This pickup was an instant improvement to the stock epiphone alinco pickup I previously had installed in the bridge of my eppy custom,the pickup I noticed sounds instantly bright for a humbucker, I feel that there is a much better bass response in this pickup as previously the stock pickup could sound quite muddy at times when handeling lower frequencies, this pickup sounds great when handeling a higher gain setting which you probably wouldnt use an ordinary classic 57 for but with the extra coils its top notch, but what else would you expect from a Gibson product?