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Power @ 4Ω: 4 x 180watts RMS
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THD @ Rated Power < 0.5%THD
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Power @ 2Ω: 4 x 280 watts RMS
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Power Bridged @ 4Ω: 2 x 560 W RMS
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Signal to Noise Ratio > 85dB
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THD + Noise < 0.5%
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Frequency Response 15Hz to 30KHz ±1dB
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Input Sensitivity .25v to 5v
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Dimensions in mm: 160(W) x 52(H) x 300(L) Overall: 160(W) x 52(H) x 342(L)
Zapco ST-204D SQ
4 Ch. Class D SQ Amplifier
The Studio D amps are full range Class D amps with great sound, a compact chassis, and more crystal clear power than the competition.
Description
Related products
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Helix M SIX
One for all – no matter if 3-way, 2-way or subwoofer application, the 6-channel amplifier M SIX will always be the right choice.
With generously 100 Watts RMS per channel into both 4 Ohms and 2 Ohms load this amp really gets your speaker cones going despite its super-compact dimensions. On the other hand the M SIX stays totally cool thanks to its highly efficient Class D design topology. And even bridged configurations are possible, delivering up to 3 x 200 Watts RMS of clean and undistorted output power.
In addition a comprehensive and stunningly practical feature set leaves nothing to be desired. And finally the perfect sound tuning is no big deal thanks to its integrated crossover with all its setup options. -
Helix C FOUR
Audiophile sound quality combined with impressive output power
The C FOUR is a high-end 4-channel amplifier that has been designed down to the last detail for ultimate sound quality. Audiotec Fischer’s proprietary 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. The intelligent regulation of the power supply assures stable conditions for the output stages and therefore phenomenal output power independent of the cars battery voltage.
In combination with the optionally available digital input module HDM 2, the C FOUR demonstrates the perfect transition to the digital era. The HDM 2 accepts digital audio signals up to 96 kHz sampling rate via its two optical inputs followed by cutting-edge BurrBrown D/A converters with 32 Bit resolution that transform the signals back to the analog domain. Therefore the C FOUR is absolutely future-proof and perfectly prepared for the combination with our digital signal processors. -
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 P SIX DSP MK2
$7,500.00The HELIX P SIX DSP MK2 6-channel amplifier is not built to solely deliver loads of clean power; it also incorporates a cutting-edge 8-channel DSP with outstanding processing power. This amalgamation sets a completely new standard with its “Ultra HD Class D” amplifier technology.
Thanks to its 96 kHz sampling rate and an extended audio bandwidth of more than 40 kHz, this technological feat of precision engineering raises the bar in terms of sound quality.
If we put all that aside for a moment, versatility was another major milestone to be reached during the development process. Therefore, we are happy to introduce HEC. The HELIX Extension Card (HEC) slot allows you to extend the devices possibilities well beyond the commonplace RCA jacks. Interfaces like a Bluetooth® Audio Streaming module or a High Resolution Audio USB soundcard have been crafted to give you more options than ever.
Two fully-processed RCA outputs provide connectivity for daisy-chaining more amplifiers without a need for a second DSP.
The configuration of the internal 64 Bit DSP could hardly be easier thanks to the professional and user-friendly DSP PC-Tool software that offers almost unlimited sound tuning features.
Despite this impressive feat of engineering, the P SIX DSP MK2 has not shed its HELIX design heritage; it still has the clean design while remaining very compact for ease of installation.