With conductive plastic elements, concentric shafts and life cycles as high as one million rotations, the high-quality potentiometers are ideally suited for amplifier and other pro audio applications. In addition to amplifiers, BI’s panel potentiometers are also being deployed in foot pedal, guitar and pre-amplifier applications. BI Technologies developed custom package sizes and configurations to meet specific XP Audio application requirements with designs based on its standard Model P260 and Model P09x panel potentiometers. The standard Model P260 devices are IP66-sealed and offered in side or top-adjust versions with PCB leads and a rotary switch option. Standard resistance ranges from 2KΩ to 1MΩ, with standard tolerance to ±10% and a switch contact resistance of 150mΩ. Maximum rotational torque is 1.5oz-in (0.5oz-in each additional gang) and minimum switch detent is 2.0oz-in. Rotational life is to 1,000,000 cycles, with an operating temperature range from -55°C to +125°C. Standard Model P09x rotary potentiometers are offered in side or top-adjust switch versions with PCB pins and up to 8 gangs. Resistance ranges from 1KΩ to 500KΩ, with standard tolerance to ±20% and a switch contact resistance of less than 100mΩ. Rotational torque ranges from 0.5 to 1.25oz-in. Rotational life is to 100,000 cycles, with an operating temperature range from -10°C to +70°C.