Members petejt Posted September 21, 2008 Members Share Posted September 21, 2008 I need to get this stuff clear before I blow anything up....... I have a standard Marshall 1960A 4x12 speaker cab. It has a jackplate with two inputs. It can take two 8 ohm inputs (stereo), or one 16 ohm input (mono). There are two pairs of speaker wires coming from the jackplate. I have two 12", 8 ohm 200 watt speakers. How can I wire these to the jackplate, and what input (eg. 1x16ohms) will it safely accept? Link to comment Share on other sites More sharing options...
Members petejt Posted September 22, 2008 Author Members Share Posted September 22, 2008 I'm really not sure what to do. Link to comment Share on other sites More sharing options...
Members petejt Posted September 23, 2008 Author Members Share Posted September 23, 2008 Excuse teh n:o:obery but I really need help with this please. Link to comment Share on other sites More sharing options...
Members tommythelurker Posted September 23, 2008 Members Share Posted September 23, 2008 You're putting 2 speakers in a 4x12? Connect each pair of wires to one speaker. Link to comment Share on other sites More sharing options...
Members petejt Posted September 23, 2008 Author Members Share Posted September 23, 2008 You're putting 2 speakers in a 4x12?Connect each pair of wires to one speaker. Yup. The cab is becoming a semi-Leslie cabinet. So I had to remove the top two speakers to make room for the speaker driver and rotating treble horn. So effectively the cab becomes a 2x12. You could say I'm asking how to wire up a 2x12 using the jackplate from a 4x12 Marshall 1960A cab. So, you're saying that it'd be perfectly fine if I wire one jack to one speaker, and wire the other jack to the other speaker? And then just run two speaker cables from the amp (two 8 ohms output) to the cab? And then set the switch on the jackplate to 8 ohms stereo? That simple? I hope so. Link to comment Share on other sites More sharing options...
Members tommythelurker Posted September 23, 2008 Members Share Posted September 23, 2008 Even simpler. Using the original wiring the mono/stereo switch and jacks will work the same way. Mono will still be 4/16 ohms depending on the jack, and stereo will still be 8 ohms per side. Stock, the cab is setup so that each side is a pair of speakers, with each pair being 8 ohms total. All you're doing is replacing each 8 ohm pair of speakers with one 8 ohm speaker. Impedance-wise it's the same thing. So you don't need to run two cables from the amp, just run one and use either 4 or 16 ohms on the amp/cab just like you normally would. Link to comment Share on other sites More sharing options...
Members petejt Posted September 23, 2008 Author Members Share Posted September 23, 2008 Even simpler. Using the original wiring the mono/stereo switch and jacks will work the same way. Mono will still be 4/16 ohms depending on the jack, and stereo will still be 8 ohms per side. Stock, the cab is setup so that each side is a pair of speakers, with each pair being 8 ohms total. All you're doing is replacing each 8 ohm pair of speakers with one 8 ohm speaker. Impedance-wise it's the same thing. So you don't need to run two cables from the amp, just run one and use either 4 or 16 ohms on the amp/cab just like you normally would. Great! Thank you so much! Now to buy the bolts to screw the speakers in place....... Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.