What improvements did you hear in going from entry level to high end Audio?

terry9 said:

"That's exactly what cheap electronic components are and what they sound like."

I suspect that's what the guy with the $500,000 speakers (used) says too. And unless you have $500,000 speakers he'd say your stuff was "cheap" and sounded like it. Thus the 'infinite regression' nature of such comments.

Sorry if I offended you, N. But that’s the physics.

There is no component which is pure resistance, pure capacitance, pure inductance, pure gain. And there are other effects, such as dielectric absorption, phase shift, temperature stability, etc. Each component and each combination of components has its own mixture of these, and its own sonic signature. And may be priced accordingly.

To quote Horowitz and Hill, in their famous electronics tome, from the table on characteristics of capacitors,
"Electrolytic: Accuracy - Terrible; Temp Stability - Ghastly; Leakage - Awful".

Again, sorry to offend you, N. But that’s the physics.

The whole wall came alive, versus the sound coming from just the speakers or the lower end half of the wall.

More body and detail.louder without any distortion.Natural timbre. Big improvement in bass. Uniform across frequency range. 

A better audio system allows me to hear with greater detail and resolution, the faint sound of money draining from my bank account!