I wouldn't change anything until fully broken in. My W5's took a good 3 months, including several sessions running them full out with a 300W/ch amp! My Walsh 2s (100 drivers) were acquired used, and were fully broken in. I use them for reference. The most noticeable difference was in the bass. The Walsh 2s, though in a smaller room, were actually more satisfying in the bass department at first. The rest of the sound tended to smooth out over time I would say as well. Their overall timbre remind me of my Maggie 1.3c's now, which is a very good thing, but have a hell of a lot more satisfying bass. The Ohms were not this smooth at first, as I recall.
Why do you think you might need to upgrade the CD? What kind of amp do you use? The Ohms like amps with a high damping factor to control the drivers better. Look up "damping factor" on Wikipedia for more info on damping factor and how it relates to speakers.
John at Ohm recommended NAD electronics. I use a Carver m400t with very good results. I've tried my Tandberg receiver's amp with these and liked the Carver much better. I also think the Walsh drivers are better suited to solid state electronics in general due to their dynamic nature than to tubes, though I've never heard the Ohms driven with a really top notch tube amp.
Why do you think you might need to upgrade the CD? What kind of amp do you use? The Ohms like amps with a high damping factor to control the drivers better. Look up "damping factor" on Wikipedia for more info on damping factor and how it relates to speakers.
John at Ohm recommended NAD electronics. I use a Carver m400t with very good results. I've tried my Tandberg receiver's amp with these and liked the Carver much better. I also think the Walsh drivers are better suited to solid state electronics in general due to their dynamic nature than to tubes, though I've never heard the Ohms driven with a really top notch tube amp.