2. amps-preamps
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How long does Class A have?

Hi Guys/Gals
 I have a Sugden A21SE which is a Pure Class A single ended design, I absolutely love this musical amplifier with its strangely plentiful 30wpc, it runs hots as they do, I always enjoy watching the faces of my uninitiated friends when they touch it after I mention they get hot, lol.
But in this modern green era I wonder just how long do Class A amplifiers have before Greta Thunberg gets wind of this inefficient method of creating sound and pisses on the parade?

Thoughts?
mrmeaner
tomic601's avatar
tomic601
12,957 posts
 
i hope i can keep my flintlock….


invalid
1,209 posts
 
electricity is getting more expensive, not less. I ve owned class A heaters, and 250w tube heaters, so there’s the added cost to cool the room.


I have to laugh when someone that spends 20,000 plus on class A amps, then they complain about the electric bill. 
spenav
431 posts
 
@wjt3
My bad. I have no excuse since I own his amp too. 
jjss49's avatar
Ag insider logo xs@2x
jjss49
6,612 posts
 
we knew what you meant spencer... and good point you made there...  :)
georgehifi's avatar
georgehifi
10,312 posts
 
Why don’t manufacturers list the amount of amps (current) their amplifiers and receivers put out. It is nothing to do with watts. It all has to do about current.

I think they hide this number because they know their amplifiers do not produce much current.

Why? if they can’t do it they will miss out on a sale.

Listing the amount of current and watts and close to double into 8 then 4 and 2ohms, will give an indication if the amp can drive nasty loads, that so many of todays hiend speakers have. Not good for so many amps, Tube, Class-D and many Mosfet, have trouble into those speakers like Wilson Alexia 0.9ohm in the bass, your big BJT (Bi-Polar) output amps do well there Krell, Gryphon, Agostino, Mark Levinson etc etc


Cheers George


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