What does "fast" mean with regards to an amp?

[BDWoody]

Two priceless gems for me:

‘The sound stops as quickly as it starts’.

‘Drain internal noise from components’.

 

[Raindog123]

Surely the speed of an amp depends on the height one drops it from.

...only until it reaches terminal velocity.

 

[Raindog123]

Technically, “fast” amplifier has short rise time of transient response and high output slew rate.

I second that. All fun aside, a square wave (or impulse) response/handling by an amplifier (to a load) is very measurable. And it’s settling time can be expressed in terms of speed, no? I am sure there are corresponding subjective listening effects.

 

[BDWoody]

...only until it reaches terminal velocity.

Audiophile physics is different. It will be as fast as I believe it to be, based on...well, that's the fuzzy part, but I know it's true.

 

[mansr]

...only until it reaches terminal velocity.

Which terminal has the highest velocity, bananas, spades, or bare wire?

 

[BDWoody]

Which terminal has the highest velocity, bananas, spades, or bare wire?

42

 

[murraycamp]

"What does "fast" mean with regards to an amp?"

It means it will quickly drain your bank account (for no audible benefit).

 

[pma]

Am I wrong when I have a feeling that more stupid the thread topic, the more it is popular?

 

[BDWoody]

Am I wrong when I have a feeling that more stupid the thread topic, the more it is popular?

 

[mhardy6647]

Surely the speed of an amp depends on the height one drops it from.

Well -- on (i.e., near) Earth, it should reach terminal velocity if dropped from a high enough altitude.

Am I wrong when I have a feeling that more stupid the thread topic, the more it is popular?

I supect you are not wrong. Does that make you feel better, or worse?

 

[Katji]

All these words /adjectives confuse me, but sometimes I analyse it instead of just getting irritated.
So it means less distortion, as in blurring of discrete sounds - iow, it sounds clear instead of blurry, and that gets interpreted as "fast"...but I think they're just hearing the speakers.

 

[watchnerd]

Surely the speed of an amp depends on the height one drops it from.

Up to a point.

It will eventually hit terminal velocity.

Aerodynamic amps with less air friction will be faster.

Ergo:

Fast amps are those with aerodynamic shapes.

/endthread

 

[BDWoody]

Up to a point.

It will eventually hit terminal velocity.

Aerodynamic amps with less air friction will be faster.

Ergo:

Fast amps are those with aerodynamic shapes.

/endthread

You Fizziks guys are so smart...

 

[Robin L]

I'm gonna take a shot, this is what a slow amplifier ought to look like:

 

[Robin L]

Up to a point.

It will eventually hit terminal velocity.

Aerodynamic amps with less air friction will be faster.

Ergo:

Fast amps are those with aerodynamic shapes.

/endthread

So I guessing one of these ought to slide through the air more readily than a Marantz 8b?
Might wanna stick some fins on this, get directional with the slipstream:

 

[BDWoody]

So I guessing one of these ought to slide through the air more readily than a Marantz 8b?
Might wanna stick some fins on this, get directional with the slipstream:


View attachment 111277

I bet it Devia(le)tes from the expected fight path.

 

[Katji]

Apparently the one that Amir tested did.

 

[Raindog123]

You Fizziks guys are so smart...

More like aerospace engineers (also known as “rocket scientists” ). But yes with fizziks background, speaking for myself.

 

[BDWoody]

Apparently the one that Amir tested did.

I remember it well... It was mine.

 

[daftcombo]

Amplifier speed is determined by the music it plays.