Marshall Amp Forum - View Single Post - second hand marshall cabainet wired wrong

ryan.kroemer@bigpond.com · 03-06-2008, 12:44 AM

hi have just aquired a second hand marshall box cheaply the guy that owned it changed wiring cofigeration (ohms) and box didn't work so sold to local music shop and was re-wired to correct 8 ohms as stated on back of box.

my problem is the guy that re-wired it back to original ohms is a srcew loose after all the drugs he has done in the 60' and 70' and i want to know is there is some way you can tell the cabainets total ohms just to be on the safe side.

i don't own a voltimeter so a method without using one of these would be good but i can get a hold of one and are friends with a sparky, would like to learn how to do this on my own though.
any help would be good. the box is a mg412" marshall 120watts my head is a 50watt valve head with 4,8,8,16,16ohms speaker outs on back.

03-06-2008, 12:44 AM	#1 (permalink)
ryan.kroemer@bigpond.com Junior Member Join Date: Mar 2008 Posts: 15	second hand marshall cabainet wired wrong hi have just aquired a second hand marshall box cheaply the guy that owned it changed wiring cofigeration (ohms) and box didn't work so sold to local music shop and was re-wired to correct 8 ohms as stated on back of box. my problem is the guy that re-wired it back to original ohms is a srcew loose after all the drugs he has done in the 60' and 70' and i want to know is there is some way you can tell the cabainets total ohms just to be on the safe side. i don't own a voltimeter so a method without using one of these would be good but i can get a hold of one and are friends with a sparky, would like to learn how to do this on my own though. any help would be good. the box is a mg412" marshall 120watts my head is a 50watt valve head with 4,8,8,16,16ohms speaker outs on back.