The Cronus is a nice sounding amp. I had the same amp with the kt-120 tubes and the only thing I did was to replace the preamp tubes, change to a 4 ohm load, and got a nice power cord, which makes a big difference in any system above the Best Buy 1 box units. I sold it because it wouldn’t control the bass drivers, too loose sounding.
since you are using 2 subs, this might not be a big deal. Also, since you have B&W speakers, you want a warm sounding amp.
The room and speaker positioning are probably the biggest areas you should do before thinking about better equipment. Once you get the room dialed in, then any tweak or improvement you do you will realize the full potential of your purchase.
BTW: cables can make a big difference especially if your equipment is of good quality
since you are using 2 subs, this might not be a big deal. Also, since you have B&W speakers, you want a warm sounding amp.
The room and speaker positioning are probably the biggest areas you should do before thinking about better equipment. Once you get the room dialed in, then any tweak or improvement you do you will realize the full potential of your purchase.
BTW: cables can make a big difference especially if your equipment is of good quality