Optimizing a complex amp setup
I'm currently trying to over-nerd my live performance rig. And so I turn to you, TalkBass Forums, for wisdom and advice.
The signal chain looks like this: Bass feeds into a MOTU Microbook for preprocessing with Ableton Live, then into my GK MB150E-III. That acts both as a preamp and as the stage that powers its internal 12" speaker. From here, I take a line out of the FX send (hence, post-EQ and post-chorus effect when it is on) and send it to the speakers. And Here My Ambiguities Begin:
I have an Ashdown 4x10, a Peavey 4x10, and a ridiculous club subwoofer. Ampwise, I have a Behringer iNUKE 1000 and a Behringer BX4500H. Options I currently have to connect this gear:
A) iNUKE in mono mode with the crossover activated, connected to the Ashdown 4x10 on the full-range output, and the sub on the <100Hz output; BX4500H with the FX send from the GK hitting the BX's FX return (to bypass the preamp stage) powering the Peavey 4x10.
Schematic of Setup A
B) iNUKE in mono mode set to full range, pushing both 4x10s, and the BX4500H being fed into its passive input, then using its EQ to mimic a crossover (bass boosted, frequencies above "bass" cut as much as I can) powering the subwoofer.
Schematic of Setup B
The iNUKE in mono mode is good for 300W per speaker. The BX4500H at 8 ohms is also good for about 300W. If I put the iNUKE in bridge mode, it'll do a full 1000W, but I then have to build a special Y cable to make the 4-pole Speakon output connect properly, complicated further by the fact that the sub has a weird 3-blade locking NEMA connector.
Anyway. What do y'all think will sound the best, and thump the most?
Once you hit the amps, you should stop thinking about it as a bass rig, and start thinking about it as a multi cab pa system. I would get a crossover that can do 3-way mono. I'd send up to 60hz to the sub. From 60hz to 120hz to the peavey 4 x 10, and from 120 up to the ashdown.
I would then play with the x-over points till I find a balance. Use the inuke for the bottom two, and the bx for the ashdown.
As always, your mileage may vary. (I hate acronyms ;) )
Besides as you call it "over-nerding", what are you actually trying to accomplish? This isn't even really a nerd setup yet :P
Assuming this is actually something that works for you / your band and doesn't destroy FOH or on stage mix/volume... Neither A or B are really what I would do. Lilduke is getting closer to how I'd attack things - IMO just a better setup all together.
Between A and B, A has better chance of not sucking.
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