Getting to my guitar "starting point"--Two amps, Jcm2000 and a Randall 1086, two cabs each with a 57 and a LDC very close on the speaker, phased correctly. In professional audio applications, two amplifiers are … It is completely safe to do this. You need two cabinets. This technique allows you the ability to use two different-sounding amplifiers to create a fuller guitar tone. DO NOT attempt to use any 1/4" port labeled "speaker" or "ext" or "extension" to connect the two amps. This is the part EVERYONE gets wrong. The trick to it is that you need to put a stereo signal splitter in the chain, just before the amps. Bought a 30 watt 112 tube amp a few months ago that sounds killer. There are some cabinets that support bi-amping, which is using two amps with one cabinet. Run the cable from this to the EFFECTS RETURN on the slave amp. Active crossovers are separate components, and are connected between the sound source (a mixer or preamp), and the amplifier. The splitter will take the line in from your guitar, but provide two line outs, one to each amp. Amp (-) to Amp (-) These connections is what Physically ‘bridges’ the amps together! Quick question for ya. Your cabinet does not. The snubber also aids amplifier stability. Kurt began playing guitar at the age of nine in Kalamazoo, Michigan. Alternatively, I believe some multi effects, (such as boss GT series) have stereo out, so put the left out to one amp, and right out to the other. Hooking amps together by jumpering the second input on a dual input amp to the input of a second amp is safe, but you can get a lot of noise from ground loops, and you can get phase issues if the two amps aren't phased the same. Then a Ribbon about 6 feet away above and pointed down. Please Re-Read Step 2 . Important note: You can't connect both amps to that cab without blowing something up. The ribbon catches the rooms vibe from the figure 8 pattern. 2 - because of differences in the grounding paths for each amp, you'll probably get a ground loop hum For this reason the very best way to drive multiple amps is with a purpose designed box that will usually be active (powered) to boost the signal and have at least one transformer for complete isolation between the two or more amps. In a push-pull amp the guitar audio signals on the two phase inverter plates are 180 degrees out of phase with one another so mixing the two signals together nullifies the signal, kind of like mixing matter and antimatter. Step 3. Passive crossovers built into speakers' cabinets are used in compact music systems. What you are doing with this method is using the preamp of the master to drive the power amps and speakers of both amps. Buy a Y-cable with ¼-inch male end and two ¼-inch female ends. Note that the information presented in this article is for reference purposes only. 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