Influence of the delay amplifiers for listening characteristics

[Federmann]

Originally Posted by Upupa Epops

Again no answer...you have really good " input filter " for straightforward questions....

I can only repeat what I wrote.

Originally Posted by Federmann

I view, that the maximum acceptable delay is 5.7 ° for the entire frequency band to 200kHz. Sinus 5.7 ° is exactly 1 / 10 output signal, but you certainly read on my web.

I'm interested in the views and experience of others.

[BV]

view, that the maximum acceptable delay is 5.7 °

Why? Why not 5 or 6 degrees???Because you believe it?

[Federmann]

Originally Posted by BV

Why? Why not 5 or 6 degrees???Because you believe it?

I also wrote: „is exactly 1 / 10 output signal, but you certainly read on my web.“

There can read that 1/10 signal, the power output is 1/100 of 1%. We can talk about the distortion of 1%.

[Upupa Epops]

Really ? And if not ? Transistor sound ? Your statement have certainly good background, obtained by many listening tests...can you describe them ? Our community goes on the wrong way fifty years and we watch new ideas...

[Federmann]

I still see that there is no experience. Nobody associated delays and sound?

The topic is not about presenting their own equipment, the theme is about knowledge, as assessed by the amplifier delay.

[PMA]

Only interchannel delay (phase shift) is audible.

[Federmann]

Originally Posted by PMA

Only interchannel delay (phase shift) is audible.

This is not a topology, there is not a hearing delay. This is the delayed signal is compared with the input signal.

Delays 5.7°, the output signal passes through zero, but the input signal has a 10% maximum value.

Increase Vdif corresponds in the distortion. Shape Vdif corresponding to the deviation from the original signal.

[Federmann]

Originally Posted by PMA

Again, you speak about phase shift (and you do not mention frequency and slew rate).

Answer my question - I have shown 24Vp-p 1MHz undistorted measured, not simulated, output. You speak about uA741 that distorts at 8kHz full scale sine due to slew rate of 0.5V/us. Why do you use such example??

I replied here: Influence of the delay amplifiers for listening characteristics

If, you answered, delayed 10 °, it would Vdif = arcsinus 10 °
Vdif for 10 ° = 17.4%, as well as the 741.

[PMA]

Linear change (amplitude and phase) is normally not called distortion. As a 'distortion' we mean nonlinear distortion, i.e. creation of new frequency components not present in an original input signal. You speak about shape of amplitude and phase plot.

Your example with uA741 has nothing in common with phase shift. You are showing strong nonlinear distortion, resulting from slew rate limit. This nonlinear distortion creates new harmonics. Thus, your question on 5.7 degrees makes not much sense. You can ask for wide bandwidth, but you must same time ask for high slew rate.

[PMA]

Originally Posted by Federmann

If, you answered, delayed 10 °, it would Vdif = arcsinus 10 °
Vdif for 10 ° = 17.4%, as well as the 741.

10 ° at 475kHz, in case of my preamp. uA741 would show nothing but sawtooth line of very small amplitude at 475kHz. Not because of phase shift, but because of limite slew rate (0.5 V/us). You shoul learn basics of operational amplifiers.