The 22" x 30" x 42" TH-215 is designed to cover the 29-125Hz range (+/-3dB) with a sensitivity of 99dB SPL at 39Hz (measured as 20V input 1/2 space at10M distance). The TH-215 takes up to 1,400 continuous watts and 2,800 programme watts and will produce a generous 133dB SPL at 36Hzand 138dB SPL in the range of 102-113Hz. The TH-215 weighs in at a modest 190 lbs.
"People are astounded by the deep, loud, true sound of our TH line subwoofers," says designer Tom Danley. "It's uncommon for a subwoofer to reproduce with such fidelity, and it's unprecedented for a subwoofer that's so small. Our patent-pending tapped horn technology makes the difference. Conventional horns have to be one-half the length of the lowest wavelength that they are intended to reproduce. Since low-frequency wavelengths are quite large, conventional subwoofers have to be large too. Our unique tapped horn technology gets around this by cleverly placing taps in the horn where radiation from the rear side of the driver enters. The resulting phase cancellations and additions work out such that our subwoofers can accurately reproduce low frequencies with a much shorter horn."
(Jim Evans)
