Watts and power


Can somebody break it down in layman's terms for me? Why is it that sometimes an amp that has a high watt rating (like, say, a lot of class D amps do) don't seem to always have the balls that much lower rated A or AB amps do? I have heard some people say, "It's not the watts, it's the power supply." Are they talking about big honkin' toroidal transformers? I know opinions vary on a speaker like, say, Magnepans - Maggies love power, right? A lot of people caution against using class D amps to drive them and then will turn around and say that a receiver like the Outlaw RR2160 (rated at 110 watts into 8 ohms) drives Maggies really well! I'm not really asking about differences between Class D, A, or AB so much as I am asking about how can you tell the POWER an amp has from the specs? 
128x128redstarwraith
An amp that doubles it’s 8 ohm output into 4 ohms should sound better than one that doesn’t.
And one that doubles from 4 to 2 will also sound better again especially on speakers that dive into low 3-2ohms

Cheers George
Georgehifi,


So let me get this right. You design with Cadmium Photocells but you don’t know they are ACTIVE semiconductor devices? That’s right, active semiconductor devices. Period. End of story. Not debatable even.


My gosh. You don’t even know how a CdS photocell works. It does not change its chemical properties when exposed to light. It is a doped semiconductor. Exposing it to light increases the availability of free electrons for conduction.


Teletronix limiting amplifiers, first released in late 1950’s, early 1960’s used CDS Photocells to control audio level. That was later built into other equipment. YOU absolutely did not introduce photocells to audio for level control.
When you keep sticking your foot in your mouth and showing lack of knowledge, even about the things you claim to be the expert on, are you surprised I would expect you lack knowledge in amplifiers , things of which you keep making erroneous statements on? 
You have no idea, all you know is how to stalk someone and put **** on something else they do for a living that’s not even related to this thread.
Go away and stop your stalking, you are a pest for a new not even 1 month old member.
Nice try ghi, but if anyone is stalking, you are stalking me. I posted 6 times in this thread before you did. You are free to post whatever you want, but if you post erroneous information that you can’t back up, people like me are quite warranted, perhaps even morally obligated to call it out.


You make many claims about amplifier performance that are not founded and would not be made by someone with a somewhat deep understanding of amplifier topologies and what drives their performance limitations.


That you don’t even understand the operation of the underlying technology of the product you sell further calls into question your technical abilities which you appear to use to justify the validity of your other statements, since you don’t justify them from a circuit design / architecture standpoint.