![]() ![]() Most amplifiers on the planet can run an 8-ohm load, so this is desirable. A 4x12 cab is typically 16 ohms, so when you connect two of them together in parallel, the total load becomes 8 ohms. 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. Red is positive (+) and black is negative (-).įig. 1 shows how to connect four 16-ohm speakers in a series-parallel configuration. The conventional wiring is called series-parallel, and the speakers themselves are each 16 ohms. I am here to offer my guidance, grasshopper.Ī typical 4x12 cabinet is rated at 16 ohms. Maybe you need some help with wiring said cabs. Maybe you want to build a wall of cabs yourself and take the upgrade route like I did. I came to that outrageous number of 4x12 cabs because I bought them used or empty, and then filled them with my own speakers and wiring. That said, I became so infatuated with how nicely the standard-sized 30"x30" boxes stack together to build a wall, I grabbed anything I could get my hands on. (I’m currently down to just two.) As Steven Fryette pointed out in his recent Speaker Geeks article, the size and shape of the cabinet has a great effect on a speaker’s performance. My answer is always a very confident “yes,” usually followed by some quip about how I actually need more. It’s awesome! Once you start playing through multiple cabs, odds are good someone will ask you if you need “all that equipment,” smiling smugly like it was the first time you’d ever heard that before. Perhaps you’ve had the opportunity to play through three 100-watt amps driving three 4x12s at the same time. If you’re like me, chances are you’ve had the opportunity to play through a 100-watt tube amp and a 4x12 cabinet. ![]()
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