I use an ancient (1980s) subharmonic synthesizer to drive the Bass Shakers in my home theater.

HXpro was actually the only recording processor that didn't need a decoder. With Dolby B you could manage with no decoding (although you'll miss out on the noise reduction benefits), but Dolby C, Dolby S and DBX all needed an encoder and decoder.DBX... a great noise reduction process.. unfortunately not found on some of the most choice of equipment. If not mistaken, this was the NR that needed a encoder/decoder on both ends.. or is that HXPro![]()