Changing the Gain of a Pimeta
Apr 11, 2004 at 10:19 PM Thread Starter Post #1 of 4

vtny

New Head-Fier
Joined
Oct 22, 2003
Posts
37
Likes
10
I have a couple of questions about the best way to change the gain on my Pimeta. Currently I have R3 = 1k, R4 = 10k, R5 = 3.32k, and R6 = 1.1M. Using Tangent's gain calculator this yeilds a gain of ~10.6.

Now I want to drop the gain to ~5 for my HD-580s. After palying around some more with the calculator it seems that I need to either change R3 to 2.2k or change R4 to 4.32k.

Of these two options which one is the best, or does it not mater which one I change? Do I need to worry about changing R5 or R6 when I change R3 or R4?

Thanks for your help,
vtny

edited for clarity
 
Apr 12, 2004 at 3:16 PM Post #3 of 4

tangent

Top Mall-Fi poster. The T in META42.
Formerly with Tangentsoft Parts Store
Joined
Sep 27, 2001
Posts
5,969
Likes
56
It's better to change R4 rather than R3, because that keeps the R3/R5 path consistent.
 
Apr 12, 2004 at 4:24 PM Post #4 of 4

vtny

New Head-Fier
Joined
Oct 22, 2003
Posts
37
Likes
10
Thanks Tangent
580smile.gif

I was hoping you would say that since I have a number of extra 4.32k resistors.

-vtny
 

Users who are viewing this thread

Top