Krell fpb 600 svs ultra tower

If it has bass and treble controls, I would be surprised. Generally not an audiophile thing. Your DAC should have different filters that can help. 

I’m betting we will next hear tweeter and a couple midranges are,making a (pencil hits notebook paper) sound, from frying voicecoils from too much power, the crossovers can only take so much.

600rms is a lot of power! Be careful, watch the,volume, I can’t get even halfway on volume, and it’s either too loud or it starts to mildly distort, so naturally. Keep an eye on the=Volume.
you did it correctly with those wicked bada$$ amps! 100 or 200 WPC, juuuuussst, don’t have the sheer brute force I needed. It’s the absolutely,effortless airy , perfectly controlled sound. No strain, whatsoever.

enjoy those amps, I would have them checked by Krell , even if the guy u bought from said so, just for piece of mind, those amps were on my radar years ago,

enjoy, get a good solid preamp for those amps, there is a ton of good used stuff out there. Happy listening.  
no worries, my speakers are rated at 250W peak, and use 650W monos,as well!

I just swapped out my B and K pro10-mc (newer version) for the Sanders Preamp. 

much more detail, AND, I WAS GETTING STATIC, CLICKING CONSTANTLY from tweeters.,….unplugged the hdmi , and DEAD, QUIET, NOT EVEN HISS WHEN ear is right in front of the tweeter. I’m happy. This is my basement system.

When I picked up the Classe ct-ssp preamp also got some xlr cables. The sound is phenomenal now and has the punch I am very happy now. Even the better half  said wow the stereo sounds great now also

Also sorry for saying it trips the Krell 20 amp breaker. I meant to say the 20 amp household breaker in the panel dedicated broker Then to run 10 gauge with 30 amp like Kell recommends 

I had a Krell FPB600 for ten years. Best sound with balanced cable to the preamp. I liked it best with a tube preamp (Aesthetix Io with volume). There is some protection circuit/jumper to protect against preamp misbehavior, I removed them, got better sound, and never had a problem. The one problem I did have, was that it sounded best at a volume level that was too loud for me (more pure class A at higher volume). But it is a great amp, and in some ways I miss it. Far better than two Krell KAV line amps I had, before the 600.