API 5500 Stereo/Dual Mono 550 EQs with Range Switch Mid Field Ribbon Mic Frequency response: 78 - 20

Frequency response: 78 - 20 000 Hz +/-3dB

Extra filtering on transformer bridge diode

allowing a range of tonal options from pristine clean sound to classic rich

The 1073 has been massively used in recording and live applications for decades and is still considered to be the “Holy Grail” of preamps today

Guitar and Bass amp mic (close and distant)

API 5500 Stereo/Dual Mono 550 EQs with Range Switch Mid Field Ribbon Mic Frequency response: 78 - 20The beginnings of the 5500 circuit can be traced back to the original 550 equaliser designed by Saul Walker, the founder of Automated Processes Inc. The 550 was designed as a console equaliser, which uses an unbalanced input due to the architecture of the recording console. Because the ergonomics of a console dictate that the controls take up little space, sometimes the number of included functions can be limited. The 5500 is specifically designed to