"iammr2 wrote:
That's not necessarily correct. There were no "B" designated speaker cabs in the first generation line. There were "S", "SH", "M", "MH", etc... "B" model cabs showed up after Hartzell sold Sunn. You just used whatever cab you though would sound good. "
the "L" and "BH" designations are in the '79 catalog page 9. i thought that that was a hartzell era catalog. the cabinets are badged as sunn (not FMIC.)
http://www.dangpow.com/~sunn/catalogs/ check the parent directory for the 1979 catalog and look at page 9.
it has been my experience that the 6 10 L red logo speakers don't make real great bass speakers. the original 10" speakers are too fragile for that.
i played bass through a 610L cabinet with modern long excursion drivers and it was killer for upper register tone and really positive transient reponse but didn't move enough air for low register response. no chest thump in that box!
a pair of 115BH cabinets with black widows driven by a red knob concert lead and concert slave made me shove the hartke aluminum cone 15 and 410 into the closet, lock the door, and throw away the key!