{"product_id":"zapco-harmony-hb-104d-ii-4-channel-full-range-class-d-micro-power-amplifier","title":"Zapco Harmony HB 104D II 4-Channel Full-Range Class-D Micro Power Amplifier","description":"\u003ch2\u003eCompact Power \u0026amp; Clarity: Zapco Harmony HB 104D II\u003c\/h2\u003e\n\u003cp\u003eUpgrade your in-car listening experience with the \u003cb\u003eZapco HB 104D II\u003c\/b\u003e full-range Class-D amplifier. Combining a space-saving micro chassis with robust power performance, this 4-channel unit delivers \u003cb\u003e100W x 4 RMS @ 4Ω\u003c\/b\u003e and \u003cb\u003e140W x 4 RMS @ 2Ω\u003c\/b\u003e, with bridging capabilities up to \u003cb\u003e280W x 2 RMS @ 4Ω\u003c\/b\u003e—making it a perfect choice for upgrading door speakers or running a 3-channel front stage + subwoofer setup.\u003c\/p\u003e\n\u003ch2\u003eKey Features \u0026amp; Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHigh-Efficiency Class-D Output:\u003c\/b\u003e Delivers \u003cb\u003e560W RMS total power\u003c\/b\u003e with low heat dissipation and high efficiency in a compact footprint.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFlexible Output Configurations:\u003c\/b\u003e Delivers \u003cb\u003e100W x 4 @ 4Ω\u003c\/b\u003e, \u003cb\u003e140W x 4 @ 2Ω\u003c\/b\u003e, and bridges to \u003cb\u003e280W x 2 @ 4Ω\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSeamless Integration:\u003c\/b\u003e Features both RCA Low-Level and High-Level Speaker inputs for easy connectivity to factory radios or aftermarket head units.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eVariable Crossover Control:\u003c\/b\u003e Integrated electronic crossovers allow fine-tuning with selectable High-Pass (HPF) and Low-Pass (LPF) modes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMicro Form Factor:\u003c\/b\u003e Measures just \u003cb\u003e180 mm x 115 mm x 45.5 mm\u003c\/b\u003e, fitting effortlessly under seats or behind trim panels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBrand:\u003c\/b\u003e Zapco\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSeries:\u003c\/b\u003e Harmony Blue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eModel:\u003c\/b\u003e HB 104D II\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAmplifier Topology:\u003c\/b\u003e Full-Range Class D\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eChannels:\u003c\/b\u003e 4-Channel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRMS Power Output @ 4 Ohm:\u003c\/b\u003e 100 Watts x 4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eRMS Power Output @ 2 Ohm:\u003c\/b\u003e 140 Watts x 4\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eBridged Power Output @ 4 Ohm:\u003c\/b\u003e 280 Watts x 2\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFrequency Response:\u003c\/b\u003e 20 Hz – 20,000 Hz (±1dB)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSignal-to-Noise Ratio (S\/N):\u003c\/b\u003e \u0026gt; 90 dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTHD + Noise:\u003c\/b\u003e \u0026lt; 0.1%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTHD @ Rated Power:\u003c\/b\u003e \u0026lt; 0.5%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eInput Sensitivity:\u003c\/b\u003e 0.25V – 6.0V (Low-Level RCA)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eInput Types:\u003c\/b\u003e RCA Low-Level \u0026amp; Speaker High-Level Inputs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCrossover Control:\u003c\/b\u003e Variable Electronic High-Pass \/ Low-Pass Crossovers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDimensions (L x W x H):\u003c\/b\u003e 180 mm x 115 mm x 45.5 mm (7.08\" x 4.52\" x 1.79\")\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eCan I connect the Zapco HB 104D II to my factory head unit without a Line Output Converter?\u003c\/h3\u003e\n\u003cp\u003eYes! The HB 104D II includes built-in High-Level speaker inputs, allowing direct connection to OEM factory stereo speaker wires.\u003c\/p\u003e","brand":"Car Concepts Shop","offers":[{"title":"Default Title","offer_id":49347622043803,"sku":null,"price":21449.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0598\/6392\/4891\/files\/Zapco_Harmony_HB_104D_II_4_channel_full_range_class_D_car_amplifier_560W_RMS.png?v=1787333981","url":"https:\/\/carconceptsshop.com\/products\/zapco-harmony-hb-104d-ii-4-channel-full-range-class-d-micro-power-amplifier","provider":"Car Concepts Shop","version":"1.0","type":"link"}