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Power @ 4Ω: 4 x 65 watts
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THD @ Rated Power < 0.5% THD
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Power @ 2Ω: 4 x 95 watts
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Power Bridged @ 4Ω: 2 x 190W RMS
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Signal to Noise Ratio > 90dB
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THD + Noise < 0.2%
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Channel Separation >60dB
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Frequency Response 15Hz to 30KHz ±1dB
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Dimensions in mm: 160(W) x 52(H) x 282(L) Overall: 160(W) x 52(H) x 320(L)
Zapco ST-4X DSP
4 Ch. Class AB Amplifier with DSP
The Studio line was designed to bring great Zapco sound quality to a line of compact chassis amplifiers.
Description
Related products
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Helix C ONE
The sound power house – extremely powerful and stunning sound quality
The C ONE is a high-end 1-channel amplifier that is able to drive even powerful subwoofers to the max. The ultra low-noise and ultra low-distortion Class A driver stage feeds a total of 32 hand-selected MOSFET power transistors, resulting in an incredible damping factor of 1,000 for relentless control of every loudspeaker.
Additionally the intelligent regulation of the power supply assures stable conditions for the output stages and therefore phenomenal output power that is almost independent of the cars battery voltage. And for even more output power, two C ONE amplifiers can be combined to one single powerhouse – thanks to the TwinPower Link.
Despite its impressive output power, the C ONE is by no means a pure subwoofer amplifier. Thanks to an extended frequency response up to 80 kHz and an architecture that has been designed down to the last detail for ultimate sound quality, the C ONE is also a perfect buddy for heavy-duty mid-woofers in audiophile system concepts.
In combination with the optionally available digital input module HDM 1, the C ONE demonstrates the perfect transition to the digital era. The HDM 1 accepts digital audio signals up to 96 kHz sampling rate via its optical input followed by cutting-edge BurrBrown D/A converters with 32 Bit resolution that transform the signals back to the analog domain. Therefore the C ONE is absolutely future-proof and perfectly prepared for the combination with our digital signal processors.
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Helix V EIGHT DSP
$7,000.00The HELIX V EIGHT DSP 8-channel amplifier with integrated 10-channel signal processor opens up new horizons for car audio enthusiasts.
Its unique “Pure Class GD” concept and cutting-edge “fixed point” Audio DSP with 64 Bit resolution ensures extraordinary sound quality and loads of power.
Furthermore, a huge feature set provides the ideal set of pre-requisites for more complex system concepts – especially if fully active configurations are going to be built on a single and compact amplifier.
Eight speaker outputs with up to 120 Watts RMS @ 2 Ohms, two processed RCA outputs for the connection of additional amplifiers, six RCA and six highlevel inputs with up to 20 V RMS input sensitivity and an optical SPDIF input make this amplifier absolutely unique in its class. The HELIX Extension Card slot (HEC) allows adding even more interfaces, like the Bluetooth® Audio Streaming module or a High Resolution Audio USB soundcard.
Thanks to Audiotec Fischer’s DSP PC-Tool, the integrated DSP can be easily configured to ones individual requirements. Despite the gigantic feature content, the V EIGHT DSP presents itself in the classic HELIX design language, a clean design with very compact dimensions allows for a quick and easy integration.
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Audison Prima AP F8.9 bit
8 CH AMPLIFIER WITH 9 CH DSP
The new AP F8.9 bit is the ideal for the most demanding integration projects, where high power is required along with the flexibility of the nine-channel DSP. The word “Forza”, meaning “Power” in Italian, well describes the 8 x 85 W RMS and 4 x 260 in bridge mode (RMS @ 4Ω), with an optimal power to size ratio.
The integrated processor is equipped with a dedicated software and 7 pre-configured presets for a Plug & Sound experience. Thanks to the built-in Audison USS technology (Universal Speakers Simulator), AP F8.9 bit can also be correctly connected to head-units with “speaker load detection” function that monitors the presence of a low-impedance load to enable the audio outputs.
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Helix D ONE
The new entry into the HELIX world! The amplifiers of the D series are solely modest with respect to pricing. Everything else is thoroughly pure HELIX quality without any compromises. Loads of power, excellent measurement data and a whole bunch of features ensure a pristine and crispy sound experience!
Absolutely nothing has been missed for powerful bass reproduction – the active crossover with subsonic filter, the lowpass filter, phase control and bass boost are equally as self-evident as the intelligent highlevel input that incorporates Audiotec Fischer´s proprietary ADEP circuit. Not to mention the cable remote control for volume that is included in delivery.
Thanks to its 1-Ohm stability the D ONE is every else but choosy when selecting an appropriate subwoofer. If you still think that the power output isn’t sufficient, then simply combine two devices to one single powerhouse – the master/slave option makes it possible.The elegant design not only states right from the beginning the amp’s heritage but also allows an easy integration into your car thanks to its compact dimensions. Get your car “bass-tuned” and simply have fun!












