Cross-posted this in a few spots to see what the hive-mind thinks:
The last few weeks, I've been working on getting my fuzz to cut a bit more. Today, I upped the presence and treble on my amp slightly. Not enough to really make much of a noticeable difference on my clean tone, but it really seemed to help my dirt cut. In doing so, I also briefly used the bi-amp feature of my GK 700RB-II/410 Neo, which I had stopped doing a few months ago. It sounded almost identical to the full range settings on the amp/cab. However, when I switched basses, for whatever reason, that made my dirt sound TERRIBLE. Way too much treble, totally different tones, and not in a good way. I was plenty shocked.
This was very much noticeable when I switched basses. I have an SR505 (with upgraded Bart pre) and a stock SRX505. In short, both basses sounded great with full range, and the SR505 sounded pretty much the same when going between full range and bi-amp. But the SRX505 sounded far different in bi-amp. Anyway - question time. What may have caused that? The "good" bass has an aftermarket Bart preamp that I love, and the "bad" bass has the stock Ibanez one. I've considered upgrading that one (and am actively looking at options), as I've always heard Ibanez pres are the weak link and I loved the difference in my other bass. Would a stock preamp be THAT much noisier and different than an aftermarket one? It just seems so odd that the tones between full range and bi-amp are so different for one bass and not the other. Thanks in advance. I also plan on cross-posting this to both my Ibanez and GK threads to see if any of them have experience.