My CHA47 PIC/SCH | Headphone Reviews and Discussion - Head-Fi.org

digi01 · Apr 28, 2003 at 12:28 AM

pic of front :

digi01 · Apr 28, 2003 at 12:28 AM

pic of inside :

digi01 · Apr 28, 2003 at 12:29 AM

pic of sch :

yejun · Apr 28, 2003 at 12:34 AM

why put the last 47Ohm resistor?

digi01 · Apr 28, 2003 at 1:16 AM

Function of the resistance has already discussed

"is an optional load resistor, which reduces residual hiss when the amp is driving low impedance headphones such as the Grados (32 ohms)."

http://headwize2.powerpill.org/proje...=cmoy2_prj.htm

yejun · Apr 28, 2003 at 1:22 AM

but there's already 47/2 Ohm load resistor, or if they are not big enough why not simply increase the first 2 47Ohm resistors?

digi01 · Jul 1, 2003 at 3:23 AM

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