MikeH10

Thanks for the quick reply.

Just bought a pair of Heresy 1's on ebay. On the inspection sheet glued to the back beside "Type", it has written "HWO". Can any one fill me in on the meaning of this legend? By the way the serial numbers are 128w391 and 128w386. Can anyone decipher these numbers. The speakers must have been built after 1980 because there is a copyright designation of 1980 on the inspection sheet. Would appreciate any other info anyone might have about these speakers. BTW, for the most part I am bowled over by these speakers. The tonal characteristics of the midrange is far more accurate than I had expected on the basis of some of the commentary that I have read about these speakers. Thanks in advance