Also don't confuse "reverse" on some pre-amps (was poular back in 50's/60's) as when it says "Stereo-Mono-Reverse) all you are doing is swapping what came out of left speaker for what now comes out of right".So if your bass is more prominent in left channel and drums more prominent in right it will be reversed that's all.Some confuse this with above info on phjase.I wish more digital players had this and compresson which is so easy to add and if your system is in absolute phase (after using polarty check ) all the way through an engineer went the other way it can make a huge difference.Compresson is something I'd like o see for making Car CD-R's or low level listening.Had an Adcom GCP 750 that had phase and it mae huge difference on some recordings.
Chazz
Chazz