Basic question degrading circuits preamp.

Tequila mike
Tequila mike Posts: 1
edited November 2009 in Forum Testing Area
I am getting ready to put together a starter system with used components.
I was wondering if a preamp tuner was used to run speakers for an extended time (years) if this would cause any problems with itdegrading the electronics. It makes since it would.
I know it depends on what size speakers how they were used and for how long and other stuff????
I have a line on a Sunfire MKII for $550 but am worried about what i will be getting.
I hope to run a Theater Grand amp with it.
Looking at one for $650 i hope.
Thks
M