Hi! For a new project, I plan to switch to a rack setup, my idea is: Use a Tech21 SansAmp RBI as a preamp into a Samson Servo 300 as a power amp. With this, for gig with a sound guy I can plug my Tech21 direct into the FOH, and for other gig or rehearsal without FOH, I'll play this setup as a normal head. I have some questions. First of all, I never played a Tech21 in "bass head replacement" setup. It always was as a preamp into a head, or as a DI. But for rehearsals or gig without FOH, does the RBI produce a good sound alone? not too weak? The lack of head is a problem? The Servo 300 is a Power Amp used for PA and can be bridged in mono to deliver 300w. But I'm not sure if this bridged mode can be plug into a 4x10 bass cab in 8ohm, with a speaker cable. Each informations I see about it mention the red and black cable for PA, but never the simple speaker cable into a bass speaker. Any idea about the way it works? Thank you for your help!