Hi everyone—
I just acquired a set of Altec 846A Valencias and am experiencing a channel imbalance. Opening them up and swapping the back panels revealed that the problem is one of the N-800F crossovers—it's shelving down the tweeter response to where it's barely audible (though the L-pad appears to work). The crossover can is riveted shut so I can't get in. Bill at Great Plains Audio says they only deal with Altec drivers and don't repair or resell crossovers. And there doesn't seem to be another N-800F for sale right now in North Amerca.
Can anyone suggest what to do—I'd love to get these playing.
Thanks so much,
Alex