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Comment by mixmastamyk | Hacker News Reader

So what can you play on it? Any recordings or hardware available that go low enough?

Looks like they have a demo DVD. Was hoping for more.

The film "War of the Worlds(2005)" has effects going down to 20 Hz; to play it you will need an ATMOS AV receiver that has an LFE port to feed the signal to an amp that has LFE input. Not all amps which have an LFE input can cleanly output 20 Hz, let alone anything lower, so you would need to check the specs.

I wouldn't be surprised to discover that the original "Iron Man" movie reproduced effects at that level, but I know the "War of the Worlds" film does.

Why atmos? Wouldn't any receiver with a subwoofer out do? Many subwoofers have a crossover and you can could also wire your audio out through the subwoofer and then to your speakers if you really want.

There’s a difference between sub out and LFE. Sub out usually can’t accurately do frequencies that low. I believe LFE is Dolby tech too.

The rotary subwoofer would have paired nicely with theatrical sensurround https://en.m.wikipedia.org/wiki/Sensurround whos heyday was in the 1970s and employed large drivers and enclosures the size of a few refridgerators, large enough to require the removal of seats to make room for them, at a loss of revenue...

ELO's album "Time" had an opening ("Prologue") that had a pipe organ kick in around 00:26s that would occasionally cause the needle to hop on my turntable. Probably pushing the RIAA equalization limits for vinyl.

Digital recreation of a 64ft organ stop?

A 64ft organ stop goes down to 8Hz, but your DAC might not. Attempting to play extremely low bass too loud is an easy way to damage speakers/headphones, and most people don't have rotary woofers, so it's common for playback equipment to filter everything below 20Hz.

Audacity can generate sine waves of arbitrary frequency, but take care not to set the volume too high and break things if you want to experiment.

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