Klipsch THX RS-62 SurSnd- How are the horns wired

[mpmiller1980]

Im wondering about the Klipsch RS-62 mainly about the horn wiring in the speaker. They are set up like dipole's. however they are not db efficent as a set of horns run in parallel would normally be,. they are rated like 97db but if the horn were run in parallel they would be over 100db. Do they run the horns in these speaker in series to better match the db of the dipole configuration of the woofers run in parallel?? Or if someone has more input on any of the other Dipole they make like the RS-52. Im just wondering about the wiring on the horns. Well lets say you have a good horn thats around 105 db effeinct well then you add another one in parallel and now they are at 111db and your woofers are no where near that effecint even running two very good woofers even in parallel. I noticed they bumped up the 5 inch woofers to bigger 6 inch woofers on there new dipole set up?/ Anyways back to the question do they run the horns in parallel or series in there Dipole surround sound speakers like RS-62/52's

[Guest IVstringer]

I'm not familiar with the internals of the product, but because the horns are facing 90 deg. off-axis from each other, that could explain a lower sensitivity rating. Being offset in that way, you would like to balance the output on-axis of each horn to the central axis of the speaker. Ideally, if the sensitivity of one horn is 97 dB on its axis, you would want 97 dB from the center of that horn, around to the central speaker axis, and then all the way over to the on-axis position of the second horn.

[Guest BobG]

Klipsch surround speakers are not dipole. They are also not bipole. Klipsch surround speakers are designed to produce as close as possible to 180 degree dispersion with consistent amplitude through that covered angle. Dipole speakers and bipole speakers (to a lesser extent) have a very deep null at their side. That null is pointed at the listening position so that all the information that reaches the listener is reflected off front/back walls. That produces a very big, enveloping rear soundfield but as there is no sound pointed at the listening position, localization is very poor. Bipole and dipole worked well for Dolby Prologic but now that rear channels are full range, high resolution and stereo, the technology is no longer a good match.

Klipsch calls their design WDST which stands for Wide Dispersion Surround Technology. Recently, Klipsch has started to produce the design for professional cinema where it is well received.

The horns are designed to closely match the woofers in sensitivity and, where needed, they are "dialed back" in the crossover so as not to play too loud for the low frequency section which is not horn loaded.

[varay0816]

great post