Today a number of stories (@/., @ SONICARE, and @ Gadgetizer) have described the TRW 17 from Eminent Tech which claims to be the worlds most powerful subwoofer with a flat frequency response down to 1Hz! Pretty cool! The concept behind the design for the TRW 17 is explained here. To understand the significance of the design, one needs to appreciate that as the frequency of a sound disturbance in air decreases, the intensity of the sound decreases proportional to the square of the frequency. The main principle behind the design is that one can compensate for the impedance mismatch at low frequencies between air and a woofer cone by replacing the cone with an aerodynamic blade that has some amount of angular momentum. To appreciate the difference, compare moving your hand side to side in the air while standing still, or while sticking it out the window of a car at 60MPH. The unit is intended to be installed in a small room (like an attic) and uses the entire room as a resonant cavity! [...] [...] Today a number of stories (@/., @ SONICARE, and @ Gadgetizer) have described the TRW 17 from Eminent Tech which claims to be the worlds most powerful subwoofer with a flat frequency response down to 1Hz! Pretty cool! The concept behind the design for the TRW 17 is explained here. To understand the significance of the design, one needs to appreciate that as the frequency of a sound disturbance in air decreases, the intensity of the sound decreases proportional to the square of the frequency. The main principle behind the design is that one can compensate for the impedance mismatch at low frequencies between air and a woofer cone by replacing the cone with an aerodynamic blade that has some amount of angular momentum. To appreciate the difference, compare moving your hand side to side in the air while standing still, or while sticking it out the window of a car at 60MPH. The unit is intended to be installed in a small room (like an attic) and uses the entire room as a resonant cavity! [...]

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