Marshall 4x12 Cabinet Wiring Diagram

The most common request i get is for 4 speakers that are 12 inch in diameter 4 x 12 however this solution pertains to 4 10 s 4 15 s or any mix of sizes.

Marshall 4x12 cabinet wiring diagram. 4 x 8 ohm speaker 8 ohm load. 4 x 16 ohm speaker 16 ohm load back to guitar tech celestion unit 111 claydon business park great blakenham ipswich ip6 0nl united kingdom. July 11 2009 06 04 53 pm by bnwitt. Does anyone have a wiring diagram for a mono stereo jack switch assembly for a 4x12 cabinet.

To be honest i hadn t given that one any thought in a couple of decades and it made me think. When stereo mode is selected the cabinet is split into two 8 ohm halves for use with a stereo power amp. I ve got a customer who wants to convert and existing cabinet to this function. The green wires in the diagram are the same as the blue wires in scott s photo it just looks may 30 i have two marshall vs model 4x12 cabinets and use a marshall and jmp1 setup.

Many people have asked how to wire up a 4 speaker cabinet that can have an extension speaker cabinet usually another 2 or 4 speaker cabinet plugged into it when desired. Marshall 4x12 wiring in series parallel. Back in the day when guys ran full marshall stacks the cabs were 16 ohms since you had to parallel 2 cabs and get an 8 ohm load. Marshall 4x12 wiring in series parallel four 16 ohm speakers 16 ohms total load four 8 ohm speakers 8 ohms total load red wires are positive black wires are negative position speaker terminals in towards the center of the cab.

Wiring diagrams and their effect on cabinet impedance are displayed below. 4x12 mono stereo switching facilities 1960a 1960b 1960av 1960bv. A 4x12 cab is typically 16 ohms so when you connect two of them this is still series parallel wiring so following this diagram will still work. A 4x12 cab is typically 16 ohms so when you connect two of them together in parallel the total load becomes 8 ohms.

Most amplifiers on the planet can run an 8 ohm load so this is desirable. I like the idea of running my marshalls at 8 ohm so i buy quads of 8 ohm speakers and wire them up series parallel to get an 8 ohm load with one 4x12 cab. To ensure maximum flexibility four of our 4 x 12 cabinets boast a mono stereo switching system on the back. The diagram below shows the wiring of a marshall 2x12 speaker cab having a.

There are two ways you can wire a 4x12 or 4x10 for that matter the main one is series parallel. The 4x12 cabinet is sometimes referred to as a half stack and players routinely connect two of them to a single amp to create a full stack.