The CLONES guiding principles: Musical passion above all, striking sonic performance in every genre, superb value, and timeless design. Bring vinyl back to your life... Internally adjustable with DIP switches, the PA1 phono amplifier can bring new life to most any MM or MC cartridge. The external power supply is carefully stabilized, eliminating cross-talk effects. Musical, detailed and dynamic. Clones offers an amazing 5 year limited warranty on their products.