The BYOC Amp Selector and Stereo FX Router was designed to allow you to use two amps, in amultitude of ways, both safely and quietly. Its first function is as a pop-free A/B/Y box so that you canswitch between two different amps, or play through two amps at the same time. Its second function is asstereo FX router. Its dual input allows you to send the left and right signals from your stereo FX units totwo separate amps, so that you can have a true stereo rig without any ground loop hum and without therisk of electrical shock. You can also use it to select between two different guitar amp combos. The BYOC Amp Selector & Stereo FX Router was also designed to take the confusion out oftransformer isolated A/B/Y and router boxes. Your amp, your guitar, your cables, and all your effects, allshare the same ground. When you add a second amplifier to the mix, the ground of that amp sharesground with all your other gear. Sometimes, especially if you have an older vintage amp with a two prongpower cord, one amp will be grounded correctly, and the other amp will be grounded to the "hot" wire ofthe wall socket. Sometimes this can cause a nasty hum. And if you touch the two grounds at the sametime, you'll get shocked. Sometimes, it has nothing to do with your amplifiers or gear. Sometimes youhave to play in dive bars with very old and very shotty wiring. Transformer isolated A/B/Y and router boxesare useful because they allow you to use two amplifiers safely and quietly. But most A/B/Y boxes are verymisleading about what they do. Most only have transformer isolation on one of the outputs. Which isperfectly fine. You only need to isolate the ground of one of the amps. But where it gets confusing is, youdon't know which of the outputs has the isolated ground. And what's misleading about most other A/B/Yboxes with transformer isolation is that they make you think you still have all the benefits of transformerisolation when you use the "ground lift" switch. They tell you to turn the "ground lift" switch on if you aregetting a lot of hum. But what they don't tell youis that when you turn the "ground lift" switch on, you arereally connecting the grounds of the two amps youare trying to isolate. This eliminates the entire purposeof having a transformer isolated output and essentiallyturns your expensive amp selector into nothingmore than a pop-free router. The BYOC Amp Selector & Stereo FX Router has output transformers on both the outputs. And it hasswitches to allow you to turn each of them on and off independent of one another. As we've alreadystated, you only need to isolate the ground of one of the amps. And typically, only using one of thetransformers provides the least amount of hum. But how do you know which output has the transformer? And how do you know which amp should have the isolated ground? With the BYOC Amp Selector &Stereo FX Router, it's easy to figure out and adapt to any situation, whether it be an unfamiliar club or bar,the studio, or just playing in your bedroom. Unlike many of the passive amp selectors, the BYOC Amp Selector & Stereo FX Router features anactive circuit that uses a standard 9vdc adapter, so your signal stays strong and your tone doesn't getdulled. It has two footswitches: one selects between channel A and channel B; and the other turns bothchannels on at the same time. It also features the highest quality nylon PC mounted jacks from Neutrik. The nylon jacks prevent the ground of the guitar cables from connecting via the enclosure, and the factthat they are PC mounted makes them very easy to solder and impossible to wire incorrectly. It alsofeatures the same blue 3PDT mechanical switch that has become the standard in boutique effects. Theseswitches are rugged, easily replaced if you ever need to repair your amp selector, and unlike a lot of otherfootswitches used in amp selectors, it switches channels when you press on it, not when you release it. This is in addition to the Dual Output Transformers, each with independent ground isolation on/offswitches. And it's only half the size of it's closest competitors (and less than half the price). Kit comesstandard with red and green status LEDs.We are an authorized BYOC Dealer.Visit our shop:www.geargasstore.comInternational Buyers – Please Note:•Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.•Please check with your country’s customs office to determine what these additional costs will be prior to looking/buying.•These charges are normally collected by the delivering freight (shipping) company or when you pick the item up – do not confuse them for additional shipping charges.•We do not mark merchandise values below value or mark items as ‘gifts’ - US and International government regulations prohibit such behavior. _gsrx_vers_444 (GS 6.2 (444))