Its the same 1.6 that's been out for a number of years now. It has the quasi ribbon, the 3.6 and 20.1 are the only speakers in the magnepan line that use a true ribbon tweeter. It is true the ribbon sounds better up top then the quasi ribbon tweeter - however, it does not integrate as well with the rest of the speaker, its not as cohesive. The benefit of the 1.6 is a much simpler crossover network, because its a two way and not a three way like the ribbon tweeter equipped models. The ribbon equipped models also produce lower bass due to the larger physical panel size, however, the bass does not "slam" like a conventional speaker. So if there was any way to use a dynamic(cone type) bass driver, planer midrange and ribbon tweeter and have it be chohesive, you would probably have the best speaker ever made - assuming it doesn't look like a Gilmore.
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