Realistic sound = tubes and analogue

[theaudiohobby]

That is not entirely correct. Impedence typically drops with lower frequencies as do some speakers in the treble. If a speaker dips to 2 ohms that requires double the amplifier power on the 4 ohm tap. But that only depends on the speaker's minimum impedence. A stable loudspeaker that does not go below 4ohms on a 4 ohm tap of the amplifier places no such demand on the amplifier. A 20hz note at 4ohms places no greater demand on an amplifier than a 1khz note at 4ohms. Amplifiers don't care about frequency the care about impedence

You are way off the mark. For example, have a look at this amplifier(a Rogue Tempest II), for a power output 10W, it puts out at least 2X more distortion at 50Hz than it does at 500Hz, and distortion worsens as the power output increases, therefore during a dynamic peak with significant bass content this amplifier would produce considerably higher distortion in comparison to a peak with little bass content.

[RGA]

You are way off the mark. For example, have a look at this amplifier(a Rogue Tempest II), for a power output 10W, it puts out at least 2X more distortion at 50Hz than it does at 500Hz, and distortion worsens as the power output increases, therefore during a dynamic peak with significant bass content this amplifier would produce considerably higher distortion in comparison to a peak with little bass content.

Does every tube amplifier on the planet do this? Is this what you are saying that every tube amp on the planet at 50hz exhibits 2X more distortion? Twice the distortion - umm under 1% at 50hz and under 1% under 500hz. At 20hz the amp is under 1.5% - have you lost the plot. I know you love arguing theory but let's try to put things into some rational perspective. You will NEVER hear any of this.

Though I find it interesting that once again the review where you took that from, Soundstage, the reviewer bought the amplifier - even after he saw the measurements of the SS amps on his own website. LOL. Too funny.

[theaudiohobby]

Does every tube amplifier on the planet do this?

Isn't that a question you should ask yourself, you made the original assertion that "amplifiers do not care about frequency.

Is this what you are saying that every tube amp on the planet at 50hz exhibits 2X more distortion? Twice the distortion - umm under 1% at 50hz and under 1% under 500hz. At 20hz the amp is under 1.5% - have you lost the plot. I know you love arguing theory but let's try to put things into some rational perspective. You will NEVER hear any of this.

You do not understand the graph nor seem to get the point, do you? The graph above is for an amplifier rated at 90Wpch, its distortion at 1W and 10W will be minimal however it still varies with frequency, at a dynamic peak it will output more power and distortion. Does this graph, Song Audio SA-300 (8Wpch), put things into perspective for you

Though I find it interesting that once again the review where you took that from, Soundstage, the reviewer bought the amplifier - even after he saw the measurements of the SS amps on his own website. LOL. Too funny.

What I find interestering about you is your seeming inability to tell the forest for the trees as well as your propensity for making blanket statements that are totally off the mark.

[RGA]

Isn't that a question you should ask yourself, you made the original assertion that "amplifiers do not care about frequency.
You do not understand the graph nor seem to get the point, do you? The graph above is for an amplifier rated at 90Wpch, its distortion at 1W and 10W will be minimal however it still varies with frequency, at a dynamic peak it will output more power and distortion. Does this graph, Song Audio SA-300 (8Wpch), put things into perspective for you

What I find interestering about you is your seeming inability to tell the forest for the trees as well as your propensity for making blanket statements that are totally off the mark.

I understand the graph thatnk you - I see that the distortion rises in the lower frequencies very likely due to the tranformers they're using. SETS and tubes have higher distortion - I think everyone gets that. The forrest is the resulting sound quality - the trees is looking at compartmentalized aspects of measured results and drawing conclusions - and you know you're the latter - every post every thread.

[theaudiohobby]

I understand the graph thatnk you - I see that the distortion rises in the lower frequencies very likely due to the tranformers they're using. SETS and tubes have higher distortion - I think everyone gets that. The forrest is the resulting sound quality - the trees is looking at compartmentalized aspects of measured results and drawing conclusions - and you know you're the latter - every post every thread.

I thought you just done saying tube amplifiers don't care about frequency but now just maybe not , I for one am indifferent to your preferences, what irks me is the steady stream of blatantly wrong statements you espouse in support those preferences.

[RGA]

I thought you just done saying tube amplifier don't care about frequency but now just maybe not, I for one am indifferent to your preferences, what irks me is the steady stream of blatantly wrong statements you espouse in support those preferences.

The amplifiers do distort more at the frequency extremes - or distort less within the frequency extrmes depending how you look at it. I do find it strange that it would - a frequency without a load should not matter to an amplifier. It simply takes the signal read from the preamp stage and makes those signal louder and it should treat them all the same. Putting a load on the amp is when it should distort - bass drivers present a harder load in general and will distort more than mid/treble drivers. What have I missed?

[theaudiohobby]

The amplifiers do distort more at the frequency extremes - or distort less within the frequency extrmes depending how you look at it. I do find it strange that it would - a frequency without a load should not matter to an amplifier. It simply takes the signal read from the preamp stage and makes those signal louder and it should treat them all the same. Putting a load on the amp is when it should distort - bass drivers present a harder load in general and will distort more than mid/treble drivers.

Most of what you've just written is a red herring

What have I missed?

That your prior post(s) on the issue was plain wrong.