Could you make a recording of a human voice anyway you want and play it back on any system you want and make it sound natural? you’re in charge of all decisions and the voice does not go to the bottom octave. Can you make that voice sound natural from a recording?
'make it sound natural' implies that I have control over the playback, which I don't. So how natural it will sound will depend on how accurate the system is. If its accurate the voice will sound natural. BTW that can be a bit uncanny; the experience is much like being at home alone and then realizing someone has invaded your home and is singing along with the stereo- then you snap your head around and there's no-one there...
If you went to Hampstead Heath open air concerts and couldn't get a seat near the stage but heard the wonderful sound from a few hundred yards away, would you say it sounded unnatural?
I've never been to Hampstead so can't say. I've heard plenty of indoor concerts though well away from the stage and they seemed to sound just fine.
Bass drum does not need deep bass. This is quite an NL thing to think the frequency of real instrument needs to be reproduced exactly to that point in a stereo system. A stereo system is about extrapolation. You are never going to get the exact size dimensions, frequency, tone, and coherence of a real orchestra outside real.
Also, if frequency was the only thing, have you heard an amateur, not so good orchestra play in the same venue as a good one? They both have the same frequency response, one will make you walk out in minutes.
Here's the problem: phase shift (group delay) is interpreted by the ear as a tonality if it covers a spectrum of frequencies. Unless the designer has taken care to control the group delay, if zero feedback the phase shift of a rolloff in the bass can cause a sense of loss of impact. Even if the speaker can't play the fundamental tone the effect of poor group delay can be heard (although the ear is terrible at sensing phase at only one frequency) up to ten times the cut off frequency. So if the electronics only go to 20Hz you'll hear artifacts as high as 200Hz.
When a smaller driver has lower frequencies that are out of band on it, a fair amount of excursion can result since quite often the driver isn't loaded. You see this in open baffle setups quite a lot. When the driver isn't loaded, Doppler Effect distortion occurs, causing the presentation to be congested.
I enjoy playing my KLH model 21 radio which I restored. It sits in the kitchen , looks nice and plays almost daily. But I hear material on it that I know has significant bass and that keeps me from being completely drawn in. OTOH my stereo can play all that information so its a lot easier to wind up sitting there playing music for extended periods. This is all about
involvement.
If you know the bass is there and its not getting played, hard to call that natural by any stretch no matter how well the rest of it plays. If you don't know what frequencies are in the recording below 40Hz you might be perfectly happy unless you're wondering why what you are hearing is so congested. Of course you may not realize that's happening unless you were there for the actual musical event.
The example of the two orchestras above is a red herring and is irrelevant.
This i agree with. While 65hz speaker will clearly show issues, below 40 or so is not a must, even if the bass drum goes down slightly
Huh. So there's a cutoff frequency...? Are you having it both ways?