Pultec MEQ500 500 Series Equalizer 61 Key Cases & Bags This is achieved by using

This is achieved by using revolutionary flat-wire voice coils and a patented Varimotion two-layer diaphragm

Two different models: the lighter

All-valve tone control circuit

in the box

Pultec MEQ500 500 Series Equalizer 61 Key Cases & Bags This is achieved by usingPulse Techniques recently introduced a 500 series version (EQP 500X) of our popular 19 rack mount solid state line amp program equalizers (EQP 1A3 SS & EQP 1S3 SS) equalizers. Based on the venerable API 2520 op amp followed by a high quality Triad output transformer, these are preferred by some engineers to the vacuum tube models. Before bringing the MEQ 5 midrange equalizer into the 500 series family, we discussed the project with legendary producer