Originally Posted by
Chas
Over the years I have used 806A on first, the 811B, then thinking the horn was the issue - I moved to the 511B to no avail. These horns get non respect! With a GPA bolted up they are stunning. And I’m used to 4345’s loaded with TAD TD2002 beryllium CD’s.
I was very fortunate to get a pair of the GPA’s prior to the massive increase. Mind you, if my Valencia’s were used as my everyday system, I wouldn’t hesitate to spend the money even at today’s prices!
Not having ever heard a brand new 806 right out of the box (circa ~1965!), maybe the aluminum diaphragms “work harden” over the years? There’s no way the HF response of these things in today’s world come anywhere close to meeting Altec’s published spec of 20Khz! One is lucky to reach 12Khz...
I have also bolted up LE175’s by adding a third hole to the 511B mounting flange. The results, to my ears were quite nice, the sound was big, warm and inviting. To me, not really as accurate as I like for my everyday system.