Zapco Analog Signal Processors

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. With balanced inputs, high voltage outputs, and military grade internal components, the PEQ was the first true Sound Quality EQ for the car. The PEQ was followed a few years later by the Zapco PX. The PX was the first parametric EQ for the car. With high voltage inputs and outputs, an 18dB electronic crossover, 4 parametric EQ bands, and a noise free remote power supply, the PX 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. Then Zapco led the pack into digital processing in 2004 with the famous DSP-6 and the DC line of amplifiers.

Now Zapco brings you the new family of Zapco analog processors. Zapco processors are designed and built for the audiophile ear. These processors use top end Elna Silmic ll capacitors throughout the signal path. The op amps are the Analog Devices op275s, and we went straight to factory who builds the best precision potentiometers around, and had our own custom pots built for these new processors. Each of these processors is designed to do one job and to do it right. There is an audiophile EQ for the dash. There are 2 new tube preamplifiers, 2 electronic crossovers, 2 signal line drivers, and OEM line adapters for upgrading factory stereos. These processors are all designed for maximum versatility to give you exactly what you need to get the most from your sound system. And they have quality touches to go a step beyond. The ASP-Q2 in-dash EQ has a copper chassis for maximum noise rejection. The larger units use a remote power supply to keep the high voltages out of the main chassis, and for maximum reliability, the under seat and trunk mount units have a plexi cover plate to keep dust and dirt out of the units after you’ve made your settings.