Pulse Technology Clean Boost Pedal The PT-18 Clean Boost is a simple pedal that achieves what it's name suggests without complication - a high headroom signal boost. Boost pedals can be used to give an overall sound a boost in volume without coloring the tone, or as an extra gain stage before pedals or pre-amps which might benefit from being sent "hotter" signal than would normally be produced by guitar pickups. While the PT-18 doesn't color sound on its own, the included Low and High EQ can be used to compensate for tonal changes that may occur due to the higher signal level e.g. an overdrive becoming more bass heavy when the hotter signal causes increased distortion. The pedal is predominantly clean for most settings, but setting the gain knob at extreme levels does result in a fizzy American Tweed style sounding breakup. Cased in a rugged full metal housing, the PT-18 is a widely usable, reliable boost pedal. Compact / Miniature Case Size Advances in circuitry design and manufacture have made it possible for guitar effect pedals to be built in compact enclosures that literally fit in the palm of the hand. The mini design allows more pedals to fit on a pedal-board and helps reduce the overall weight, making them an ideal solution for the traveling guitarist. True Bypass Circuitry The compact inner circuitry is designed with a 3PDTtrue bypass switch ensuring an unaltered tone when the pedal is not engaged. A true bypass switch has the ability perform a true bypass of the internal hardware circuit of the pedal, meaning the signal goes straight from the IN to the OUT. Specifications: Full Metal Housing Controls: Gain, Volume, Bass, Treble True Bypass 3DPT Switch Power Supply: 9V DC (negative center) (not included) Working Current: 13mA Input Impedance: 1Ma? Output Impedance: 520a? Dimensions: L95mm x W45mm x H53mm (including switch) Weight: 210g 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 Chinese) 1 * Year warranty through our store No Duty to Canada and USA FAST 'N FREE USA Shipping (typically takes about 4 biz days to USA via USPS) Ships from Canada