How To Measure "Current" In An Amplifier?


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I've heard lots of times that an amplifier needs lots of "current" to drive a low impedance load.  
Is there any measurement on a spec sheet that would measure current?  
A high watts per channel amp does not necessarily mean that the amp has high current.
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mitch4t
@unsound

You probably already know this, but take a look at my LM-1 speaker measurements. It is NOT tube friendly like the Thiel. Notice the 24 Ohm peak in the bass and 16 Ohm impedance peak where the woofer and tweeter response meet.

http://speakermakersjourney.blogspot.com/2016/05/lm-1-bookshelf-measurements.html

These peaks are what the Thiel crossover was trying to avoid.

On the other hand, a solid state design would play beautifully with the LM-1

Best,

Erik


Thanks Almarg. Understood. And Ralph's explanation was a bit "over-my-head". :)

Erik, in answer to your question, Musical Fidelity M6si amp and Golden Ear Triton One speakers. 
Ahhhh.....

The GE Tritons are electrically and acoustically complicated beasties and exactly the kind of speaker design I've learned to avoid. Make yourself happy of course, though.

As for the amp, I would say that since they are excluding 4 ohm measurements and damping factor they are not particularly proud of it's output into low impedances.

Not the best match, surely.



Erik


I would say that since they are excluding 4 ohm measurements and damping factor they are not particularly proud of it’s output into low impedances.
Erik, just as a point of info the M6si manual indicates a damping factor of 180.

I’ll mention also that once damping factor gets above say a few tens (in other words, away from tube amp territory) I would not expect much if any correlation between damping factor and performance into low impedances.

Best regards,
-- Al