Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker

@georgehifi  Got a feeling there’s a couple of latent shills helping out too

Likely indeed. The marketing guy did step in at one point. We really gave it a good shot.

Check out this thread claiming there is no RMS power.

https://forum.audiogon.com/discussions/rms-power#1665330

 Read the banner at the top of the Wicki page and check out the references given below. especially #8. Then read all the compliants on the talk page. Im writing someting up.

https://en.wikipedia.org/wiki/Audio_power  

@kijanki 

to me

From Wikipedia "Audio Power"

As described above, the term average power refers to the average value of the instantaneous power waveform over time. As this is typically derived from the root mean square (RMS) of the sine wave voltage,[6] it is often referred to as "RMS power" or "watts RMS", but this is incorrect: it is not the RMS value of the power waveform (which would be a larger, but meaningless, number).[7][8][9][10] (The erroneous term "watts RMS" is actually used in CE regulations.[11]) This is also referred to as the nominal value, there being a regulatory requirement to use it.

Al, leave it (he is not going to get it). . 

@kijanki  Feedback lowers output impedance. You cannot make exact doubling of the power if DF=10.

Of course feedback lowers output impedance. However that has nothing do to with output power at clipping. Its not like there is some resistor in there.

I assume you are adjusting the input level as you explore these power output levels. 

What is this EXACT doubling of power all about.. Why does it have to be exact? 

I think, we are talking about two different things.  I have never mentioned actual amplifier's power at clipping but rather manufacturer's specifications (that are quite different), that calls for power doubling (or close to it). 

I have also noticed personal comments from you, placing my math ability in question and calling me to learn basic electronics.  I believe that I have some comprehension of basic electronics designing it for 40 years and therefore I view your comments as harmful, therefore refusing to comment on anything you have to say from this point on.  Perhaps one day, when you change your attitude we can start talking again.

@kijanki I think, we are talking about two different things. I have never mentioned actual amplifier’s power at clipping but rather manufacturer’s specifications (that are quite different), that calls for power doubling (or close to it). I have also noticed personal comments from you, placing my math ability in question and calling me to learn basic electronics. I believe that I have some comprehension of basic electronics designing it for 40 years and therefore I view your comments as harmful, therefore refusing to comment on anything you have to say from this point on. Perhaps one day, when you change your attitude we can start talking again

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If we are talking about two different things what are they? Im just talking about simple RMS power. I try to make my comments as non personal as possible. I will go back and have a look at them and apologize appropriately. Im not here to pick a fight. Lets just get the information right. :)

I still dont see why a manfacturer calling for power doubing on a piece of paper has anything do to with what the amp does. What spec makes it different than clippiing. Most power amps have very low distortion till they clip.

Declining to answer simple questions or support statements does us no good in a forum. I am here trying to correct things. If I am incorrect then bring me the proof. This is really simple stuff.

Im sure you math skills are fine. This is about a concept. Starting a post with "There is no such thing as RMS power." Is rather bold. We measure it all the time. If one wants to be contrary to accepted terms he had better have some good material to back it up. This I have not seen.

I was fine having a discussion until you quoted a very poor Wickipedia article and.. did you have to add to AL ???

Al, leave it (he is not going to get it). .

I politely objected to that. Not going to get it? I also offered to apologize if I was incorrect.

Why not build a few amplifiers to see if your theories are correct and dont forget the emitter resistors..  :)

Ramtubes, PEACE!  I'm sorry for my comments.  It was uncalled for.  I have short fuse (electrical term :) ) recently, since I completely lost hearing in the right ear few months ago (replaced by loud white noise - so much for Benchmark's fantastic S/N ratio).  I will probably stay for a while, learning and possibly helping, but I slowly loose interest in this hobby.  Am I the perfect candidate for bridging AHB2 (only one channel needed)?  Again peace, man.