Members Syyle Posted July 24, 2009 Members Share Posted July 24, 2009 So this cabinet has 4 16ohm speakers. If it's wired in parallel/mono my total ohm impedance is 4 ohms correct? Therefore I should set my amp head to 4 ohms, right? BUT, what if my cabinet isn't wired for parallel? How do I know by looking at it if it's wired in parallel? If it's not, and it's wired in series, does my ohms impedance change? I know questions like this get asked a lot...just hoping for a quick "don't worry about it, turn the cab to 4 ohms/mono, turn the amp head to 4 ohms and rock the {censored} out." Link to comment Share on other sites More sharing options...
Members TrueBlueAutoX Posted July 24, 2009 Members Share Posted July 24, 2009 Got a multimeter? If not, it might help to buy one... Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 i don't is there any way to tell from the pic i posted? Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 another thought. until i figure things out exactly, the safest bet would be to set the amp head at 4 ohms and plug into the mono 4 ohm cab input; nothing could be damaged in this way right? Link to comment Share on other sites More sharing options...
Members Jisatsu Posted July 24, 2009 Members Share Posted July 24, 2009 another thought. until i figure things out exactly, the safest bet would be to set the amp head at 4 ohms and plug into the mono 4 ohm cab input; nothing could be damaged in this way right? If the cabinet isn't 4ohms (say it's 8ohms or 16ohms for example) plugging into the 4ohms on the amp could damage the output transformer and tubes. That is costly to fix. Until you know exactly what the ohmage of the cabinet is, I wouldn't do it bro. Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 the pic i posted here is the guts of my actual cabinet. all speakers are 16ohms, is there any way to tell from the pic whether it's in series or parallel? or does it really matter considering they are all 16 ohm speakers? from the usage i have put into the cab, i know all 4 speakers work, and work appropriately when i switch between stereo and mono (when in mono, all 4 have sound, when in stereo, either left side or right side creates sound depending on what side of the input jack i am plugged into). Link to comment Share on other sites More sharing options...
Members Jisatsu Posted July 24, 2009 Members Share Posted July 24, 2009 do yourself a favor and look up some wiring diagrams for speakers. I'm not going to do it for you Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 cool, thanks man. that didn't even cross my mind...*slaps forehead* Link to comment Share on other sites More sharing options...
Members Jisatsu Posted July 24, 2009 Members Share Posted July 24, 2009 btw, if you haven't changed the speakers in the cab at all and the cab is stock, mono or stereo the cab is wired for 8ohms. Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 ...? it's 16ohm speakers, 4 loads, = 4ohms at mono??? that's what it says on the back jack too... Link to comment Share on other sites More sharing options...
Members Jisatsu Posted July 24, 2009 Members Share Posted July 24, 2009 it says 8ohms for left and right. Don't over think this. If it was 4ohms stereo it would say "8ohms mono 4ohms left 4ohms right" Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 that's 8ohms each side in stereo. it's tough to see, but look above the jacks on that image (in the shadows), it says 4 ohms mono left jack, 16ohms mono right jack. i checked out this wiring diagram. and the wiring in my cab doesn't match any of the upper diagrams (mono parallel, mono series, mono series/parallel). I don't want to over think this either; but I bought the cab used and I am not sure if it's been tinkered with. Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 what it looks like from my picture is this: both top speakers are accepting a single (+) and (-) from the jacks, and then the top two speakers receive a single (+) and (-) from the bottom speakers. My bottom 2 speakers don't receive anything from the jacks. I can't find any diagram on that site I linked that shows this set up... Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 http://colomar.com/Shavano/4x12wiring.html is the site i am referencing Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 THAT diagram looks to match up with my wiring...Can anyone confirm? So it looks like it's Series/Parallel. Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 any thoughts? it seems like someone could easily help me out here by glancing at the picture. i am really interested in doing the work here and figuring this out on my own, but from all the searching on the internet, i just can't find an image to match my set up...I think the stereo option of this cab is throwing things off. Link to comment Share on other sites More sharing options...
Members Jisatsu Posted July 24, 2009 Members Share Posted July 24, 2009 Bro seriously, it's 8ohms stereo and mono. Just trust me on that one. The only way it would be 4ohms is if you had a seperate 8ohms cab you were going to run at the same time with your amp. Seriously someone else back me up on this :/ Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 i trust you, but you do see the mono information in the shadows above the jacks in that picture? i think the least risky thing is to run the cab in stereo at 8ohms like you're saying. Link to comment Share on other sites More sharing options...
Members Jack Tone Posted July 24, 2009 Members Share Posted July 24, 2009 Maybe this will help: http://www.krampe-family.de/html/cabs.htm Link to comment Share on other sites More sharing options...
Members Syyle Posted July 24, 2009 Author Members Share Posted July 24, 2009 hell yeah, thanks man, that clears it all up. so the literature on the back jack plate is correct. doesn't look like anything has been changed from stock. Link to comment Share on other sites More sharing options...
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