This is the Demonfx GLADIATOR DOUBLE PREAMP Inspired by the Cornerstone Gladio Double Preamp The Gladiator is a preamp/overdrive with two independent channels with different voicing s for a lot of versatility. CHANNEL 1: Smooth, edgy and transparent with a comp switch to allow more versatility over the dynamic range CHANNEL 2: Hard clipped, creamy and Fat with a switch called JAZZ/ROCK to choose from mellow or brighter tones. The Gladiator is further equipped with a toggle switch to choose between the two different switching modes. ?S? which stands for ?SINGLE? and ?D? which stands for ?DOUBLE?. In Single mode you can use only one channel at a time. Very useful to switch between one sound or another in a live situation. In Double mode,you can stack these two channels to create a powerful response. Lower gain settings give you close to break up tones with a clear and immediate attack. There?s smooth soft clipping, sustain and an amp-like touch response. Up the gain a bit you can achieve some biting lead tones that rise from the mix. Flip the ?comp? switch if you?re seeking lower headroom and a smoother ride. The ?jazz/rock? switch changes the mid-range voice, with the rock position particularly excelling for American-voiced slide that verges on fuzz. Switch to double mode and stack both drives to transform a small combo amp that will seem much bigger than it's actual size. Specs : True-bypass switching Dual overdrive pedal. Two channel preamp pedal Channel 1 has controls for Volume, Gain and Tone and a Comp mini switch Channel 2 has controls for Volume, Gain and Tone and a Jazz / Rock switch Two switching modes Single Double Dimensions : 4,1 x 9,3 x 11,9 cm Standard 9V DC Negative Center power supply (not included) Note: Power supply not included. Please use the 9V power adapter whose polarity is negative center otherwise, the product may not work properly. Package List: 1 * Effect Pedal 1 * User Manual (English) 1 * Year warranty through our store No Duty to Canada and USA FAST 'N FREE USA Shipping (typically about 4 days via USPS Ground Advantage ) Ships from Canada (depending on stock availability, may also ship from our Niagara Falls NY. location) *Just to be clear on DUTY, (regardless of what warns buyers of ) Canada and the USA have a trade agreement in place that allows US citizens to purchase/import up to $800 dollars per purchase in to the United States from Canada with NO Duty at all, State taxes are another story, some states charge a TAX some do not, BUT NO duty.