Halving a Berg NV412

[Fab Savage]

Hi guys

Does anyone have any experience and/or comments on potentially re-wiring an NV412 so that the top and bottom 2x12's could be connected to a separate amp?

In essence halving the 412 into 2 x 212's

The idea is to run 2 separate amps into the same cabinet.

Cheers

 

[Forrrest]

rewiring it shouldn't be too much trouble. can't hurt because it's easily reversible.
My NV412 has four 4 16Ohm speakers (in parallel)
there's two jacks at the back, just use one for each half.
can your two heads handle 8Ohms?

considering that the cab is a single chamber and you might get un solvable weird phase issues from the 2 amps. or when you have just 1 amp going, you are now using only 2 speakers with twice the air volume behind them then what was designed.
The NV412 is just such a perfect cab, I wouldn't fiddle with it an iota.
but jim's cabs really are perfect and balanced as is. any twerking could only make it worse (or less then the beast it is now)
if it was a peavey, or even a fender - sure.
let us know how it works out.
running two amps can be really fund & open up a broad sound pallet.
instead of halving mine, I just got a 2nd.!

 

[BassmanPaul]

If the cabinet is a single chamber you have to be careful that both sets of drivers are receiving the same signal. If you are using one set for effects and the other clean it is possible that one or more drivers could be damaged mechanically. If you run the clean side with the efects side silent, the two silent cones will work as passive radiators detuning the entire cabinet.