4 ohm Bass head on two 8ohm cabs?

BassPunisher420

BassPunisher420

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Aug 4, 2016
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#1
I own a Hartke VX3500 combo amp.

It is a 350 watt head combo'd with a vx410 cab.

The head ONLY offers a 4 ohm option going into the 8 Ohm cab. which is the way its meant to be used.

Today i found another vx410 cab that is also an 8 ohm.

My question is can i run the one head, thats 350 watt at 4 ohm to 2 vx410 cabs which are 8 ohms each?
 
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#4
Are you planning on separating the head from the cab? Re-reading your post I am not sure what you are trying to do.
Two 8ohm cabs in series (not recommended) would be 16ohm. You'll lose a bit of power doing this.
 
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#9
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#10
Dont. The cabs do not match, if you run those in parallel, simple to do using a Y-splitter, you will get 2.7ohm and you will roast that amp. Wiring cabs in series (trycky to do) will give you 12ohms (lowering your total power) and the power distribution will be off. The internal cab will still get 70% of the power and only 30% to the 8ohm.

If you are determined then replace the 4ohm drivers in the combo with 8ohms then you will have two 8ohm cabinets you can pair up
 
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#12
BassPunisher420 said:
I own a Hartke VX3500 combo amp.

It is a 350 watt head combo'd with a vx410 cab.

The head ONLY offers a 4 ohm option going into the 8 Ohm cab. which is the way its meant to be used.

Today i found another vx410 cab that is also an 8 ohm.

My question is can i run the one head, thats 350 watt at 4 ohm to 2 vx410 cabs which are 8 ohms each?
Click to expand...

The manual says this:

WARNING:
In order to get the full 350 watts of power and the maximum output
volume, the VX3500’s internal speaker system has an impedance of 4 ohms. Do
not connect additional speakers to the SPEAKER OUTPUT, unless you discon-
nect the internal speakers. Connecting external speakers without disconnecting
the internal speaker system may result in serious damage to your amplifier that
will not be covered under the warranty.
 
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#17
Josh Kneisel said:
I'm sure someone mentioned it, but chain them and they will be at 4 ohms. no issues aside from be aware of wattage.
Click to expand...
Actually, no. The internal 410 has a 4 ohm impedance. The external 410 is an 8 ohm cab. 4 + 8 = 2.67 ohms.
 
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#18
BassPunisher420 said:
what about in series? it only has one output. can i use some kind of spliter?
Click to expand...
BassPunnisher420, unless the output on the back or your cab says it is a series output, that is a parallel output and two 8 ohm cabinets hooked up to your amp by "daisy-chaining" them will put a 4 ohm load on your amp, which is perfect. Same thing if you plug both cabs into the back of your amp. Those connections are all parallel connections unless marked otherwise. It's the industry standard.
 
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#19
If your internal speaker on your combo is 4 ohms, check in the manual to see if you can bypass it. Running a 4 ohm speaker load from your combo and adding another 8 ohm speaker cabinet to it will roast your amp. If you can bypass the internal speaker, get a single 4 ohm 410 cab or two 8 ohm cabs to get the most from your set-up.

You can also get a series/parallel switch box to hook them up in series, which will then put a 12 ohm load on it. It will be very safe and your amp might never get above warm using it that way because it will put out a lot less power. However, the additional speaker area from the 410 should more than compensate for it. I ran a 212 and 115 cab that way for a while. Not the best solution but better than just the speaker in the combo I had.
 
#20
Rip Van Dan said:
BassPunnisher420, unless the output on the back or your cab says it is a series output, that is a parallel output and two 8 ohm cabinets hooked up to your amp by "daisy-chaining" them will put a 4 ohm load on your amp, which is perfect. Same thing if you plug both cabs into the back of your amp. Those connections are all parallel connections unless marked otherwise. It's the industry standard.

So hook 'em up and Rock on!
Click to expand...
Please read the rest of the thread before you give OP advice that will ruin his amp. OP wrongly assumed he had 2 8ohm cabs. He has a combo that IS putting out a 4 ohm load, and asked about connected an 8 ohm cab to it. This will not work.
 
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