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Old 21st July 2015
Lives for gear

Originally Posted by got_degree View Post
Where do they state "-3dB"?
I can only find "Usable Frequency Response" and that can mean anything. -10dB is also usable.
PMC's also rely on a transmission line, that can boost the low end output significantly, but at the cost of group delay.

So even though I doubt the PMC can deliver clean usable output at 33Hz, it is at least possible.

The Audiofilia concept (mechanical oscillation to generate a “hybrid waveguide” of pneumatic nature) is pure pseudoscientific BS.
Looks like PMC AML2 is -10dB at 33Hz as you suspected: