What do you mean you “heard” the turntable


I don’t get it. Maybe I just don’t have the biological tool set, but I read all the time how someone heard this turntable or that turntable and they comment on how much better or worse it sounded than some other TT, presumably their own or one they are very familiar with. 

Thing is, they are most likely hearing this set up on a completely different system in a completely different environment. So how can they claim it was the TT that made the difference?  The way “synergy“ is espoused around here how can anybody be confident at all considering how interdependent system interactions are. 

Can someone illuminate me?
last_lemming
You already know the answer.  It is impossible.  Just changing the rack and or feet makes a difference.  All the rest of the variables just complicates the matter further.

Enjoy the ride
Tom
+1 Millercarbon, will said and on point. +1 Has2be ditto. Lew, if Larry isn’t open minded to new points of view that are experianced based, and on facts, he’s not going to maximize enjoyment of this hobby and the great knowledge this community has to offer. Unfortunate really.

According to Popper there is no theory independent observation.

So ''I have seen with my own eye'' or ''I have heard with my own

ears'' is no argument at all. What we hear or see our brain need

to interpret in the context of some premisses.

Take ''our'' scientist Lew as example.  He own 5 TT's but neither

of them is belt driven. Does he have some prejudice against belt

driven TT? The most of his TT's are DD kind. So presumably he

has some premises about drive systems in the sense of , say,

quality. Can he hear any difference between his TT's by listening

to them ''naked'' next to each other? Well this may be the case

with his Lenco because  its driving system may produce some

''rumble'' which is difficult to supress. That is why he made 100kg.

plinth for the precious (grin). But hearing whatever from his DD

 TT's is not probable. This would imply that something is wrong

with the one with, say, sound on its own.

So this thread is at least not clear formulated. One can only

''hear'' an TT in combo with an record , tonearm and cart. The

last mentioned 3 are those which (re)produce sound.

At what point do turntable noise and speed issues become inaudible to human hearing? Some of the latest Technics specs are staggering.

What more is left for the turntable to do? 

"For wow and flutter most turntables were (and still are) around .1 to .3%. The SP-10 and SL-1200 were less than .025%."

"Remember the wow and flutter rating of less than .025%? Well now it’s less than .015%, which is considered the measurement limit. Read that again. Rumble is now down to -92 dB"

https://www.osirisstudio.com/home/2018/1/12/technics-sp-10

I suspect some of the ’sound’ of the turntable goes beyond the usual measurable ’specs’ of rumble, wow & flutter and has to do with mass, materials, isolation, the sonic character of the interface between the LP and the platter (which could be a combination of materials, hardness or softness of that material), etc.
If you think about the process- transducer, like a microphone, amplified by phono preamp, again, by line stage, and again, by amplifiers, you are hearing the combination of all of it-- the character of the cartridge, the arm and the table-- magnified to a considerable degree.
Even if you eliminate some variables- same cartridge (assuming no unit to unit differences), same arm and same set up, mass and materials have a sonic character.
I have often wondered to what extent different vinyl formulations and LP ’weights’ contribute to the process-usually its just a matter of how ’quiet’ the surfaces are, but are there differences in, say, the ’resonance’ characteristics of ’heavy’ vinyl v. Dynaflex era records? (Leaving aside VTA/SRA to account for 'thickness' of the record?)
Think about the various experiments people make with different platter mats, weights, clamps and the like. I think it all matters.
Not that I have any scientific methodology to suss all this out- but if you are working with a good turntable, there are many ’tweaks’ that may enhance the sound of one set up and not sound as good on another.