Steven Boardman wrote:

If there is an LFE sub in a playback system, that also has full range 
satellites,. Why not use it? Music playback on these systems can still use the 
full range, but also use the sub for dynamic effect. Particularly when it is 
dialled low.  It allows the program material to be louder, as one is using all 
the available headroom. It also doesn't register so much on Dolby meters when 
cinema broadcast is required. Which also means the volume can be pushed even 
more.
As long as it's used sparing for the very lows, then it won't mess managed 
systems either…

Best regards


Steve

Or maybe we should use good "full-range" speakers down to about 40 - 50 hz, and still use a sub for the lowest octave or so? (Because if there is musical content 50 hz, the reproduction system should adopt to the music; the opposite way doesn't convince me so much... )

Best,

Stefan

On 19 Apr 2015, at 22:17, Stefan Schreiber wrote:

Jörn Nettingsmeier wrote:

On 04/19/2015 07:29 PM, Stefan Schreiber wrote:

Otherwise we don't need any sub, and Jörn and Marc could save some
money...    :-)
the saving money part happens when you stop pushing every single loudspeaker 
down to 20 hz (because extended lf capability equals size and weight and money, 
and as we all know, there are many many loudspeakers in higher-order 
ambisonics).
it's just not very economical.
I am not pushing anything. I just gave some "empirical feedback" that the 
lowest piano key is 27.5 hz and for example the lowest double bass note 32.7 hz (C 
extension) or even lower. If you want to reproduce the fundamentals and not just 
overtones, you probably need a subwoofer.

and i'd like to stress that subwoofer != lfe.
Did I pretend anything different?! There is obviously no LFE channel in 
Ambisonics, but in the cited cinema formats you had. (10.2, 22.2)

And I was also referring to some former 5.1 discussion. (LFE needed for music 
mixes, or not.)

In this sense, we have a mixed discussion. (You still could argue that LFE is 
not needed in a 5.1 mix; in practice, there could be some issues without LFE. 
Depends maybe on the intelligence of your equipment...)

i don't need an lfe for music, even less so with all the +/- 10dB guesswork :-D
but i do like my 10 octaves (or the 9.5 which i can still hear).
You will experience still your 10 listening octaves if you turn up your hf 
amplification a LOT and fry your speakers...     :-D

Best,

Stefan

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