There never was a Mk2 Frugel-Horn. Mk1 level 0, 1, 2A, 2B, 3colin.hepburn wrote: Mark 2 Frugal horn
Scott will have you on that. This same went on at diyAudio. FH Mk3 is a tapped horn using a trick that Scott pulled from an Olson horn patent (and a variant also used in the Klipschorn.The new mark 3 does't really qualify as a true horn
In actual fact, because of the trick the FH Mk3 is a horn to lower frequencies than the Mk 1 (which at the lowest frequency should be considered a "TL")
dave