Phono Pre multiple mc inputs+volume control

As you may see from the system link below, I am using full Asr electronics. I like them very much.

Lately I am trying to buy a third tonearm for my turntable. Asr Phono accepts only two inputs. For the third tonearm, I may buy another phono pre, I may use sut with a MM phono pre, or I may switch cables, or I may buy a rca switcher etc.

But, I am thinking another tempting option;

Phono pre which has a multiple inputs(mc preferable i am not using mm cartridges), volume control and a power amp. Which seems very nice becoming smaller, lots of boxes(batterys, power supply I am dealing right now)will vanish, which would be nice in my situation. I have to deal with only two boxes(maybe three).

I am searching this kind of phono pre amp but there are very few I guess. I found Manley Steelhead, Musical Surrounding Super Nova II. I do not want to make a sacrifice from my sonic level, so Super NovaII is not an option(yes I tried, ASR is very much better). I do not have a chance to try Manley, and I am not sure Manley is a strong rival to Asr.

I really like to hear your ideas and recommendations. I am quite sure there are other options in the market.

Also one of my friend told me to buy an high quality MM phono stage(with a volume control)+rca swicther+ sut for cartridges. I also like to hear your ideas about it.

In the end I do not want a sonic sacrifice, maybe better but not less :) Only using less electronic is tempting, I may use a much smaller rack between speakers that way.