I would have to disagree with most of the above posts. I use a Monster unit for surge protection, and it has no detrimental effect on the sound of my system. Very recently I tried a PS Audio Quintet, and was extremely disappointed. There was a very slight improvement with digital components, but it was VERY detrimental to LP playback - greatly shrunken soundstage, very compressed dynamics, and it removed other things as well - I could not hear nearly as much of the ambient sound of the original recording space, nor were instrumental timbres as accurate, it seemed to remove some of the harmonic overtones.
All that said, power conditioners are supposedly much more effective for digital video than digital audio, so you might give a cheap one a try for that purpose. I would definitely not recommend one for two-channel listening, especially analog.
All that said, power conditioners are supposedly much more effective for digital video than digital audio, so you might give a cheap one a try for that purpose. I would definitely not recommend one for two-channel listening, especially analog.