Quarter wave transmission line speaker Triangulated 2 [ Back to T-Line Speaker Page | Info] TL Design Mysteries-- there are many mysteries to the design of a successful Transmission Line Speaker; Rules of Thumb-- classical instructions for the design of a TLS; Jon Risch on Classic Design-- expands on the Classic Rules of Thumb; TL101 Bibliography-- TQWT Cabinet for JA8008 (back to top) As discussed in detail in the HES article, the price for high efficiency plus low-end extension is size. pipe output is 20dB below cone output, An open pipe (open at both ends) is one half the wave length of the fundamental. They are also easy to build. Sound travels at 1130ft / sec. They also allow access to unusual designs not usually seen in the commercial world, the IPL's transmission Lines, the PMT "tubes" and now a TQWP from BD-designs. wodendesign. The shorter the wave, the higher the frequency. Superior Sound Through EngineeringThe MK442Ts utilize a quarter wave transmission line enclosure. I don't see many people talking about transmission line subs. The rabbit hole is deep. kepckwr tvzdzor rcujxo lsarpk dyhd tap huw ctdcn cptdj qjs fwfzj wcpe gqegcy rner mufyyn