I didn’t mean that you made it up. But Parasound did.
Why? Because class “A/AB” is not a recognized class of amplifier. If you disagree, show me a respected electrical engineering textbook that lists “A/AB.” But don’t show me Parasound marketing material - that’s meaningless.
Lots of amp companies want to be viewed as class A when they are not, and will also use made-up class names that are not recognized. Cambridge Audio uses class XA, for example. Again, made up marketing name.
Either class A or class A/B, and Parasound is class A/B.
I have to say that this moment I do not have any ‘skin’ in this game. However that being said, I have been in the audio game for a very long time.
And in all that time, I have yet to run across an (A/AB) amp!!
Yes we all know about class A amps and we all know about class A/B, but nothing about A/AB class.
How come?
Now you might be right that in the twisted mind of John Curl, him thinking that there is a A/AB class.
But at this time he is just blowing smoke and there is not a class A/AB termination. Maybe Parasound needs some help selling their amps and told Curl to go blow smoke for them, but who actually knows?
If you have ever spoken to Curl then you know from experience that he marches to a totally different drummer…and blatantly so my friends, blatantly so!!!
Good luck with your dream walking…
Someone’s got to tilt at the windmills?
Going back to the Audio 1986 Annual Equipment Directory (no longer exists)
A number of Class A/AB amps are listed. Among them are:
on Page 173
Athena M1 and M2 Class A/AB
Page 180
Music Reference A/AB
Page 182
Perreaux AMF 1050, 1850, 3150 Class A/AB
Page 184
Rowland research 5 and 7 Class A/AB
Then again in the Audio 1988 Annual Equipment Directory we again find
Class A/AB amplifiers.
On page 175
Aragon 2004, 4004 Class A/AB
Page 192
Octave Research OR1 Class A/AB
PSE Audio Studio IV Class A/AB
Perreaux PMF 5500, 3150, 2350 Class A/AB
Page 197
Jeff Rowland Group…5 and 7 Differential Mode Class A/AB
Page 203
Threshold S1600, S500, S300, S200…Class A/AB
Amazing that the term Class A/AB was utilized in describing amplifier
classes way back 35 years ago…
So no, John Curl was not contriving the term Class A/AB…
Has anyone here hear of Class A/B1 ? or A/BB ? yet there are
amps listed there with just that class of operation…
This is what I was able to dig up…and find it amazing that
some Thresholds are listed as Class A/AB Stasis others
just Stasis.
Replaced the two body Panasonic player and recorder with the simple RCA. The Panasonic 4-head player cost a relative fortune back in those days. I think Battlestar Gallactica may have been the first thing I watched.
It’s an academic dispute anyway and probably not worth spending more time on.
I’m happy to stand corrected if in fact whatever “A/AB” is - is outside of class A/B. But I’d be shocked if that were the case. (30 years since I studied EE though so……)
I think this is like a dispute over barnyard animals.
I’m saying for simplicity there are only 3 broad types of barnyard animals - cows (class A), horses (class A/B), and chickens (class D). [yes I know there are both more types of barnyard animals and amplifier classes (I’m a long since pivoted EE and grew up on a farm, ha!), but play along]
I am saying class A/AB is a horse. Maybe a certain type of horse, but a horse nonetheless, and certainly not a cow.
Davida is saying class A/AB isn’t a horse, it’s a Clydesdale. To which I say, it’s still a horse.