You hit the nail on the head...the sound may change and you may not like it...note the sound changes does not make it better IMO.
Buy a new unit if you don't like the sound of your current unit. At least you can take the unit home and listen to it before you buy.
Your room is the #1 issue that needs care that will impact the over all sound of your system, more then speaker wire or interconnects.
I am still amazed that moving two ASC panels about 4" on each side wall behind the speakers could make the whole system shut down and dead sounding.
Work on your room before you judge your system or any piece of gear. The Marantz SA-7S1 is about dead natural what of the best sounding units ever made to date.
If you can afford it, you should be very happy with it.
Buy a new unit if you don't like the sound of your current unit. At least you can take the unit home and listen to it before you buy.
Your room is the #1 issue that needs care that will impact the over all sound of your system, more then speaker wire or interconnects.
I am still amazed that moving two ASC panels about 4" on each side wall behind the speakers could make the whole system shut down and dead sounding.
Work on your room before you judge your system or any piece of gear. The Marantz SA-7S1 is about dead natural what of the best sounding units ever made to date.
If you can afford it, you should be very happy with it.