Hello!
I recently ran into this site and am quite enjoying the information - thanks.
I'm currently playing around with the new NAD M2 "direct digital" amplifier. It is hooked up to Martin Logan Prodigy speakers and a variety of digital sources. It sounds excellent so far, but the sound stage is shifted to the left. This is true with all the electronics I've had, but the others have all had some form of balance control (2 to 3 db seems to be what's needed to fix the problem). I'll be switching the speakers around to see if one of them is quieter etc., but the room itself is perfectly balanced (in that each side is exactly the same). Whatever the cause (hopefully not my hearing) I need a way to shift the soundstage back to the middle.
One way I guess would be some sort of attenuation device between the amp and the speaker, but it seems like that would likely degrade the sound (or change the sound differently for different frequencies).
What I'm hoping is that there is some kind of digital processor that I could use (either before the digital signal goes to the amp or in its digital loop) that could adjust the volume of one or the other channels up or down without otherwise changing the digital stream. Suggestions?