I am assembling a Preamp/Power amp Bass rig to complement my Roscoe LG3005 5 string bass (Bartolini's with Aguilar 18V 2-way active Electronics) feeding a Bergantino 322 bass cabinet. (1x12, 2x10's and the famous Bergie Horn). I play mostly Blues/R&B/Funk/Motown/Jazz. My preamp decision is yet to be made. I'm following the preamp threads in that regard. Choices are down to Demeter VTBP-201, Kern 777, EBS Classic or maybe a used SWR Grand Prix or an RBI to save some money for now. Im still undecided at this point. I'm trying to decide which make and model of Power Amp to choose. How much power is the best match for the 4-ohm Bergantino cabinet without going overkill? I've read a few TB'ers are using the QSC PLX 2402 (2400W Bridged - 4 ohms). Some are even using the QSC 3002/3402 series. Yikes! That's some serious headroom! (3000W - 3400W @ 4 ohms bridged mono!) At the normal volume levels I play at, would I notice any sonic performance differences if I chose the QSC PLX 1602? (1600W @ 4 ohms bridged mono) versus the higher powered QSC amps like the 2402 or 3002/3402? I'm leaning toward the PLX 2402 if the PLX 1602 is not quite enough headroom for the Bergantino. Is it unnecessary and overkill to go from the PLX 2402 to the 3002 or 3402 Series QSC's? At this point, I'm not interested in paying for more power than I need if it only amounts to 'bragging' rights. If there is however, a sonic difference, that would be noticeable, I'd like to know which QSC PLX amp you recommend for the Bergantino 322 cabinet. My desire for serious power is about tight, focused low B-string transient response with good punch across the entire frequency range at normal band volume levels. I don't play at "stupid" volume levels. (Anymore that is. Sigh. I dont miss the ringing in my ears) It's bad enough putting up with all the voices in my head ...but I digress. ;-) Lastly, someone told me that he thought the PLX series amps were a bit skewed to the low end on behalf of DJ"s who prefer the QSC PLX amps because of a pronounced low/mid bass sonic bump. He said that the Stewart World amps (1.2, 1.6 or 2.1) are more sonically transparent. Any comments on whether there is a sonic difference between QSC PLX amps versus Stewart World amps? I also heard the World amps have been a bit less reliable. I'm strongly leaning toward the QSC PLX based on feedback in this forum from fellow working professionals. Your comments are most welcome. Thanks TB'ers!