There is physical evidence of driver's T&S parameters changing after some use. As for electrical components, most noticeably capacitors and resistors require some burn in time before they sound right.
Drivers usually don't wear out(sans foam rot), but the electronics inside them can after 15-20 year, especially electrolytic capacitors.
Drivers usually don't wear out(sans foam rot), but the electronics inside them can after 15-20 year, especially electrolytic capacitors.