Depends on what your needs are. I would eliminate #3 as an option as the 402 is a wonderfull amp. If you want the tube sound pick the 2200 over the 2300. If you need theater pass thru unity gain then get the 2300. The 46 is solid state and will provide years of great service and has no appologies to offer in it's sound quality. The tube front end will be a more musical presentation for 2 channel. These of course are all one man's opinion and I am sure many will offer a different point of view.I own a 402 and had a 352 and can attest a vast improvemnent. I own a MX135 and used it for years as a stand along pre-pro.
The 135 is basically a 46 in the 2 channel end of the unit.
The 135 is basically a 46 in the 2 channel end of the unit.