Earlier this year I bought a pair of Totem Dreamcatcher bookshelf speakers. I've been powering them with a Kenwood amp that's about 15 years old. I adore these speakers, but I do notice that my current setup tends to really emphasize any sibilance that may be present in vocals, to the point where it gets annoyingly harsh.
Currently, I'm looking into upgrading to a integrated 2-channel (or 2.1) amp. I've heard good things about the Marantz 6004, and have also taken a look into offerings by NAD and Yamaha (just online, not in person). Since the Dreamcatchers tend to be a bit bright on their own, and seemingly unnaturally so with my old, not great amp, I was wondering if you could steer me in the right direction to an amp that's warm, or at least not overly bright. My spending limit is $500-600.
By the way, Dreamcatchers are 4 ohm speakers, with a recommended power rating of 20-100 watts. Thanks for your help.