{"product_id":"helix-amplify-201-x-over-subwoofer-amplifier-with-crossover-mono-sub-amp","title":"Helix Amplify 201 X-Over Subwoofer Amplifier with Crossover Mono Sub Amp","description":"\u003cdiv id=\"description\" class=\"detail-decription-headline\"\u003e \u003ch2\u003eHELIX AMPLIFY 201 X-OVER\u003c\/h2\u003e \u003c\/div\u003e \u003cdiv id=\"description--text\" class=\"product--description\"\u003e \u003ch4\u003eHELIX AMPLIFY – Power. Clarity. Purpose.\u003c\/h4\u003e \u003cp\u003eWith the AMPLIFY series, HELIX redefines the idea of modern amplifier design – by reinterpreting classic concepts through the lens of today’s audio demands. Rather than designing one amplifier to do everything, the focus lies on specialized models, each tailored for a specific type of application. This clear philosophy ensures every variant delivers exactly what’s needed – and nothing you don’t.\u003c\/p\u003e \u003cp\u003eThe 2-Series marks the entry into the AMPLIFY platform – and forms its technical and tonal core. These compact Class D amplifiers combine powerful performance, a fully bridgeable multi-channel architecture, and excellent efficiency with seamless real-world integration. Brilliant and precise treble, a controlled mid-range as well as tight, powerful bass – the 2-Series brings out every nuance of natural, powerful sound, outperforming the expectations of its class in both sound quality and output. Whether as a DIRECT, X-OVER, or DSP variant (coming in summer 2025): from flexible 6-channel setups for fullrange applications to dedicated mono powerhouses for subwoofers – the 2-Series offers tailored solutions for every configuration.\u003c\/p\u003e \u003ch4\u003eAMPLIFY 201 – The specialists for subwoofer performance\u003c\/h4\u003e \u003cp\u003eUncompromising bass power in a compact format: The AMPLIFY 201 monoblock amplifiers are specifically designed for subwoofer upgrades and deliver powerful output with excellent control – ideal for deep, dynamic bass with maximum precision. With up to 750 W RMS at 1 Ohm, adjustable subsonic and lowpass filters, and phase control in the X-OVER version – or an uncompromised signal path in the DIRECT model – along with their compact footprint, the AMPLIFY 201 amplifiers are the perfect choice for targeted subwoofer upgrades in modern sound systems.\u003c\/p\u003e \u003ch4\u003eSound and power – above the standard\u003c\/h4\u003e \u003cp\u003eThe AMPLIFY 2-Series is more than just a range of application-specific solutions – it's a clear commitment to a very specific mission: to outperform expectations in each of those applications – both in sound quality and power delivery. All amplifiers in the series offer brilliant sound performance, minimal distortion, and an outstanding signal-to-noise ratio – combined with fully bridgeable multi-channel outputs for maximum output and installation flexibility. The result: a lineup that doesn’t define itself by its class, but sets new benchmarks within it – making AMPLIFY the first choice for those seeking application-focused performance without compromise.\u003c\/p\u003e \u003ch4\u003eAMPLIFY X-OVER – Maximum flexibility for classic upgrades\u003c\/h4\u003e \u003cp\u003eX-OVER models are the ideal choice for traditional sound upgrades using factory or aftermarket radios. Switchable high-level and RCA inputs allow seamless integration into a wide range of system configurations. The high-level input is designed for input voltages up to 32 V, ensuring maximum compatibility with modern factory head units and premium sound systems. In addition, an integrated auto turn-on function enables the amplifier to also be activated via the music signal – without the need for a separate remote line. The integrated active crossover enables precise signal tuning, by offering high-quality 12 dB lowpass and subsonic filters, phase control, an Input mode switch and an included remote control option. In addition, the integrated ADEP.3 circuit prevents error messages in OEM systems, making X-OVER models a versatile and integration-friendly solution\u003c\/p\u003e \u003ch4\u003eForm follows performance\u003c\/h4\u003e \u003cp\u003eThe design of the HELIX AMPLIFY 2-Series blends modern functionality with a refined, technical aesthetic. Its compact dimensions allow for flexible installation, even in tight spaces. A removable top cover conceals all connections and controls, offering additional protection as well as a clean and streamlined appearance that highlights the amplifier’s high-quality character. Matte surfaces, sharp contours, and a minimalist design language create a sleek, exclusive look that integrates seamlessly into any modern vehicle interior.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e \u003c\/div\u003e \u003cdiv id=\"features\" class=\"detail-features-headline\"\u003e \u003ch3\u003eFeatures\u003c\/h3\u003e \u003c\/div\u003e \u003cdiv class=\"product--features\"\u003e \u003cul\u003e \u003cli\u003eHighly efficient subwoofer amplifier with high output power of up to 750 Watts RMS @ 1 Ohm – a perfect match for all 2 x 2 Ohms subwoofers connected in parallel\u003c\/li\u003e \u003cli\u003eIdeal for subwoofer upgrades of factory sound systems thanks to integrated, active crossover and high power stereo highlevel input with up to 32 V RMS input sensitivity\u003c\/li\u003e \u003cli\u003eHighlevel input with ADEP.3 for trouble-free integration into OEM sound systems\u003c\/li\u003e \u003cli\u003eCrossover with lowpass, subsonic and phase for optimal system configuration\u003c\/li\u003e \u003cli\u003eAdditional auto turn-on via music signal for maximum compatibility with factory sound systems\u003c\/li\u003e \u003cli\u003eVery compact design for space-saving installation\u003c\/li\u003e \u003cli\u003eStart-stop capability down to 6V supply voltage for uninterrupted performance\u003c\/li\u003e \u003cli\u003eAdvanced Class D concept for high efficiency and low heat dissipation\u003c\/li\u003e \u003cli\u003eCable remote control for volume adjustment\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e \u003cdiv id=\"technicaldata\" class=\"product--technicaldata-headline\"\u003e \u003ch3\u003eTechnical data\u003c\/h3\u003e \u003c\/div\u003e \u003cdiv class=\"detail--technicaldata\"\u003e \u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"341\"\u003e\n\u003ccol width=\"320\"\u003e\n\u003c\/colgroup\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\n\u003cstrong\u003ePower RMS ≤ 1% THD+N\u003c\/strong\u003e @ 14.4 V\u003c\/td\u003e \u003ctd\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e- @ 4 Ohms\u003c\/td\u003e \u003ctd\u003e1 x 250 Watts\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e- @ 2 Ohms\u003c\/td\u003e \u003ctd\u003e1 x 450 Watts\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e- @ 1 Ohm\u003c\/td\u003e \u003ctd\u003e1 x 750 Watts*\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e- bridged @ 4 Ohms\u003c\/td\u003e \u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e- bridged @ 2 Ohms\u003c\/td\u003e \u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eMax. output power\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eUp to 850 Watts RMS @ 1 Ohm\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eAmplifier technology\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eClass D\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e1 x RCA \/ Cinch\u003cbr\u003e2 x Highlevel speaker input\u003cbr\u003e1 x Remote In\u003cbr\u003e1 x Remote control input\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eInput sensitivity\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eRCA \/ Cinch: 0.5 - 6 Volts\u003cbr\u003eHighlevel: 3 - 32 Volts\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eInput impedance\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eRCA \/ Cinch: 8 kOhms\u003cbr\u003eHighlevel: 9 - 33 Ohms\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eOutputs\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e1 x Speaker output\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eOutput voltage RCA \/ Cinch\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e- \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSignal converter for digital input\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e- \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eFrequency response\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e10 Hz - 250 Hz\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eBass boost\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e- \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eHighpass\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eLowpass\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e50 Hz - 250 Hz adjustable\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eBandpass\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSubsonic\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e10 Hz - 50 Hz adjustable\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePhase\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e0° - 180° adjustable\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSlope high- \/ lowpass\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eLowpass: 12 dB\/Oct.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSlope subsonic \u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e12 dB\/Oct.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSlope subsonic \/ lowpass\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e- \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eSignal-to-noise ratio (A-weighted)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e114 dB @ full power\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eDistortion (THD @ 1 kHz, 1 W into 4 Ohms)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eDistortion (THD+N @ 1 kHz, 1 W into 4 Ohms)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e-\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eDistortion (THD @ 100 Hz, 1 W into 4 Ohms)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u0026lt; 0.003%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eDistortion (THD+N @ 100 Hz, 1 W into 4 Ohms)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e\u0026lt; 0.02 %\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eDamping factor\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e200\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eOperating voltage\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e10.5 - 16 Volts (max. 5 sec. down to 6 Volts)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eIdle current\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e1,100 mA\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eFuse\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e2 x 30 A LP-Mini-fuse (APS)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003ePower rating\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eDC 12 V ⎓ 80 A max.\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eOperating temperature range\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e-40 °C to +70 °C\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eAdditional features\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003eActive, adjustable crossover, Start-Stop capability, highlevel input with automatic turn-on function, ADEP.3\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e\u003cstrong\u003eDimensions (H x W x D)\u003c\/strong\u003e\u003c\/td\u003e \u003ctd\u003e40 x 248 x 114 mm \/\u003cbr\u003e1.58 x 9.76 x 4.49”\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003c\/div\u003e \u003cdiv id=\"supply\" class=\"detail-supply-headline\"\u003e \u003ch3\u003eScope of delivery\u003c\/h3\u003e \u003c\/div\u003e \u003cdiv class=\"detail--supply-content\"\u003e \u003cdiv class=\"product--supply-inner\"\u003e \u003cp\u003e1 x Amplifier HELIX AMPLIFY 204 X-OVER\u003cbr\u003e1 x Cable remote control\u003cbr\u003e2 x Allen key\u003cbr\u003e1 x Connection cable\u003cbr\u003e2 x Fuse\u003cbr\u003e1 x Mounting material\u003cbr\u003e1 x Instruction manual\u003c\/p\u003e \u003c\/div\u003e \u003c\/div\u003e","brand":"HELIX","offers":[{"title":"Default Title","offer_id":52761343295754,"sku":"AMPLIFY 201 X-OVER","price":199.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0930\/4578\/4842\/files\/amplify-201-x-over_1.jpg?v=1774295210","url":"https:\/\/audiovisualworld.co.uk\/products\/helix-amplify-201-x-over-subwoofer-amplifier-with-crossover-mono-sub-amp","provider":"Audio Visual World","version":"1.0","type":"link"}