Question, I have been following your conversation for a couple of pages now, and I’m curious. From what you are saying or implying, a single B&W zeppelin will sound better that two HomePods? I went to the B&W website and was reading up on that speaker.
And does a single unit give true stereo sound or would a person need to buy two to get the full effect?
I do love the fact that it has a single 6” speaker/subwoofer built in which MUST sound better than any 4” speaker calling itself a subwoofer.
The answer to all this is: Nobody knows.
We know today: A HomePod has six tweeters, six microphones, one subwoofer that isn't very big but has quite large displacement, and one rather powerful processor that controls everything. Usually people have two separate speakers boxes, with two actual speakers, and no intelligence whatsoever. So the HomePod ought to be better than you would think if you just looked at the speakers, but nobody knows how much better.
People reviewing it so far haven't done any meaningful reviews. On the other hand, some people are waiting for music magazines putting a HomePod into a lab and measuring things, and I can only tell you that this will not give any meaningful results. Like they will try to measure the frequency response. At the same time, the HomePod will measure the layout of their lab, and produce the best result it can in that lab room. It will twist its frequency response so that the ears of the listener get the best possible result, and if you look at the measurements, they will look godawful. Because you have a speaker that doesn't try to produce the best sound coming out of the speaker, but the best sound entering the listener's ears.
We also have been told that the sound from a single HomePod produces something that tells the listener's ears where the instruments in a recording are positioned. But it's different from stereo. It sounds different.
What we need is some serious reviewers with good hearing and half a dozen different speakers to listen at the HomePod carefully, and tell us how it compares in quality with various conventional speakers. And that serious review will be difficult because it behaves different from conventional speakers. Two stereo speakers have _one_ point where their sound is optimal. HomePod has a whole area where the sound is optimal. So you have to take that into consideration. I'd expect a review to say "speaker X, which cost $XXX, was better than HomePod in its sweet spot, but less good when you moved two meters away, so overall their quality is about equal".
One HomePod doesn't give "true stereo" sound. It gives a _different_ sound. Which might be as good, almost as good, nowhere near as good, or better than "true stereo". We don't know that yet. But we know it is different. Two HomePods should be able to deliver something that is better than "true stereo", but again, we don't know that until we hear them.