Dave,
I agree with Frankg's suggestion/comments above, however I also believe that because the Hydra made such an improvement in your system it indicates that perhaps your AC power delivery system needs or would benefit from some upgrades. This would assist in improving the entire sound of your system as the Hydra did. You have to hear this for yourself to believe it, just as the Hydra workout in your system.
Do you have at least two dedicated AC circuits?
Are you using quality AC outlets that are perhaps cryo'd such as the Porter Port or others available on Audiogon?
I agree with Frankg's suggestion/comments above, however I also believe that because the Hydra made such an improvement in your system it indicates that perhaps your AC power delivery system needs or would benefit from some upgrades. This would assist in improving the entire sound of your system as the Hydra did. You have to hear this for yourself to believe it, just as the Hydra workout in your system.
Do you have at least two dedicated AC circuits?
Are you using quality AC outlets that are perhaps cryo'd such as the Porter Port or others available on Audiogon?