{"product_id":"helix-c-four-4-channel-x-220-watt-high-res-audiophile-ultimate-sound-quality-new-1","title":"HELIX C FOUR 4-Channel x 220 Watt High-Res Audiophile Ultimate Sound Quality NEW","description":"\u003cspan\u003e\n\u003cspan\u003e\n\u003cspan\u003e\n\u003cspan\u003e\n\u003ch1\u003eHELIX C FOUR\u003c\/h1\u003e\n\u003c\/span\u003e\n\u003cspan\u003e\n\u003cp\u003eAudiophile sound quality combined with impressive output power\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003cbr\u003eIn 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.\u003c\/p\u003e\n\u003c\/span\u003e\n\u003cspan\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003c\/span\u003e\n\u003cspan\u003e\n\u003cul\u003e\n\u003cli\u003eExtremely broadband Class AB amplifier with eight selected MOSFET transistors per channel for exceptional sound quality - ideal for High-Resolution audio\u003c\/li\u003e\n\u003cli\u003eUltra low-noise and distortion-free power amp drivers in Class A technology\u003c\/li\u003e\n\u003cli\u003eEnormous damping factor of 1,000 @ 4 Ohms for perfect speaker control\u003c\/li\u003e\n\u003cli\u003eOptionally available HELIX Digital Input Module (HDM) to extend the amplifier with two optical digital inputs in SPDIF format\u003c\/li\u003e\n\u003cli\u003eIntegrated, active crossover with highpass, lowpass and bandpass\u003c\/li\u003e\n\u003cli\u003eRegulated DC \/ DC switching power supply with Start-Stop capability down to 6V supply voltage\u003c\/li\u003e\n\u003cli\u003eMicroprocessor-based monitoring of amplifier status including temperature-dependent fan control\u003c\/li\u003e\n\u003cli\u003eInput Mode switch for flexible routing of the input signals\u003c\/li\u003e\n\u003cli\u003eCutting-edge BurrBrown D\/A converters with 32 Bit resolution in combination with the optional HDM 2 module\u003c\/li\u003e\n\u003cli\u003eMassive 24-carat gold-plated power and speaker terminals\u003c\/li\u003e\n\u003cli\u003eQuad-layer PCB with extra-solid 70μ copper traces for lowest possible losses and SMD (Surface Mounted Device) manufacturing technology\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecial features:\u003c\/h3\u003e\n\u003ch4\u003eStart-Stop capability\u003c\/h4\u003e\n\u003cp\u003eThe switched power supply of the HELIX C FOUR assures operation even if the battery's voltage drops down to 6 Volts during engine crank.\u003c\/p\u003e\n\u003ch4\u003eHigh-Resolution audio\u003c\/h4\u003e\n\u003cp\u003eThe extremely broadband audio bandwidth of the amplifier ensures a lossless audio reproduction of High-Resolution audio content to provide the best possible sound in studio quality.\u003c\/p\u003e\n\u003c\/span\u003e\n\u003cspan\u003e\n\u003ch3\u003eTechnical data\u003c\/h3\u003e\n\u003c\/span\u003e\n\u003cspan\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eOutput power RMS  ≤ 1% THD+N\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- @ 4 Ohms\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e4 x 150 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- @ 2 Ohms\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e4 x 220 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- @ 1 Ohm\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- bridged @ 4 Ohms\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e2 x 440 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- bridged @ 2 Ohms\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eMax. output power per channel*\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003eUp to 250 Watts RMS @ 2 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eAmplifier technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003eClass AB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e4 x RCA \/ Cinch\u003cbr\u003e1 x Remote In\u003cbr\u003eOptional via HDM 2 module:\u003cbr\u003e2 x Optical SPDIF (28 - 96 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eInput sensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003eRCA \/ Cinch 1 - 8 Volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eInput impedance RCA \/ Cinch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e7.5 kOhms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eInput impedance highlevel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e4 x Speaker output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eOutput voltage RCA \/ Cinch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eSignal converter for digital input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eFrequency response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e10 Hz - 80,000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eBass boost\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e-  \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eHighpass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e15 Hz - 4,000 Hz adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eLowpass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e15 Hz - 4,000 Hz adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eBandpass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e15 Hz - 4,000 Hz adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eSubsonic\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eSlope high- \/ lowpass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e12 dB\/Oct.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eSlope subsonic \/ lowpass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eSignal-to-noise ratio digital input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e- \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eSignal-to-noise ratio analog input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e112 dB (A-weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eDistortion (THD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u0026lt; 0.007 %\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eDamping factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u0026gt; 1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eOperating voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e9 - 16 Volts  (max. 5 sec. down to 6 Volts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eIdle current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e2400 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eOperating temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e-40 °C to +70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eFuse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e3 x 30 A LP-Mini-fuse (APS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eAdditional features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003eActive, adjustable crossover, HDM slot, input mode switch, High-Resolution audio, Start-Stop capability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e\u003cstrong\u003eDimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\"\u003e37.1 x 430 x 240 mm \/\u003cbr\u003e1.46 x 16.93 x 9.45\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e* In typical multi-channel applications (2- \/ 3-way system + rear + subwoofer)\u003c\/p\u003e\n\u003c\/span\u003e\n\u003cspan\u003e\n\u003ch3\u003eScope of delivery\u003c\/h3\u003e\n\u003c\/span\u003e\n\u003cspan\u003e\n\u003cspan\u003e\n\u003cp\u003e1 x High-end amplifier HELIX C FOUR\u003cbr\u003e2 x Allen key\u003cbr\u003e1 x Mounting material\u003cbr\u003e1 x Instruction manual\u003c\/p\u003e\n\u003c\/span\u003e\n\u003c\/span\u003e\n\u003c\/span\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003c\/span\u003e\n\u003c\/span\u003e","brand":"Helix","offers":[{"title":"Default Title","offer_id":45698886500531,"sku":null,"price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/5638\/0339\/files\/57_18e4dbff-fd71-4cb1-a029-c08fc1073a4b.jpg?v=1784284739","url":"https:\/\/www.edgecustomaudio.net\/products\/helix-c-four-4-channel-x-220-watt-high-res-audiophile-ultimate-sound-quality-new-1","provider":"Edge Custom Audio","version":"1.0","type":"link"}