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 Post subject: 1960 A 4 ohm cab
PostPosted: Thu Jun 16, 2016 9:33 am 
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Bottle Rocket

Joined: Mon Feb 03, 2014 10:32 pm
Posts: 17
I think I know the answer to this but am asking cause I didn't want to argue w/ someone when I wasn't sure. I've got a 5 50 express that I wanna hook up to a cabinet for a upcoming gig. have a marshall 4 ohm 4 12 available but pretty sure I shouldn't plug it into my express. The manual says I can plug my combo speaker into 1 of the 2 4 ohm jacks on back of amp and cab into other jack as long as cab is 8 ohms, right ??
any help would be great
Thanks
Scot


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 Post subject: Re: 1960 A 4 ohm cab
PostPosted: Thu Jun 16, 2016 10:20 am 
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Mark IV
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Yes, assuming the speaker in the 5:50 is 8 ohms and it likely is, unless it was changed out. And yes you would be using the 4 ohm jacks.
The 4 ohm cab should only be used by itself. :)

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 Post subject: Re: 1960 A 4 ohm cab
PostPosted: Thu Jun 16, 2016 1:26 pm 
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Bottle Rocket

Joined: Mon Feb 03, 2014 10:32 pm
Posts: 17
The 4 ohm cab should only be used by itself.
Does that mean I can use the 4 ohm cab with my combo as an extension with out my combo speaker ? (yes it is still the 8 ohm speaker)


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 Post subject: Re: 1960 A 4 ohm cab
PostPosted: Thu Jun 16, 2016 3:50 pm 
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Bottle Rocket

Joined: Mon Feb 03, 2014 10:32 pm
Posts: 17
Okay I've done a little research and am now more confused :lol: the cabinet is either 4 or 16 ohm in mono or 8 ohms in stereo. what I gather is that I can just unplug my combo speaker and connect the 16 ohm mono jack of the cabinet into the single 8 ohm jack on amp and should be okay ?? and leave the 2 4ohm jacks empty. sorry don't really understand the impendence conversions, up good down bad


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 Post subject: Re: 1960 A 4 ohm cab
PostPosted: Fri Jun 24, 2016 8:30 am 
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Donating Member

Joined: Mon Jun 30, 2008 4:12 pm
Posts: 396
A 1960 cab should be 16ohms, so if it's 4ohms total, it has been rewired. If you bought it used and aren't sure, I'd open it and confirm both the speaker impedance and the wiring scheme. Then you can connect it to your amp armed with real knowledge.

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 Post subject: Re: 1960 A 4 ohm cab
PostPosted: Fri Jun 24, 2016 12:32 pm 
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Mark III

Joined: Tue Aug 30, 2011 4:35 pm
Posts: 159
8ohm output on the express into the 16ohm box is ok..

if you want to use 4ohm outputs you need to use both of them at the same time...for example with two 1x12 8ohm boxes...thats it!
it's explained in the manual..

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