Analog Signal Processors
Equalizers, Electronic Crossovers, Line Drivers and OEM Adaptors

Zapco analog processors are legendary for both sound quality and reliability. Zapco processing started in 1978 with the famous PEQ, 9 band, dual channel control, preamp EQ. The PEQ was followed a few years later by the Zapco PX, the first parametric EQ for the car became the competition EQ for the 1980s. The 90’s brought the Zapco SX series of EQs with Zapco parametric equalization, high voltage outputs, fader, and bass to highs balance control. The SX became the new top dog of the competition circuit.

Since 2015 Zapco brings you the new family of Zapco analog processors, designed
and built for the audiophile ear.