[Dopaminer]

I`ve just found this amplifier : 
 
It translates as being a current feedback amplifier, run by 4 AAA batteries.  Looks kind of interesting but I have no idea what it means.   
 
Anyone ?  

 

[billybob_jcv]

All I know is that there are two different types of op amps, Voltage Feedback Amplifiers (VFA), and Current Feedback Amplifiers (CFA), and there are supposed to be advantages and disadvantages to both types. Beyond that, or how that applies to amping the average audio signal, I have no idea. Maybe the guys in the DIY or Sound Science forum would know? Or, you could try diyaudio.com - but if you go there, be prepared to get answers that are make no more sense than "Current Feedback Amplifier" - those propeller heads are great guys, but explaining things to non-propeller heads is not their strong suit!