{"product_id":"fosi-audio-za3-stereo-power-amplifier-tpa3255-class-d-hifi-audio-amp-for-passive-bookshelf-speaker-with-xlr-rca-balanced-input","title":"Fosi Audio ZA3 Stereo Power Amplifier TPA3255 Class D HiFi Audio Amp for Passive Bookshelf Speaker With XLR\/RCA\/Balanced Input","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eAmplifier Chip\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eTexas Instruments TPA3255\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eFosi Audio\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCertification\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eCE\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChannel\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e2.0\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eChannels\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e2 (2.0)\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eControl Method\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003ePush button\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eDy namic Range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e≥106dB\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eFeature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eaudio amplifier\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHighlight\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eHome Theater Amplifier\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eInput\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eRCA\/XLR\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eInput Voltage Range\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eDC 24-48V\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMAX Power Output\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e155W*2 For 2 Channel,  235W for Mono\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaterial\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003ealuminum\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eMaximum Power Per Channel\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eAbove 200W\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eModel Number\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eZA3\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eSpeaker Output+ Active Sub Out\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOutput Power\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e155W\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003ePackage\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eYes\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSINAD\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e89dB\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSNR\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e≥106dB\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSpeaker Impedance Compatibility\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e2-8Ω\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eSurround sound channel configuration\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eOthers\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eTHD\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003e\u0026lt;0.006%\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStereo Audio amplifier\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003efeature\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eStereo Power Amplifier\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003ckse:widget data-widget-type=\"customText\" id=\"1005000000920131\" type=\"custom\"\u003e\u003c\/kse:widget\u003e\u003c\/div\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv class=\"detailmodule_media\"\u003e\u003cdiv class=\"video-container-1100202371880\"\u003e\u003cdiv class=\"detail-video\" id=\"1100202371880\" data-previewurl=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S07a6f13865f54575844272e9fd9ead2aF.jpg\"\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cdiv\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan style=\"font-size:22px\"\u003eFosi Audio ZA3 Stereo Power Amplifier TPA3255 Class D HiFi Audio Amp for Passive Bookshelf Speaker With XLR\/RCA\/Balanced Input\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"font-size:22px\"\u003eHighlight:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv class=\"detailmodule_html\"\u003e\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\u003cdiv\u003e\n\u003cul\u003e\u003cli\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size:20px\"\u003eDual-Mode Innovation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size:20px\"\u003e: This new generation mini amplifier offers both stereo and mono modes, adapts flexibly to your diverse needs, allowing seamless mode switching. In stereo mode, it delivers a robust output of up to 180W, while in mono mode, the power soars to a maximum of 235W. Pair two ZA3 units in mono configuration to create a powerful audio system, significantly enhancing your listening experience.\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\u003cli\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size:20px\"\u003eRicher Connectivity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size:20px\"\u003e: Debut amplifier with balanced input and trigger in, the ZA3 features a balanced combo audio signal input connector supporting both XLR and 1\/4\" TRS plugs. This design minimizes interference and reduces noise floor. The 12V trigger-in connector enables synchronization with other devices, streamlining the process of turning on\/off without individual operations.\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\u003cli\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size:20px\"\u003eAudiophile-Grade Components\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size:20px\"\u003e: The ZA3 features the TPA3255 high-end Class-D amp chip and utilizes premium Japanese NCC, ELNA, and German WIMA capacitors, and Japanese Sumida inductors for exceptional audio quality. With a SINAD rating of up to 89dB, an SNR of up to 106dB, and a low noise floor of only 150μV, it delivers exceptional clarity and low distortion.\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\u003cli\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size:20px\"\u003eAdvanced Heat Dissipation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size:20px\"\u003e: Based on V3's groundbreaking heat dissipation design, we upgraded ZA3's cooling system by featuring a larger chassis, moving vents to the sides, and adding dust covers to achieve better ventilation for a sustained and stable high power output.\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cul\u003e\u003cli\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size:20px\"\u003eEnhanced Scalable Fun\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size:20px\"\u003e: Personalize your audio experience with the op-amp rolling feature! The ZA3 stocks five swappable op-amps for left and right channel outputs, balanced input, and subwoofer output. Experiment with compatible DIP8 dual op-amps such as Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4558, LM4562, LME49720HA, etc. to fine-tune your sound to perfection.\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan style=\"font-size:22px\"\u003eSpecifications:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003eMax Power Output: \u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003e                                         180Wx2 @4Ω Stereo(with 48v power supply)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003e                                         235W @4Ω Mono(with 48v power supply)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003e                                         95x2W @4Ω Stereo(with 32v power supply)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003e                                        110W @4Ω Mono(with 32v power supply)\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003eSINAD: 89dB\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003eSNR: ≥106dB\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003eTerminating Impedance: 2-8Ω\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003eTHD: 0.006%\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003ePower Amp Chip: TI TPA3255\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003eOp-Amp: TI NE5532 x2\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003ePower Supply: 32V\/5A, 48V\/5A\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003eInput Range: DC 24V-48V\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003eFrequency Response Range: 20Hz-20kHz(±1.2dB)\u003c\/span\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-size:18px\"\u003e\u003cstrong\u003eQ1: What are the differences between the 32V power supply version and the 48V power supply version?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003eThe 48V power supply offers higher output power and performance. If your budget allows, we recommend choosing the 48V power supply version.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cimg width=\"944\" height=\"NaN\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S5b658715c2be491a8e00cdb8dea2e983h.png\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-size:20px\"\u003e\u003cstrong\u003eQ2:Which op-amps are supported on the ZA3?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cimg width=\"944\" height=\"NaN\" src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S439fa8b112c744e28a4d1be1808c55992.png\" slate-data-type=\"image\"\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sf64f7c97429e4c8f9f39ae4400f25201D.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S5c2bc1fc375540c9afcace90aec9b634d.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Se3d6a50331a6476189ab8a862dcab65bI.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S9df19a9af16f42118539fedbeafc7c5bs.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S79410b63e481429e9b795ecd36bb26fdY.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sbebf9ca9cb85489f9f8dba3bee619933O.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Seea7713ef95540729e988e5bc2198797C.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sd0ea4fe98a9e436c89d34fc214227e2fc.jpg\" slate-data-type=\"image\"\u003e\u003cimg 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