These are a pair of self-contained Vifa supertweeters. They offer extended high frequency range and subjectively a feeling of air, shimmer, etc. They are simply wired in parallel with the main speakers, ie, run speaker wire from your main speaker terminals to the Vifa terminals. Adjust output level and high pass/crossover point. Voila!
I tried these with Omega single driver speakers and they mated well. I am pursuing the SuperTweeter path by building a pair from 1980's Yamaha Beryllium drivers. Fun project. So I'm letting these go. They offer a very affordable means to make a substantial improvement in your system's sound.
Includes user guide and test/calibration CD.
$290 with shipping a flat $15 anywhere in the US. Paypal fees included with asking price.
Specifications:Operate from 15khz to 40khz.
Nominal impedance 6 ohms
Maximum sensitivity 92 db
Selectable crossover points: 15khz, 17.5khz or 20khz
Crossover class is first order - 6db/octave
Banana terminals - also take spades and bare wire
Volume level output selectable: 0db, -3db or -6db
........Peter
