New cab, ohm question

M

mysquaredontfit

New member
Hey fellas, I've just acquired a lovely Mojotone 410 loaded with celestion G10L-35 speakers (8 ohms each).

I've deduced that it's wired in series/parallel and wired normally to one of the input jacks (I do believe, but please correct me if I'm wrong). However, there is a second jack that runs the corresponding positive and negative wires straight from the first jack. I made an ugly diagram of how this looks, hoping it's not too messy to decipher. Could anyone tell me what the purpose of this second jack would be, and what ohm rating I should be getting from this setup?

incY9bN.jpg
 
Re: New cab, ohm question

That jack allows you to daisy chain another cabinet. (Use that as "out", and in on the next cab). Since the second cab would be in parallel, an additional 8 ohm cab would present a total 4 ohm load to the amp.
 
Re: New cab, ohm question

I figured that may have been it, but I wasn't sure and couldn't find (or properly search for) a diagram with an out jack. Thank you so much!
 
Re: New cab, ohm question

Yea, its just a way for you to hook up another cabinet, so you could run a 8x10 instead of a 4x10, or act. a 4x10x2 setup, or a 4x10 & a 4x12, 4x10 & a 1 or 2x12 cab, exe, exe??? As far as ohms, its whatever the cabinet is. I prob. should have looked @ your drawing a little better but I'm guessing It's prob. 8 or 16 ohms? I think if it's wired that way but it had 2x10's in it that would make it 16 ohms but by adding the other two 8 ohm speakers to the cab it takes it back to 8 ohms? I'm not 100% on that, so don't quote me, it's been a while since I built my 2x12 but I did have it all figured out @ one point!!! So I think it's 8 ohms but you could find out 4 sure on YouTube in about 3 minutes.? There's hundreds of videos explaining speaker impedance & amplifier cabinets. It doesn't say on the cabinet someplace?
 
Re: New cab, ohm question

Series/Parallel with 4 8ohm speakers is 8ohms load. Daisy chain another 8ohm cab and the amp sees a 4ohm load. What amp are you using?
 
Re: New cab, ohm question

I have a Mesa DC-5 head. It has an 8ohm out as well as two 4ohm outs (the owner's guide says to use the 4 ohm outs if using two 8 ohm loads, which I may do someday, I dunno. I really love how this little cabinet sounds).

I do believe I'm all set. Thanks guys!
 
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