I've been having this problem with my playback system for a while now and need some input.
I mix using my DAW, older Cambridge Audio stereo amp and Tannoy Reveal (unpowered, the purplish) monitors and an integrated sub-woofer. I notice that that I hear the hi-hat much more on the right side, than on the left. Even with a true mono source! There is more sizzle on the right than on the left. So, I swapped the speakers, left to right, thinking maybe one of the tweeters is going bad. Same problem. More sizzle on the right than on the left. I switched amps and tried every combination of speakers and amps and still the problem persists. The right side sizzles more than the left.
So, I started to think that there may be a reflection problem, so I tried putting a blanket over the reflective surfaces near the speakers, but even that doesn't fix the problem.
So, my question is... have any of you experienced anything like this with your playback system? My next course of action is going to be moving my DAW around in the room. Even though it took me months to arrive at the current position, because of bass anomalies in other locations in the room. I've just never experienced anything like this before and need some input as to what else to do? I've had bass issues, so I know how room placement can affect the sound, I just haven't experienced that problem with high frequencies.
Maybe before I move the whole DAW around in the room I should move the speaker system into another room and see if it still persists?
Maybe my right ear is better than my left???