ASP Series

In 1978 Zapco introduced the world to audiophile signal processing with the iconic Zapco PEQ 18 band equalizer. It was the first high output processor for the car. With high grade “mil-spec” slide pots and internal components, the SEQ showed the industry what in-car sound processing should sound like. The SEQ was followed by a series of audiophile quality processors including the first parametric car EQ, innovative electronic crossovers, a 30 band mono EQ, an advanced noise gate, and even an outboard D/A converter that surpassed most home D/A converters.
Now, when most head units and amps have processing built in, Zapco continue to offer audiophile quality outboard processing.
For many people“OK” sound is just fine as long as it’s quick, and easy, but Zapco makes processors for those who want something better.
We make processors for those who think that the live musical experience is worth the extra effort. We make processors for those who think that the sound is what matters most. If you want to sit in your car and feel like you are right there, in the audience, at the concert hall...
Zapco makes processors for you.

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Original price $694.44 - Original price $694.44Original price$694.44$694.44 - $694.44Current price $694.44| /
Zapco - ASP-Q2 - 7-Band Parametric EQ 9.5V Line Driver
Zapco2+ in stockThe Zapco ASP-Q2 combines professional-grade equalization with a powerful 9.5V line driver, allowing precise system tuning and strong, noise-free s...
View full detailsOriginal price $694.44 - Original price $694.44Original price$694.44$694.44 - $694.44Current price $694.44| / -
Original price $277.78 - Original price $277.78Original price$277.78$277.78 - $277.78Current price $277.78| /
Zapco - ASP-L2T - 2-Ch. High-End Transformer Adapter
Zapco2+ in stockASP-L2T – 2-Channel Line Noise Filter Sold by Ultimate Marketing The ASP-L2T is designed to eliminate unwanted noise within your audio signal path,...
View full detailsOriginal price $277.78 - Original price $277.78Original price$277.78$277.78 - $277.78Current price $277.78| / -
Original price $83.33 - Original price $83.33Original price$83.33$83.33 - $83.33Current price $83.33| /
Zapco - ASP-OEB - 2-Ch. 9.5V OEM Adaptor
Zapco2+ in stockThe Zapco ASP-OEB is a high-end 2-channel OEM adapter designed to deliver pure, noise-free signal conversion from factory systems to aftermarket am...
View full detailsOriginal price $83.33 - Original price $83.33Original price$83.33$83.33 - $83.33Current price $83.33| / -
Original price $180.56 - Original price $180.56Original price$180.56$180.56 - $180.56Current price $180.56| /
Zapco - ASP-OE2 - 2-Ch. 9.5V OEM Adaptor, Bass Recovery
ZapcoOut of stockASP-OE2 – 2-Channel OEM Speaker Level to Preamp with Bass Recovery Sold by Ultimate Marketing The ASP-OE2 allows you to seamlessly integrate afterm...
View full detailsOriginal price $180.56 - Original price $180.56Original price$180.56$180.56 - $180.56Current price $180.56| /Sold out -
Original price $513.89 - Original price $513.89Original price$513.89$513.89 - $513.89Current price $513.89| /
Zapco - ASP-OE8 - 8-Ch. 9.5V OEM Adaptor
ZapcoOut of stockThe Zapco ASP-OE8 is an audiophile-grade, 8-channel OEM integration solution that bridges factory systems with aftermarket amplifiers and DSPs. Del...
View full detailsOriginal price $513.89 - Original price $513.89Original price$513.89$513.89 - $513.89Current price $513.89| /Sold out -
Original price $277.78 - Original price $277.78Original price$277.78$277.78 - $277.78Current price $277.78| /
Zapco - ASP-L2 BT - 2-Ch. 9.5V Line Driver, Bluetooth Streaming
ZapcoOut of stockThe Zapco ASP-L2 BT is a refined solution for modern audio installations, combining high-voltage 9.5V line driving with Bluetooth streaming capabil...
View full detailsOriginal price $277.78 - Original price $277.78Original price$277.78$277.78 - $277.78Current price $277.78| /Sold out -
Original price $416.67 - Original price $416.67Original price$416.67$416.67 - $416.67Current price $416.67| /
Zapco - ASP-L6 - 6-Ch. 9.5V Line Driver
ZapcoOut of stockThe ASP-L6 is a high-fidelity 6-channel line driver that boosts low-level signals to 9.5 V RMS for cleaner, quieter feeds into amplifiers. It suppo...
View full detailsOriginal price $416.67 - Original price $416.67Original price$416.67$416.67 - $416.67Current price $416.67| /Sold out -
Original price $277.78 - Original price $277.78Original price$277.78$277.78 - $277.78Current price $277.78| /
Zapco - ASP-X2 - 2-Way Electronic Crossover 9.5V Line Driver
ZapcoOut of stockThe Zapco ASP-X2 is designed for clean signal management in two-way systems. It combines precise electronic crossover functionality with a high-vol...
View full detailsOriginal price $277.78 - Original price $277.78Original price$277.78$277.78 - $277.78Current price $277.78| /Sold out -
Original price $555.56 - Original price $555.56Original price$555.56$555.56 - $555.56Current price $555.56| /
Zapco - ASP-X4 - 2/3/4-Way Electronic Crossover 9.5V Line Driver
ZapcoOnly 2 left!The Zapco ASP-X4 is a flexible, high-performance crossover module designed for sophisticated audio systems. With modes for 2-, 3-, or 4-way configu...
View full detailsOriginal price $555.56 - Original price $555.56Original price$555.56$555.56 - $555.56Current price $555.56| /