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Price : 31000.- บาท

Product Description

ASP-X4   2/3/4-Way Electronic Crossover

Analog Signal Processors

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.

The legendary Zapco Analog Signal Processors are back

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.
But we know that vinyl records continue to be preferred by audiophiles over CDs and other digital media for one reason. The purity of the sound. Many aficionados of great sound prefer analog processing over digital for the same reason. Analog reproduction of music continues to have a warmth and sonic purity that is lost in the digital realm.
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 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-Q1 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.
So; If what matters to you is music…if sound is not just the main concern but the only concern...
If you want your system to put you front row center…
Zapco makes a signal processor just for you.


Most amplifiers today have a crossover built in, but the built-in crossovers are designed for convenience not sound.  An audiophile level crossover would be too big and too expensive to build into an amplifier. With a built-in crossover you are trading sound quality for convenience. The Zapco electronic crossovers are designed for people who don’t want to make that trade. Zapco crossovers are designed to provide the very best possible sound quality, and the versatility needed for the most advanced sound systems.
The Zapco ASP-X4 is definitely the “Mac Daddy” of Analog Electronic Crossovers.  This unit was designed originally to compliment our new LX models of the Zapco Z-Series amplifiers. The LX are no-compromise, no holds barred, sound quality competition amplifiers and have no preamp functions other than input sensitivity. It takes a special crossover to meet the standards of an amp like the LX Series, and the ASP-X4 has just what it takes, and then some.
To begin, the very same high end audio grade Elna Silmic ll capacitors and OP275 op-amps used in the LX amps are also used in the ASP-X4 (as well as in the other Zapco competition grade processors).  Another important factor in the sound quality is the quality of the control pots. They need to be clean, precise, and must not add distortion. Zapco went out the the maker of the finest pots around and had out own custom high precision pots built for our competition grade processors. Then we built in all that Zapco versatility. With a high pass, a low pass and 2 band pass filter systems you can run a 3-way system or a 4-way system. You can even have an active 3-way system and a full range rear fill. And with the dual input system you can fade between the main 3-way system and the rear fill. For that extra little touch… the X4 is designed to match the Z-series chassis. Since we assume this crossover will likely be displayed with the amps, we have illuminated the clear plastic protective cover for that extra touch in the installation

* Extremely versatile for 2-way, 3-way, 4-way, or 3-way plus full range to fit the most advanced sound system

* Two band pass outputs

* Dual inputs allow fading between the main 3-way system and the rear fill

* Clipping indicators for each output

* Switchable 12/24dB sub crossover

* Remote power supply

* Selectable ground reference for noise elimination

* 9.5 Volt RMS line driver



  • * THD < 0.01%THD

  • * Signal to Noise Ratio > 110dB

  • * Stereo Separation 90dB

  • * Crossover Slopes 24dB

  • * Preamp Output 9.5V RMS / 14V Peak

  • * Dimensions in mm: 190(W) x 39(H) x 214(L) Overall: 190(W) x 39(H) x 245(L)