speaker connection

[sevycat]

I feel like a tool for asking this question which I think I alreay know the answer, but wtf I am going to ask anyway.

On a MK V combo, where do you plug in the 8 ohm speaker, there are 2 8 ohm ports on the back of the combo. the word combo is between the upper and lower 8 ohm jack inputs.

So, does it matter if it's the upper or lower one or not at all.

 

[LPJunky]

Same thing. They are connected to each other from the inside of the chassis. Don't worry.

BUT you have to have something connected before you turn the amp on.

 

[screamingdaisy]

It doesn't matter which you choose (top or bottom).

 

[SST]

I have a question. I have a combo with the combo speaker into the 8 ohm jack. I also have an 8 Ohm 2X12 cab (one celestion vintage 30 one celestion heritage G12H) that I plug in to the 8 ohm jack right above this. I am doing this correctly?

 

[LPJunky]

SST ! Beware! What you are doing is connecting 2 x 8 ohms loads in parallel so you actually have only a total load of 4 ohms and you risk frying your output transformer!!

Because both 8 ohms outputs are connected in parallel internally and similarly for the 2 x 4 ohms outputs, you have to connect both the combo speaker and your 8 ohms cab in each of the 4 ohms cab. That way its a perfect match. Electrically at least. I am not sure how balanced they are regarding sensitivity. You migth have one that sound louder than the other but no harm will be done.

 

[eudaimonia02912]

SST: If you are using the combo speaker at the same time as an 8 ohm external cab, you need to plug each of those into the 4 ohm jacks.

 

[boogieman60]

Yes . If you look closely at the back of the amp where the speaker jacks are located, it says in between the 4 ohm jacks 2x8ohm. Also if you look in the manual on page 56 you will see that the correct way to use the combo with an 8 ohm ex. cab is to plug them both in the 4 ohm plugs.