Originally conceived for use in API consoles of the '60s and '70s, the 560 is a unique device designed to accomplish tasks that no other EQ can. Extremely fast to set and reset using accurate zero detents, the curve shaping potential of the 560 remains unmatched. With a wide range of 500 mounting options, from racks to consoles, the 560 proves an invaluable asset to all critical performance applications. Based on API's original 560 EQ, the current production 560 has improved resolution in the ±4dB area and possesses our exclusive circuitry and proprietary components, including the API 2520 OpAmp.The extraordinary headroom made possible with the 2520 offers consistent analog performance even when using radical EQ curves.