Changing speaker ohms

[devastone]

I asked Harley Benton who made the can and they said that the through jack on my 2x12 cab will pass 8 ohms to the cab it is hooked up to.

I don't think you are understanding the whole ohms thing. Ohms don't get "passed" they are the impedance of the speaker(s) (we can call it resistance for simplification but it is technically impedance).

If you amp is rated at 8 ohms minimum, you can use 1X 8 ohm cab or 2X 16 ohm cabs in parallel. The jacks on the amp are paralleled. Making your 1-12 cabinet 8 ohms and using it with another 8 ohm cab will be an impedance of 4 ohms, which means the amp will try to supply more current, which could potentially overheat the output transformer and/or damage the output tubes. If you want to use both speaker jacks on the SuperSonic, you need 2 16 ohm cabinets.

[Mikelamury]

I like the 70/80.

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I'm not saying it's a bad speaker, it has an very deep low end but it is just not for me but I can see them working for someone playing a more aggressive style of music or down tuned metal.

[devastone]

2X 8 ohm cabinets is 4 ohms, unless they are hooked up in series, then it would be 16 ohms, but that usually requires some special cabling. Can you send a link to the 2-12 cabinet in question?

But yes, the cabinet will pass a signal through, but the TOTAL impedance won't be 8 ohms after it is hooked to something else.

Also note that it won't split the power equally to the speakers.

[Mikelamury]

2X 8 ohm cabinets is 4 ohms, unless they are hooked up in series, then it would be 16 ohms, but that usually requires some special cabling. Can you send a link to the 2-12 cabinet in question?

But yes, the cabinet will pass a signal through, but the TOTAL impedance won't be 8 ohms after it is hooked to something else.

Also note that it won't split the power equally to the speakers.

I was wording that incorrectly, I understand the ohms are resistance what I meant by passing ohms is that Harley Benton said that the through jack on the 2x12cab(which is 8ohms) would pass a signal needing 8 ohms of resistance.is this not true? I was misunderstanding the speaker jacks on the amp thanks for pointing that out. That seems weird that one jack is 8ohms but if I plug into the other jack it makes both jacks have 16 ohms of resistance? Am I understanding you correctly? Thanks for clarifying this for me as I was not clear on this subject myself.

[Mikelamury]

2X 8 ohm cabinets is 4 ohms, unless they are hooked up in series, then it would be 16 ohms, but that usually requires some special cabling. Can you send a link to the 2-12 cabinet in question?

But yes, the cabinet will pass a signal through, but the TOTAL impedance won't be 8 ohms after it is hooked to something else.

Also note that it won't split the power equally to the speakers.

https://harleybenton.com/product/g212-vintage-vertical/

Thanks for helping me to understand this it doesn't give much info on the website so I sent an email to them asking about the through jack and got the reply in really broken English so Im not surprised if they were incorrect or mistaken.

[devastone]

Yes, you can plug the INPUT jack to the amp, and use the THROUGH jack to go to another cabinet, I am 99.9% sure that is a parallel connection, so when you plug into another 8 ohm cab you have a total impedance of 4 ohms, which is too low for your Super Sonic 22.

[Mikelamury]

Yes, you can plug the INPUT jack to the amp, and use the THROUGH jack to go to another cabinet, I am 99.9% sure that is a parallel connection, so when you plug into another 8 ohm cab you have a total impedance of 4 ohms, which is too low for your Super Sonic 22.

Ok thanks for the help with that do it's looking like I might not be able to hook both cabs up together but I guess I can use them separately or maybe replace one of the v30's with the A type...

[devastone]

Yes, or no, you can't use both cabinets together.

[jeremy]

if the two v30s are 16ohms wired parallel, which is what i would assume for a 8ohm 2x12 cab, you cant just swap the 8 ohm speaker in without changing the impedance of the cab

[devastone]

I missed that, no, you can't put an 8 ohm speaker in parallel with a 16 ohm speaker in the cabinet.

[jeremy]

well, you can, but it wont be the same impedance. almost any time you mix two cabs, you are always doing so in parallel wiring. within one cab, you can have series or parallel wiring. you need to understand how mixing impedance, whether its two speakers, or two cabs, works before going any further to save yourself some frustration

[Mikelamury]

well, you can, but it wont be the same impedance. almost any time you mix two cabs, you are always doing so in parallel wiring. within one cab, you can have series or parallel wiring. you need to understand how mixing impedance, whether its two speakers, or two cabs, works before going any further to save yourself some frustration

I was assuming that the 2 v30's we're both 8 ohm but I'm not sure I will find out. So is it not possible to have 2 8 ohm speakers in a cab needing 8 ohms of resistance from the amp?

[jeremy]

correct. 8 + 8 can either be 16 ohms (in series) or 4 ohms (in parallel). you can mix an 8 ohm speaker with a 16 ohm speaker in a cab but you end up with an impedance that is outside of what amps usually want to see. doesnt mean it cant be done, but should be done with caution and understanding of what you are doing and how your amp will deal with it and how the mismatch will dictate how the speakers interact

[devastone]

well, you can, but it wont be the same impedance. almost any time you mix two cabs, you are always doing so in parallel wiring. within one cab, you can have series or parallel wiring. you need to understand how mixing impedance, whether its two speakers, or two cabs, works before going any further to save yourself some frustration

Probably best to stick to basics, no, it's not a good idea to mix impedances.

Yes, but it also splits the power to the speakers unevenly.

[jeremy]

very true