DAC/Headphone amp/speaker amp recommendation

[hornetstinger]

Looking for

USB DAC - to work from a PC
Headphone amplifier
Integrated amplifier (volume knob)
Speaker outputs
Possibly subwoofer pre out
Bluetooth receiver

Any recommendations? Anything £100 or less?

 

[hornetstinger]

Speaker level output not pre out FYI.

Guess £100 is not enough for such a thing?