Have a look at:

PGA2310, PGA2320, PGA 2311, PGA4311

http://focus.ti.com/docs/prod/folder...t/pga2310.html
http://focus.ti.com/docs/prod/folder...t/pga2311.html
http://focus.ti.com/docs/prod/folder...t/pga2320.html
http://focus.ti.com/docs/prod/folder...t/pga4311.html

Very very hi-fi!

Ioannis