Inconsistency in System

Fairly typical complaint, and as you suspect its probably power related, although the humidity and your mood are also great contributors. If there was something wrong with your system it would usually be constant.

Hi, I recently had a similar problem. It was a power problem in my case. The power cord that came with my amp had a bad ground...so I switched it with another aftermarket cord I already had. That's when I noticed the problem that you are describe in this post. I looked at my monster power center and noticed that the amount of current that was usually being drawn with all my equipment on had decreased and music sounded different from day to day. I bought a used stealth HAC power cord here on Agon and my system came back to life.... The moral of the story is...Try a different power cord on your amp if you can. A power cord that you are certain is designed for power amps...not front end components. It's either that or your tubes in the preamp are starting to go bad.

Hi, You might want to put a meter on the AC to see if the problem changes with a variation. You may also want to tighten up the ground wires on your electical box, this could make a big difference especally with aluminum wire. Goodluck.

I used to have a similar problem with my system. It sounded best late at night and worst during the day, especially in the afternoon. The problem for me was noise on my power lines. I added Richard Gray Power Conditioners to my system and the sound is now very clean throughout the day, and much more dynamic. If you go with a power conditioner, I would recommend trying them first to make sure you find one that works well with your system.

Thank you everyone for your responses...I will be trying some different things to see what cures the ailment. Since my preamp is only approximately 5 months old and I do not run all the time, I don't think it is the tubes though........