That's definitely a drawback. I hate seeing wires everywhere. I recently had new floors put in and the swarm isn't currently hooked up. I'm waiting for new speakers before I put it back in. I want to get a taste of how the speakers intact with the room first.
I found these clips on Amazon that pin the wires to the baseboards - looks pretty tidy.
Are all of your Swarm subs behind your gear? I think I see one in each of the corners behind the speakers. I like the idea of the Swarm system... I just don't know If I'd feel comfortable having them spread throughout my listening space, with cables strewn around the room.
I think you might find that your system sounds more powerful and expansive when you add one.
When I added the 10Y to my system it was, subjectively, as if I had gone from 2 watt amp to a 20 watt amp. The preamp that it replaced was an Audio Note M6, which itself sounded very robust (especially with upgraded tubes) but not like the 10Y.
I've never used the Mayer 45 with a passive pre so I can't say whether an active pre is a must and I would certainly never say that the 10Y is a must. There are lots of great preamps out there.
love your set up and interested in your experience using low wattage Thomas Mayer. I only own a power amp and no preamp. I'm using a Slagle passive. Is the 10y pre amp a absolute must? in your experience? I know most people run an active pre but curious if you have an opinion.