I'm such a fool.....been playing GK for years (current 1001RBII, previous - Goldline 500, 1000RB and another 1001RBII, MB500) and have always been convinced I didn't like their preamps so always ran a tube emulator in front of all of them. I struggled with tone a little but finally found what I thought was my sound UNTIL last night. Forgot all of my pedals (tube BDI, noise reducer, compressor) last night for rehearsal and I was pissed. Grabbed cord, plugged my PJ bass directly into the 1001RBII, minimally tweaked the preamp (contour at noon, boost at noon, highs/high mids at noon, low mids rolled off all the way and bass rolled to 8am - almost off, woofer at 100% and gain/volume around 11:30am) and VOILA! Damn! It's the tone I've been looking for and it's been right under my nose the whole time. Singer/guitarist and drummer both told me my tone has never sounded better. Took me long enough but finally found it........ Oh....cabinet running this through is an Avatar non neo 412 (absolute brute of a 412 - 2000watts rms and about 105lbs but worth it).