A Few Turntable Measurements using the RPM Android App

Dear @terry9 : MUSIC and MUSIC in a home and its reproduction quality levels belongs to Transient Response. That first MUSIC note and notes attack is what ,for me and my MUSIC life, I think is what defines the step by step MUSIC score we are listen. That transient response obviously develops harmonics.

In a room/system where nothing is perfect: where are developed everykind , not only distortions/colorations, of poor transient response according with each system link where something is poor too in some frequency ranges.

Your first hand experiences as me and the listening panel in that TT review along the reviewer tell us ( you and me ) exactly the importance of those transient response and what we " losted " through that dull reproduction were only bad distortions right at the " edge " and that now just dissapeared.

My last " dull " experience in my system was in the early last year when I decided to change the attenuators/volume in my phonolinepreamp. Years ago I bought those new attenuators that came with the same Swiss mechanism that the ones I used to, difference with the " new " ones is Only that the old ones where builded with true hole resistors and the " new " with SMD resistors.

I made the change and was truly dramatic and the first impresion was sad for say the least, yes Dull sound but after a few hours I took again that what I losted were those distortions that normally gives that " over bright " sound. Now those transients are marvelous and obviously puts me nearer to the recording because the brightness is more natural near the live MUSIC brightness.

Yes, we are accustom to that wrong brightness. My audio system is full on SS electronics with ( for me ) high resolution .

Over brightness lives in many of the audio system links of that system chain. Through the years our ears goes down in its sensitivity and that over brightness is " welcomed " and normally is not our fault till we have that " dull " experiences and then we learn about and take action in that audio room/system. In the other side for several audiophiles that true overbrightness they take as: clarity, transparency and the like when in true are only added distortions what gives that kind of " clarity " and that can happens at both frequency extremes not only in HF.

R.

@mijostyn  : This was what I posted a few months ago in other thread and was not the first time on that issue:

https://forum.audiogon.com/discussions/top-two-most-important-sound-qualities/post?postid=2560319#2560319

https://forum.audiogon.com/discussions/top-two-most-important-sound-qualities/post?postid=2560702#2560702

and this related in other " diferent " thread:

https://forum.audiogon.com/discussions/how-can-you-evaluate-a-system-with-highly-processed-music/post?postid=2561802#2561802

Today on those issues is my overall " take ".

R.

@rauliruegas 

I think your preaching to the choir. 

Perhaps a better way of putting it would be transient power. It is not just enough to be fast but a system must be powerfully fast. This is one of the characteristics of sound quality. Imaging exists as its own category with a different set of determinants. A system can have the right balance of frequency ( amplitude response) and be powerfully fast but still not image well. A system can image beautifully yet lack realistic transient power and not have the right balancer of frequencies. A great system will line up all these factors, have lifelike transient power, the right balance of frequencies and image correctly. Any variation from the ideal are what Raul characterises as distortions (of reality)

Is there any scientific data that indicates how a person with "normal" listening abilities perceives audio distortions? What are the lower limits or perception? Is there an emotional reaction to different frequencies?

The commonly accepted sating that "even order sounds "good" and odd order sounds bad" is ubiquitous. Is there scientific data to back that saying up?

If there are studies of this perception, I would really like to read references to that data.

I have difficulty accepting commonly asserted "facts" unless there is data that has been peer reviewed.

Pleas note that I am not bashing anyone. I am looking for explanations that are based on studies not commonly accepted sayings.

@mijostyn  : I don't know where you want to arrive. The power is just intrinsical in a live MUSIC event ( no one is preaching there and certainly not the Orchestra Director. ) and I thiink that any one but you already understood what I posted and the links I posted.

For your " 20 + " latest posts in the thread you are living inside that imagin that according with what you already posted in the threads is a main characteristic for any room/system

I don't know know if you attend to live events to enjoy the imagin. Not me. Anyway please tell me what can you appreciate in a single horn player at live SPL if you are seated nearfield say 2m.?. Maybe you know something that I just missed or we are talking of different " things ".

R.