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RE: Harsh vocals in Magnepan 3.7i

I don't know what your hypothetical is about, sorry, must have missed something.

I do think these are electromechanical devices governed by well understood physics.

Usually, at least with box speakers, larger cabinets mean the ability to make more bass with greater efficiency. With planars it means the dipole resonance (where you get bigger output with lower signal input, though with delayed energy storage) is bigger and at a lower frequency with larger panel size, hypothetically meaning more efficiency as well.

Of course Magnepan heavily tunes this with the buttons and proprietary tensioning--it is a virtual trapezoid like the Apogees were physical trapezoids, non-uniform from top to bottom.

I think when people get bigger panel speakers, they want to turn up the SPL more and that may contribute to the desire for more watts. It's fun to have a big sound field everywhere. It doesn't sound strained with a whole lot of shouting coming from a little place. Another thought: given the same total SPL acoustic energy produced, a larger physical size must mean that the power emitted per unit area must be smaller. Maybe though the same power is being produced vs a small speaker, it (at least in direct sound) is being transmitted more to areas of the room where people's ears are not. Like 4 feet over my head. It would contribute to reverberant sound field (after attenuation in high frequencies which often determine human perceptual loudness) but less to direct? Maybe a secondary effect.


I also wonder about A/B crossover distortion being more perceivable and if higher power AB amplifiers move that point to a different operating regime, I seem to notice people talk about this issue with AB amps but not tube or class D amps.

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