Yet another Ohms Question

[Satch1222]

I have a Combo with a 16 ohm speaker in it. It has 1 16 ohm input and 2 8 ohm inputs. I can plug the 16 ohm speaker that came with the combo into one 8 ohm input and then I could plug another 16 ohm extension cabinet into the other 8 ohm input, correct?

I believe there are 16 ohm 2x12 cabs, so I could plug one of those into the second 8 ohm input along with the combo speaker and have 3 speakers running at once, correct?

 

[Koreldyre]

Re: Yet another Ohms Question

Both correct, but check the documentation or call the company just to be sure it's safe. Sometimes the current output ends up being too low. But load-wise that will work.

 

[Amateur]

Re: Yet another Ohms Question

Do you really mean a head and a cab or a combo with the amp and speaker in one box? A combo ususlly has output jacks for an extra speaker but no input jcak for an outside amp to come in. It is dangerous to do that. also, if yours is a tube amp, you want to make sure you match the resistance that is recommended by the amp manufacturer or you may end up damaging it. A solid state amp will let you get away with that if you have a higher resistance speaker than recommended.

 

[Satch1222]

Re: Yet another Ohms Question

Do you really mean a head and a cab or a combo with the amp and speaker in one box? A combo ususlly has output jacks for an extra speaker but no input jcak for an outside amp to come in. It is dangerous to do that. also, if yours is a tube amp, you want to make sure you match the resistance that is recommended by the amp manufacturer or you may end up damaging it. A solid state amp will let you get away with that if you have a higher resistance speaker than recommended.

It's a combo with one 16 ohm speaker stock, so the speaker plugs into the 16ohm input on the combo. The manufacturer says you can put a 16 ohm cab into one 8 ohm input and the stock speaker into the other 8 ohm input. They don't say the configuration of the 16 ohm cab, so I'm assuming you could do a 1x12, 2x12, or 4x12 as long as it's 16 ohms...that seems odd though because you don't see many 1x12 combos sitting on top of 4x12 cabinets...

 

[Amateur]

Re: Yet another Ohms Question

It's a combo with one 16 ohm speaker stock, so the speaker plugs into the 16ohm input on the combo. The manufacturer says you can put a 16 ohm cab into one 8 ohm input and the stock speaker into the other 8 ohm input. They don't say the configuration of the 16 ohm cab, so I'm assuming you could do a 1x12, 2x12, or 4x12 as long as it's 16 ohms...that seems odd though because you don't see many 1x12 combos sitting on top of 4x12 cabinets...

Sounds like you mis-called the output as an input. It may work as long as you keep the total impedence over 4 ohms if your amp is a solid state amp. What is the make and model of your amp anyways?

 

[Satch1222]

Re: Yet another Ohms Question

Sounds like you mis-called the output as an input. It may work as long as you keep the total impedence over 4 ohms if your amp is a solid state amp. What is the make and model of your amp anyways?

Those jack things on the back of the amp with numbers below them...I would of said that but it takes to long to type lol. It's an Orange Rocker 30..and I still don't understand why no one uses a 1x12 combo with a 2x12 cab...someone explain to me why this doesn't work...all I ever see are 1x12 combo's with 1x12 cabs...

 

[Amateur]

Re: Yet another Ohms Question

A 1x12 combo is an amplifier with a 12" speaker mounted inside the same box. A 1x12 cab is just a 12" speaker mounted inside a box while a 2x12 cab is two 12" speakers inside a box etc.
Any sound source that goes into the amplifier is called the input of the amplifer, while the sound source coming out of the amplifier into the speaker is called the output of the amplifer but also the input of the speaker.
All speakers have some kind of an electrical resistance which we uaually called impedence and is measured in ohms. The amplifier is designed to send the noise to the speaker at a certain voltage, or sometimes called potential, which will work best with the resistance of a speaker or speakers by design. A solid state amplifier has more tolerance for the variance of the speakers' impedence but the output transformer of a tube amplifier is not. It will be damaged easily if you have a mismatched impedence.
The Oranger Rocker 30 is a tube amp, so you should be a little bit more careful to match your speaker impedence.