API 550A Discrete 500-Series 3-Band Equalizer Direct Boxes then tweak your tone with

then tweak your tone with three band control

no tantalum or electrolytic interstage or output coupling capacitors

Retro Instruments take on the classic Pultec EQP-1A3

I have used just about every microphone  that is known to man

It is advisable to use a high quality studio-grade power amplifier

API 550A Discrete 500-Series 3-Band Equalizer Direct Boxes then tweak your tone withForty years later, the 550A remains the standard against which other EQs are measured, and it has played a major role in the recording industry for decades. Still copied but never duplicated, the 550A became API's standard channel module EQ when the company began manufacturing consoles in 1971. With virtually all existing units spoken for, popular demand for this EQ resulted in API finally resuming production in 2004. The 550A provides reciprocal