I usually use one amp as my main tone generator (i.e a Marshall combo with an FX loop) I used one amp, a power amp and an extension speaker or 2 separate amplifiers. In other words, you have the equivalent of two mono cabinets being housed in a single box. James uses a Mesa Boogie High Gain Amp Switcher. This particular design uses the "X" pattern wiring for grounding out each unused signal while also providing you with the option of combining both "A" and "B". What would be the result? an 8 ohm cab requires 2 separate 8 ohm heads. To do that you need a device that will put a load on the unused amp like the Headbone or Axess unit. Lehle makes a few different choices for amp switching. If you are running an amp with two power amp sections, you do not need to worry about matching the Ω (ohms) in multi-speaker setups, the amps can handle it. In some cases, internal amp wiring includes preamp pass-through functionality, which allows you to connect multiple amps together. Multiple special 6 ultra amps can be linked by connecting the line out jack to the effects return of the second amplifier. The most obvious application for using a box to route your signal into two different amps is when you want to use one amp for your clean sound and the other for overdriven tones. will this increase the output power of the system? There are no additional controls on the switcher. Or use as an A/B box with "C" for use as a line out to a tuner. He boosts his leads with a Klon. Power across the 4 ohm subwoofer: V x V / R = (28.28)*(28.28) / 4 = 800 / 4 = 400W in bridged mode. I also have a Radial Bigshot ABY and even though I haven't used it very often, it never seemed to have any issue. Morley A/B box will let you connect one guitar to two heads. For a better experience, please enable JavaScript in your browser before proceeding. With a switch that meets all the above conditions, you can safely connect two amplifiers (or two receivers, or an amp and a receiver) to one set of speakers. A lehle little dual will get you there no problem. Used the framptone (from robert keeley) A/B box for a few years now. Say you have a 4x12 stereo cab with two jacks on the back. Great piece of kit. .works like a champ. Plugging a second head into the second jack means the output signal from BOTH heads will be present at both jacks, and you simply cannot co-mingle the output signals from two amps/heads without cooking the electronics. The only way to run two amps into one cab is if each amp is run independently to it's own dedicated speaker(s) in the cab, and the speakers are NOT connected to each other, except in the case of running two sides of a 4x12, where one amp gets two speakers and the other amp gets the other two. I only used it a few times. JavaScript is disabled. Just to clarify.... the two loop master pedals above will not let you run two amps into one cab. He uses two Mesa Triaxis (one set for Green channel clean and the other set for IIC+ crunch). custom audio amp switcher will do it for 1500 bucks. Tube replacement may become necessary after one to three years, depending on enviroment, usage and care. In that case, you can connect the pass-through outputs on your first amp to the preamp inputs on your second amplifier, and so on. It depends on exactly what you have and what you want to do. James uses separate cabs for the power amp and VH4. Before the vh4 came into the picture he ran 2 triaxis set for his heavy tones and they were mixed in the boogie amp switcher. Connect the other end of … The Gear Page is the leading online community and marketplace for guitars, amps, pedals, effects and associated gear. Can two heads just plug into each jack. Several special 6 ultras can be linked in this manner, with the first amp's preamp serving as the master preamp for all additional amplifiers." The Little Dual allows me to use each amp independently, while giving me the option to play through both amps … Running a feed out of the stereo chorus to either a power amp to an extension speaker or amp B-make sure you blend the volumes. .A---B--- or A&B. Run your guitar into two amps at the same time or A/B between them. Find one used under $700 on ebay, or on here from time to time. A single output goes to your power amp. . Parallel is two (or more) side-by-side connections. He does this so they don't have to switch channels on on Triaxis which will cause all sorts of output phasing issues which are a bitch. . Put this idea to bed until you've done lots of research.....too lengthy to explain here but until you have a thorough understanding of it....Don't!!! The combo is an Egnater Renegade and the head could be a Rebel 30 or another Renegade. Run speaker wire in exactly the same way from the back of the second amplifier into input B. Now I'd like to get a low latency (10-25ms range) way to connect the two amplifiers together. I use the headbone and love it. Matching - When connecting speakers to an amplifier and you have only a single speaker, you just match that single speaker's impedance to the amplifier, and you are done. Them in parallel channel clean and the head could be a Rebel 30 or another.! 'D like to get a low latency ( 10-25ms range ) way connect... Jack to the effects return of the second amplifier, you have and what you..... A/B between them controlled via 1/4 how to connect two amp heads together cables to turn each loop on or.. Become necessary after one to the effects return of the picture with `` C '' for use as an box. 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