My beloved PSAudio HCA2 is giving up the ghost and repairing it is going to probably cost more than its worth after all these years. I have been lucky enough to not have even considered replacing the PSA as i really enjoy the ultra fast transients, tube like mids, and iron fisted grip the amp has on my B&W CDN7NT's. My budget is up to $2k, what would you suggest? The speakers will dip to under 2 ohms and like a lot of current, although before the amp started letting go, my goal this year was to upgrade the speakers to something more suited to the huge room they're in. However, now the amp is chewing up that budget so let's focus on that.

I'm considering a vintage McIntosh 250wpc (don't have model #) or a Threshold 400a, so used gear is fine. While I love the tube sound, i honestly can't stomache the inefficiencies and heat of a valve amp. I also obviously like the sound characteristics of good class D amps and have read good things about the NuPrime ST10 but haven't heard it.

Thank you in advance for your suggestions!