The EQP501 is a passive equalizer based on the classic PULTEC EQP 1A, adapted to the '500' format of API*.
It is made of an all passive section followed by a gain make up stage based on a Discrete Op-Amp (DOA).
The EQP501 retains all the controls from the original but adds some new frequencies to the low and high sections.
Just install it in your API* compatible LunchboxTM rack and start recording.
Highlights
All passive, faithfull to the original,
Separate low end cut and boost allows achieving the "Low End Trick",
Coil based high end boost giving that famous airy, transparent high end,
Low frequency cut and boost: 15, 20, 30, 45, 60 and 100 cycles per second,
High frequency boost: 2.5, 3, 3.5, 4, 5, 6, 7, 8, 10, 12, 15 and 18 kilocycles per second,
High frequency cut: 10, 15 and 20 kilocycles per second,
Discrete Op-Amp, class A make-up gain,
Carnhill inductor,
Available assembled or as a full kit (everything included).
