Class A vs AB vs D amplifiers

[Descartes]

Why would you want anything else!

The Sound of Tubes – Why is it So Good? - HomeTheaterHifi.com

Vacuum tubes have been around for ages and the technology has been at some point considered obsolete. Technically, there were of course...

hometheaterhifi.com

 

[rank]

There was a tube AVR at the very beginning, I don't remember the brand.

 

[Vacceo]

Why would you want anything else!

The Sound of Tubes – Why is it So Good? - HomeTheaterHifi.com

Vacuum tubes have been around for ages and the technology has been at some point considered obsolete. Technically, there were of course...

hometheaterhifi.com

Why? Because It isn't.

 

[mhardy6647]

There was a tube AVR at the very beginning, I don't remember the brand.

The very beginning of... what?
I mean, harmon/kardon made the first widely-marketed & purpose-built integrated power/pre-amplifier and tuner. Monaural, of course (or "1.0" in AVR-speak). Most preamps in those days had a "TV" input -- so AVRs they were!

(random internet photos)

h/k also claim to have marketed the first stereo receiver (the MA-230) for all of your "2.0 receiver" needs.

https://in.harmankardon.com/blog-the-history-of-sound.html

(also a rando internet image)

... or are you talkin' quadraphonic?

 

[rank]

A tubey Audio Video Receiver. Beginning of Home Cinema.

 

[Theta]

Hi all
Iv always been under the impression that class A AB amplifiers sounded better than class D , however less powerful at same cost etc..
Now days with modules like the purifi , some say the class D exceeds the latter classes... in what respect are we talking, and how does this relate to
sound , detail , low background noise , channel separation, and imaging...
Ive heard the terminology Grainy withe older class d amps.. is this now changed?
thankss!

Try class G and H