2 Stereo Cabinets, 2 Amps, 3 inputs - anyone try this?

[Ventura]

I'm going for a combo sound, here's the deal...

2 stereo wired Diezel 4x12 cabinets.
1 Diezel VH4S
1 Bogner Uberschall

My thought is to run the Diezel into both cabinets, mono into cabinet No.1 at 8 ohm, and use one of the stereo inputs on cabinet No.2 at 16 ohm. Fill the remaining input socket on cabinet No.2 with the lead from my Uberschall at 16 ohm.

My quest is to use some stereo fx through the Diezel, and to meld the tone of the Uberschall into the second cabinet. Cabinet No.1 is max rated at 120W (4 x G12H30) and Cabinet No.2 is rated at 400W (4 x G12K100FL). I'm guessing that either half of the No.2 cabinet will handle the 1/2 stereo output of the VH4S and the other half will handle the full input of the Uberschall. I won't be diming this set up...just seeing how it sounds.

Does the VH4S handle multi-varied resistance loads? As in 1 x 8 ohm and 1 x 16 ohm? It would be necessary for it to do this in order to try this configuration.

Anyone ever play around with this? And if you're wondering, the guitar signal will be AB/Y'd into both amps.

Peace,
V.

 

[steve_k]

Stereo amps are basically two separate amps, running different outputs and running different ohm loads on each side I wouldn't think would be a problem. Your manual should address this though.

A/B/Y'ing the amps is not a problem. There are loads of splitters on the market with ground lift and phase control. You can go cheaper with Whirlwind or Radial, or step up to Voodoo, Lehle or Axess Electronics or go for the high end with Little Labs or Bradshaw. Not all isolation and splitter boxes are the same, so beware. Do your homework and stay on the higher end of quality as it only takes a little noise to ruin your day.

Steve

 

[nbarts]

Just treat your VH4s as 2 separate amp heads & you should be fine.

 

[Ventura]

Granted. But the key here is can a stereo wired cabinet be treated like 2 separate cabinets? In the example given, think of it as less of an amp thing - as I'm cool with varied ohm loads into two separate leads. That's all good. But take 2 cabinets, both 4x12. With the above example given, the equation would be like 4(VH4S)x12 [mono] + 2(VH4S)x12 [1/2 stereo cab 4x12] + 2(Uberschall)x12 [1/2 stereo cab]. Essentially, 8 speakers divided up into 2 cabinets. 4(cab #1) + 2(half of cab #2) will be run by the VH4S and the leftover 2(other half of cab #2) run by the Uber.

I'll sort it out. Bottom line is I'm guessing this is going to sound a bit north of f*ckin awesome

And this is NOT to say the Diezel ain't just sonic beauty on its own. I'm just trying to garner my own unique, vicious, thick, perfect, semi-industrial, modern metal, soulful with vintage, slash-sleeps-with-tool-sleeps-with-isis kinda vibe!!

Peace,
V.

 

[nbarts]

yea, stereo wired cabinet can be treated as 2 cabinets, as long as you understand what's happening there. most of 4x12 have 2 8ohm speakers in series, which makes 16ohm per side. when you run mono those 2 sides connect in parallel, which makes it 8ohm mono. inserting a cable into NON mono insert shorts the parallel connection, thus you have 2 16ohm cabinets in one. You can even run your 4x12 as a 16ohm 2x12 using the second (not mono) input only.