Please don’t take any of it personally. I have neither the space nor (with 105dB horns) the need—let alone the funds—for a pair of 901s; but I applaud anyone who can afford and integrate them into a system. I have no doubt they are an excellent, kick-ass solution for many. (Friends of mine think my 275 is outrageous.)
Well, since you asked. Edit: oops. I answered a question you didn't ask. But, since I typed it all out, and since it has relevance to equipment selection, I will leave it. I won't actually get to see my new stuff until January sometime, but I will certainly report back about that (and, if there is interest, developments in on the ongoing saga, touched upon below, of the tension between me and my wife's decorator). But fair warning to all: nothing below describes my post delivery experience with the 901s. Proceed at your peril.
In my youth, a girlfriend's father had a really great sounding stereo system. Mine was very basic, semi-homemade. I vowed to myself that someday I would have a good system. Similarly, another friend's father had a Lamborghini Muira, and I vowed to myself that someday, I would have a Ferrari. For whatever reason, I completely lost interest in sports cars, but my interest in good stereos has never died.
Over the years, I have had "decent" surround sound TV systems, that I also enjoyed for music, but never something that shocked me with sonic clarity. I have been too busy working and raising kids (and doing some other fun stuff) to really give any thought to music systems. Fast forward to the covid thing, during which I realized I could not only work from home, I could work from anywhere. So, I bought a cabin in northern Wisconsin a few years ago, and have set about decorating and furnishing it. (The indoors were 99% my wife, with my role being almost exclusively budgetary control. One thing I did was get a player piano, identical to one I have at my LA home, in traditional high gloss black.
The living room of the cabin is about 20' by 40' with a TV and stone fireplace at one end. At the other end is a mostly glass wall with a great view of the lake. In the middle is that player piano. My wife and her decorator agreed that we should plan the view end as a great place to sit and relax with a glass of wine, while looking at the lake and perhaps listening to the piano. That is when I got inspired to consider a stereo system.
I asked for advice on another site on my two greatest concerns: 1) were my ears good enough to warrant a good stereo, and 2) where is the sweet spot in terms of budget. From my other research, I was focused on a MC 352 amp, vinyl and La Scala speakers. It looked like that would cost about $30K and I wondered whether spending that much was money well spent (or might I get 95% of the benefit for 50% of the price. The advice was to go listen to stuff, which isn't easy to do, even in LA, because there aren't that many show rooms. But, that experience convinced me that tripling my budget was money well spent. My favorite listening experience was B&W 801s (but 802s were not far behind) powered by McIntosh 901's. When I heard that 901s were $19K, I swallowed hard, because that was about triple the Mac tube amp I had been considering. Then I realized that even though the amps were "dual" amps, I needed to buy two. I figured that I would save some $$$ by going with the 802s (instead of 801s), but when my wife saw the 801s, and greatly preferred their visual appearance over the La Scala's, I recognized that the price difference was easily justified by making my wife happy. The other shocker was that even though I had given up on vinyl, preferring a streamer instead, I really needed to buy a pre-amp. And, the McIntosh C12000, with its separate sections for tube and ss, was perfect. So, I put my order in for that system (901s, C12000, 801D4s (not signature series -- I have to draw the line somewhere), with a HiFi Rose 150B.
I let my wife know the good news and she had forgotten really liking the 801s. They may have looked in juxtaposition to the La Scalas, but not in isolation. And, she hadn't realized how big they were. I pointed out that they were also gloss black (like the piano) and that her decorator was sure to give it a thumbs up (if she doesn't we are shopping for a new decorator). But my wife's parting comment was "where are you going to put all of that equipment". I explained that there wouldn't be any wires running across the floor -- everything would be below the floor (that helped) but that the amps must be very close to the speakers. I wasn't prepared for her next questions "how big is the amp?" I showed here that they measure 30" x 17", and explained that they will be on the floor or maybe on stands 6" off the floor. She wasn't happy, but apparently she didn't realize that there were two amps. That didn't go over well, but I did have the presence of mind to point out that the symmetry was actually a bonus, from an interior design point of view. At this point, that seems OK, but she wants the rest of the equipment hidden in an existing cabinet at the other end of the room, as she doesn't want the view windows to be even partially blocked by a bunch of stereo equipment. She has a point there, but I hope to find a low-profile stand that can hold the 3 other pieces of equipment low enough to not interrupt any part of the view, even when we are seated. And I gave the thumbs up to the recliners she wants (they look great, but they are so wide that one cannot comfortably use both arm rests at once, and they aren't long enough for a guy of my 6' height, as my legs dangle off one end, and my head gets no support at the other. But, a small price to pay for a happy wife.
Anyway, that is my story -- thanks for asking.