Charles Hansen of Ayre saved my love for audio


If you recognize the user-ID, you probably associate it with a litany of posts about trying to get rid of an unpleasant dryness, a sort of "reedy" sound in my system, that I've been logging-in to write about, over and over again, for years.

Over that time we've gone from room treatment issues, to power conditioning, to after-market cables, to RF treatments, to treating my IC terminals, and, well, back again, with no lasting success. Each time we've tried something, it's seemed to work for a few minutes (or hours), and then right back to the same old problem. Even the installation of a dedicated AC line made no difference. And the worst part was, I knew there was something actually *wrong* -- and I wasn't just listening in a finicky room, for example -- because what I was hearing was far more noticeable and jarring than any of the room/equipment changes I'd experienced before, and I'd listened in the past under some pretty un-ideal circumstances. Whatever was happening, I just wasn't getting it across in my posts in a way that equipped everyone who was trying to help with the right information to make the right suggestion.

Well, Charles Hansen of Ayre fixed it. And the best part is that he wasn't even trying.

In the past day or two, someone logged in to another high-end audio forum, asking what he could do to "warm up" an Ayre system -- which caught my attention because I'm not in the habit of thinking of Ayre stuff as excessively lean. Mr. Hansen made one quick suggestion and, when I applied the same suggestion to my rig, INSTANT SOLUTION.

Know what it was? Disconnect the TV and the DVD player from AC power when listening to music. Just like that, no more trouble, voila.

I had actually gotten pretty close to this fix by accident, since I had a power conditioner with a toggled power switch, connected to the undedicated AC outlet, managing all of my sources, while the amp and preamp were connected by themselves to the dedicated line, but because *all* of the sources were connected to the power conditioner, I was still dumping the RF crap from the switching power supplies of the TV and the DVD into the signal path whenever the CD player was on.

Now the amp and preamp are connected to the dedicated line, the CD player is connected to the undedicated line, and the DVD player and the TV are connected to the power conditioner, and *then* to the undedicated line. And to think, I only spent about two grand in RF shielding and new power cords and interconnects and speaker wires, that I wouldn't have had to spend if I could write about my trouble in such a way that other people knew what was wrong! :-)

So may I humbly and respectfully suggest that this experience be added to the "permanent record" of tweaker suggestions? So that the next time someone comes in and says, "I've got all of this reedy unpleasantness in my music and I don't think it's the speakers," we might all try suggesting this tweak as an antecedent to any money being parted with? It made all the difference in my system, and saved me from dropping any more ridiculous money on my rig.

Cheers, everyone. Sorry for the long post.

Dave O'Gorman
Gainesville, Florida
dog_or_man
Other things you can try unplugging are:

Microwave, washing machine, dryer, refrigerator, basically anything on your circuits with a switching power supply. Doesn't matter if its on the same circuit your audio gear is plugged into or not. If you went so far as to unplug the TV and DVD, then it wouldn't take much more effort to see if unplugging other appliances makes a difference too. Of course if you are married or live with someone unplugging these things could pose some problems.

I ended up using the Alan Maher Designs Power Enhancers to address noise on all my circuits. Now no more unplugging stuff.
I tried the enacomm filter and it didn't seem to have any effect -- you're satisfied that the Maher Designs PE is truly efficacious?
I share your enthusiasm about mitigating the effects of RFI generated by switching power supplies. Not long ago I discovered that use of laptops with plug in supplies were clearly detrimental to the pristine, extended, and shimmering quality of good treble in my system. I now routinely go around and request battery-only mode for serious listening.

In fact, I wonder why the industry doesn't offer a cheap one device solution for blocking this type of noise at the outlet where the computer or other device is plugged in. I would buy one for each laptop.
In fact, I wonder why the industry doesn't offer a cheap one device solution for blocking this type of noise at the outlet where the computer or other device is plugged in. I would buy one for each laptop.

Actually, what are called ferrite toroids are widely used for just this kind of purpose, although I don't recall seeing them being specifically marketed by anyone for audio applications.

Fair-Rite is a major manufacturer of these things, although they sell primarily through industrial distributors and there may be significant minimum buy requirements. They have a very wide range of physical configurations and electrical parameters. I think what would be of interest to us are what they call "Snap-Its." These simply snap around a power cord (or perhaps an interconnect as well), and their magnetic properties create in effect a series inductance within the cable. That attenuates noise and garbage at rf frequencies, while not affecting power line or audio frequencies.

http://www.fair-rite.com/cgibin/catalog.pgm?THEAPPL=Suppression+Components&THEWHERE=Cable+Component&THEPART=Round+Cable+Snap-Its#select:freq1

Of course, if the path by which the switching noise is introduced into the system is directly through the air into a component, rather than through wires, then these are unlikely to help.

I should add, also, that I have no experience with these myself.

Regards,
-- Al
I should add to my previous post that I'm less certain that ferrites would be effective on interconnects than I am with respect to power cords. That is because the inductive impedance they would in effect create in the signal path would probably be small in relation to the load impedance of the destination device. I'm also uncertain how shielding would impact their effectiveness. But I think they could very well be an excellent solution for these kinds of problems with respect to power cords.

Regards,
-- Al