I drove my og 901s from a Phase Linear 700B, very popular combo back then.
901s, like most every speaker, sound exactly the way they're designed.
True, you don't necessarily need larger drivers when you have more of them.
But -
Dispersion is a function of wavelength vs driver diameter - 901 drivers beam rather than disperse above around 3 kHz. The wall reflection is designed to address that except wall reflections destroy phase integrity.
The smaller drivers would have wanted to over-travel their magnetic linear regime, so you cure that with a small enclosure and over-damping (high total Q) the system. That sets up the danger of cone resonances overpowering higher frequencies - the bane of full-range electrodynamic designs.
So, you cure that with equalization, and they did.
And then you address it all with raw horsepower, hence the Phase Linear and 350 watts/channel.
Later, a more efficient ported design happened - along with the total system Q change and the midbass bump just above the port frequency, that acted to cause a drop before air pressure made it act like a sealed cabinet again.
What works best for sound reinforcement in public is often the opposite of what best for audiophiles in a home and vice versa.
Then comes personal taste. And there's no accounting for taste!
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:rofl:
I tend to not recommend Bose because I also think they're overpriced.
That said -
I have a pair of their full cup noise cancelling headphones (agree completely with Mike, best for low frequencies nearer the engines - and I have the over the ear Sony cancelling job that does far better at higher frequencies when I'm sitting near the front lol).
I have a Bose 3-2-1 system in the bedroom, subwoofer and two small satellites, with a lot of processing to simulate surround sound - and that actually does a helluva job. I took the floor set on the model changeover and saved hundreds though. Love it for what it is and the job it does, hated it at the retail price.
Finally - I have a Bose ie-2 headset and that's the most comfortable thing I've ever worn. Fixed by equalization on my rooted phone (Viper4Android ftw). Paid $40 instead of a hundred because they were screwing up my phone sale and the manager was a people person.
I guess for someone who doesn't like their gear, I've got a good share of it.
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