These have lower output than other popular vintage-spec JM pickups (SD antiquity I, II, Fender AVRI 62). As a result they don't push my reverb tank like the AVRI 62 did, which I do not like. Other than that, they sound good. Crystal clear, balanced, scooped sound. Very "polite", not too trebley or ice-pick-y (even with 1Meg pots). They have bass but even at the neck pickup it is not overbearing. The AVRI62 sound like a half-cocked wah in comparison.