On Dec 10, 2011, at 10:56 PM, Ka9p at aol.com wrote: > > But I agree the 180 audio is poor, as well as that annoying, popping > AGC, > maybe the worst I've had on a tube receiver - has anyone seen mods I wonder if the HQ-170 suffers in similar ways. Roy Roy Morgan k1lky at earthlink.net K1LKY Since 1958 - Keep 'em Glowing!