I was talking with @JOME77 about this the other day but thought I'd share it here too. I've always had a stigma against the Auguilar OBP-3 preamp because I've never seemed to gel with one in any bass I've had. It's not that it sounds terrible, just not my preference compared to the many other preamp options these days. And I've always felt like the EQ stack is way too sensitive, meaning turning the dials just a little can result in too much boost/cut. In Roscoe basses I've had Bartolini, Demeter, Nordstrand and even Audere. I recently picked up a Roscoe with an OBP-3 preamp and Roscoe Barts. I fully intended on swapping out the preamp but I'm really surprised at how much I like what I hear. I don't know what it is, but the combination of the OBP-3 with Roscoe Bart soaps sounds really good to my ear. I think I'd describe it is as more open/less compressed sounding than the Bart preamp. I don't really need to boost the lows or highs at all.... just use the Mids dial almost like a tone control. The OPB-3 is quieter than Bartolini preamps too. Have you noticed how the Bart seem to react more to being too close to a preamp/amp with static? I don't think I'm going to swap the preamp after all. I'll enjoy this one as is for now.
