Don't you mean Acoustic Couplers?
I'm very certain that that's it.
Peace,
Rick
--
{ I'd rather be, in some, dark hollow | Richard Martinez aka Electric Knight }
{ Where the sun don't ever shine | rmartine@harper.UUCP }
{ than to be in some big city | harper!rmartine@uunet.UU.NET }
{ In a small room with a girl on my mind| electric@meltdown.chi.il.us }