Semi-parametric 4-band equalizer with 11 selectable frequencies, +/-12dB range, selectable dual Q peak/shelf on HF and LF bands, dual Q for both mid bands, high pass and low pass shelving filters, and a coarse 5-dB step +/-15dB input gain control. The 444x uses the AM-10 discrete opamp, a close cousin of the infamous JE-990, to produce an impedance balanced output capable of driving +27dB into a 600-Ohm load at less than 0.01% distortion.
 
These were removed from a famous film mixing console in New York City and a limited number are bring offered for sale. Each module has had electrolytic capacitors replaced, has been tested and includes a mating edge connector, schematic, and other useful drawings.
 
Offered as individual modules or two modules mounted in a custom heavy-duty 2RU aluminum chassis with regulated linear power supply and gold Neutrik XLR connectors. Factory set input voltage of 120 or 240 VAC, 50/60Hz.
 
NOTE: Individual modules require +/-28V DC, 65mA (max) power, not included.