Smallest tube system for bed room

A portable CD player with a line output will not take up much space. That said, most of them stink sonically. I am using the Radio Shack CD3400, which is one of few portables that have a decent line out, but I am feeding its linestage into the analog inputs of an unmodified Art DI/O, converting to digital and then looping back into the DI/O's digital input converting to analog at 24/96. This sounds better than using the Radio Shack's digital output into the DI/O, especially since I am using the tube warmth feature of the DI/O. I would warn that I do not think the CD3400's can be serviced any more, so if you find one, make sure it is in good shape. Only problem I have ever had with mine is the jacks are a little worn.

I bought an Antique Sound Labs MG-SI15DT off 'gon for $450 (retail $700). It's a sweet integrated tube 15WPC. Drives my Edge mini-monitors nicely. There's a 30WPC ASL on 'gon right now asking $400. Check out Divergent's web site for more details.

I'd suggest VTL tiny triode 25's amplifiers

If you don't mind buying used gear, you should check out the LS3/5a spekers (Rogers, Spendor, etc.) and Jadis Orchestra tube integrated amp. I have both of these in my bedroom system and they sound wonderfully sweet, particularly if you like vocal, solo instrument and chamber music. You can get a pair of used LS3/5a for around $600 and a used Jadis orchestra for around $1,200. You can then spend around $500 for a good used cd player. Good luck!!!

I can personally recommend the following components, which would fit your bill(look for them used, and you will really be in heaven at half the price I list here):
1) Jolida JD - 202 integrated amplifier($750). 40 wonderful EL34 tube watts. Upgrade the tubes and power cords for another $150 when you have the need, time, or money.
2) Cambridge D500SE CD player($480). Rich, full, not run of the mill digital sound.
3) Music Hall's new tuner($250). If you needed a tuner.
4) Triangle Titus($495). Fast, detailed, sound. More refined than anyone would expect.
5) HomeGrown Audio Super Silver Interconnects($70). Best interconnect value in our hobby?
6) Coincident CST 0.5 Speaker cable($200 for 6 ft). Another option to cables like AQ Indigo or Kimber 4TC, only more full bodied, warm, and fleshed out.

So there it is, falling right in the lower side of you range. Again, please search out these components used, they are prevalent.

GOOD LUCK!