Morley ABY Pro Selector Routing & Switching Device Routing & Switching Device Based off the Industry Standard Morley ABY Switcher, the ABY Pro is equipped with all the necessary features to combat Ground Loop Hum, Phasing and signal degradation you may encounter while using multiple amplifiers. Morley's engineers spared no expense when designing the Pro Selectors, after all your career depends on it and so does ours! - Route 1 Input to 2 Outputs. Designed Specifically for Multiple Amp use - 1:1 Isolation Transformer that Eliminates Ground Loop Hum and Enhances your Signal - Reverse Polarity Switch to combat Phasing Issues - Silent Switching to prevent "Pops" and noise - Ground Lift with High Frequency Filter - Higher Enclosure for Easy Access on Crowded Pedalboards - Handy LEDs let you know which channels are active - Built like a Tank SPECIFICATIONS: - CAUTION: Do not use on powered speaker lines. You will damage the ABY, the amp and speakers - Designed to be used one-way as an Amp Selector - Standard 9V DC Power Operation - Pedal Dimensions: 5" x 3.38" x 2.75" (L x W x H) - Made in the USA