The key to getting good sound out of your computer is to come out of it digitally to a separate DAC via a USB connector. Sound cards in all computers I know of are either integrated (read crappy) or plunked on the PCI bus (read noisy). Either way, the result is less than pristine. However, there are several companies making good USB DACs that produce outstanding results. In that you have just bought a MXR130, you have the analog amplification side of your equation solved. What you need now is something to handle the modern digital devices that are available to you, starting with your computer.
You can spend a lot of money on this aspect of your trip to audio nirvana, but I believe in baby steps. A good start could be a Grant Fidelity Tube DAC 11
. This little baby is an affordable digital front end to an all analog system, and even incorporates a tube buffer.
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer