Combo + cab - impedance?

iBrows

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I need a little help with impedance here.

I have an Orange AD30R combo with two G12H-30 8 ohm speakers and a Marshall 2 x 12 cab with two V30 16 ohm speakers.

The Orange has three speaker outputs: two 8 ohm and one 16 ohm.

I've set it up like this, so that all four speakers are playing at the same time:

The combo is plugged into the 8 ohm output and the cabinet is plugged into the other 8 ohm output.

Am I doing it the right way, or am I frying my amp?
 

JakeM

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There is a sticky at the top of the page to help answer this
 

dwagar

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Always check the owners manual. You are doing it right.

When using a single Orange 16 ohm speaker cabinet, (i.e. PPC412 or PPC212), attach it to the 16 ohm output socket on your amplifier.
When using two Orange 16 ohm speaker cabinets attach each one to a separate 8 ohm
output socket on your amplifier.
When using a single 8 ohm cabinet attach it to either one of the two 8 ohm output
sockets on your amplifier.
WARNING: Never use two 8 ohm cabinets at the same time.
 

PapaSquash

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Wait.

The Marshall 2x12 can't be a 16ohm load. It has to be either 8 or 32. Most likely 8 as a 32ohm cab would be an unusual beast.

the manual says a 16 in each of the two 8ohm inputs is good, but you are likely to be presenting it with one 16ohm load (the combo) and one 8ohm load (the cab).

Not sure how your Orange is going to like that. If the marshall is a 32 you're probably safe. Too much load is generally not bad for the Amp.
 

dwagar

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good catch, I misread it to being a Marshall 16 ohm cab.
 

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