I use a vintage Sherwood 7100 receiver in my bedroom. It has a very musical tube sound and really good headphone amp. Its great for listening to CDs through my Grado RS-1s. Found the Sherwood receiver at a local thrift store, mint condition ... 20 bucks. Look down on my all you want. *lol*
Here's a Sherwood 7100-A that looks identical to the 7100. The difference is the 7100 is more tube-like in sound and the 7100-A is more solid state sounding.
http://www.ebay.com/itm/Sherwood-S-7100-A-Vintage-Receiver-Tested-Works-Great-/141825982522?hash=item21057cc03a:g:nHMAAOSwjVVVotCC