[blitz1911]

Hey

I am deciding to build a MINT and wondering if these res values will be fine. I will be making it with either a AD8620 or a OPA2227.

R11k
R2470k
R31k
R410k
R51.5k
R6470k
R7100
R8100

Thanks for your help guys.

 

[Megaptera]

You'll have a gain of about 10.5 with that particular choice of R3/R4, which may or may not be too high for your taste. Most people I've seen use a gain of 2-4 for low-Z headphones, and 5-7 for high-Z.

Also, it is recommended that you keep R3 about 1/5 to 1/10 the value of R5, so you may want to consider fiddling with R3/R4.

Otherwise, it looks fine. Remember you need 2 of each of those, and one RLED. I personally try to get 5 for every pair I need, so I have spares, and can match pairs.