Discrete 500 Series 3 band EQ with an additional filter band and several new frequencies Based on API's original 550 from the late '60s, the API 550b is a continuation of the EQ that played a major... View more
Discrete 500 Series 3 band EQ with API fully discrete circuit design Few equalizers enjoy the respect and admiration of the coveted API 550A. Designed by the now-legendary Saul Walker in the late... View more
The Electrodyne 511 is a classic two-band discrete transistor reciprocal active inductor equalizer using (1969 / 1970) design technology. The custom inductors and output transformer are made by... View more
Analog mono equalizer based on the LANG PEQ-2 Program EQ with optical compression detection, all tube-based amplification stage, and transformer balanced input & output Finally, after over 6 decades,... View more
Multi-purpose tone enhancement API 500 series module with instrument pre, four band EQ, compressor, and tape saturation circuits. Vertical faceplate One of the newer members of the Empirical Labs... View more
Multi-purpose tone enhancement API 500 series module with instrument pre, four band EQ, compressor and tape saturation circuits. Horizontal faceplate One of the newer members of the Empirical Labs... View more
Pultec style tube equalizer with premium grade input and output CineMag USA Transformers Not only does the look and feel of the EQP-WA match the classic Pultec units, but the sonic quality has been... View more
Harrison 32EQ - classic Harrison console specs in a single '500' series rack space This 500 series module also includes the parametric, second order high-pass and low-pass filters made famous in the... View more
The LILPEQr is a two-band program EQ designed to work in standard "500" racks, designed by Eisen Audio for Purple Audio. The LILPEQr is our take on the classic program (aka final mix) equalizer. It... View more
The EQ5P is a DISCRETE Parametric Equalizer with some very unique features. Notice that the panel has no Q control. The filter Q control is in relation to the Boost and Cut control, and uses a... View more
Discrete high and low-pass sweep filters in the compact API 200 Series format The API 215L is a unique passive, sweepable filter, designed specifically to contour the sound to preserve the natural... View more
The JDK Audio V14 is an extremely high quality,; single channel 4-Band Equalizer designed for the popular API VPR500 Rack format. The eq features continuously variable adjustment of frequency and... View more
Single channel discrete filter bank for the 500 Series with API 2520 and 2510 Op-Amps The 565 Filter Bank module has circuits that are true to the musical filters of the famed 215 module found in... View more
4-band EQ unit based on the eq section in the classical 1081 The class-AB equalizer circuit used in the EQ-81 MKII is similar to the eq section in the classic 1081 module, without the high and low... View more
Vintage Pultec style program equalizer Bring the Lauded Studio Classic Home. The most renowned studio EQ ever known is now within your reach! With the LiNTEC, you?ll sculpt your tracks hands-on via... View more
One channel 1073 vintage style 3-band equalizer The class-A circuit used in the EQ-73 MKII is similar to the eq section in the classical 1073 module, without the high pass filter. Additional... View more
