Two 8 Ohm Speaker Cabinets

To push more air several speakers always of equal impedance can be wired together in a cabinet.

Two 8 ohm speaker cabinets.

Connect negative side of speaker a to positive side of speaker b. 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. To give you an example of how confusing this is imagine 2 8 ohm speakers. For instance two 8 ohm cabinets wired in parallel will have a total impedance of 4 ohms.

One 8ω cabinet plugged into another 8ω cabinet then into the amp 16ω. Most amplifiers on the planet can run an 8 ohm load so this is desirable. When playing through multiple speaker cabinets one must remember that this will change the impedance that your amp must compensate for. Ohms most speakers have an impedance of either 4 8 or 16 ohms ω.

It s best to match like cabinets. Or two 8. Two 4 ohm cabinets would have an impedance of 2 ohms. A 4x12 cab is typically 16 ohms so when you connect two of them together in parallel the total load becomes 8 ohms.

Wiring configuration for 4 speakers in parallel. A parallel wiring turns those 2 8 ohm speakers into a system of 4 ohms total. Two 4 ohm speakers 8 ohm load two 8 ohm speakers 16 ohm load. Connect positive side of speaker a to positive side of speaker c.

To simplify parallel wiring pretend your speaker system has a total of 2 speakers with 16 ohms each. Four 8 ohm speakers 2 ohm load four 16 ohm speakers 4 ohm load four 32 ohm speakers 8 ohm load. Two 8ω cabinets both plugged into an amp 4ω load. The most basic cabinet configuration is a single speaker.

So if you had 2 16ω boxes then you would have a total of 8ω. Wiring configuration for 4 speakers in series parallel. The cabinet impedance depends on how the speakers are wired and may differ from the impedance of the speakers. Running cabinets in this fashion from one power amp will give you a 2.

That s why this is so important. A parallel wiring of 4 16 ohm speakers has a system of 4 ohms total as well. If your amp says it can put out a certain number of watts at 4 ohms you can only. Match impedances ohms all speakers in the same box should have the same impedance.

To wire a 4x12 cabinet in series parallel where four 8 ohm speakers are wired in series parallel equaling a total load of 8 ohms as in the illustration below.