{"product_id":"fosi-audio-za3","title":"Fosi Audio ZA3","description":"\u003cp\u003eFosi Audio ZA3 is a balanced Class D power amplifier that operates in stereo or high-power mono mode.\u003c\/p\u003e\u003cp\u003eIts TPA3255 platform, XLR\/TRS and RCA inputs, active-subwoofer output and scalable architecture make it a flexible foundation for compact HiFi systems.\u003c\/p\u003e\u003ch2\u003eWhy it stands out\u003c\/h2\u003e\u003cp\u003eFour reasons this product deserves a place in a well-planned audio system.\u003c\/p\u003e\u003ch3\u003eStereo or Mono Operation\u003c\/h3\u003e\u003cp\u003eUse one ZA3 for a conventional stereo system or two units in mono mode for a scalable dual-mono installation.\u003c\/p\u003e\u003ch3\u003eBalanced XLR\/TRS Input\u003c\/h3\u003e\u003cp\u003eThe combo balanced input helps reject interference and integrates with balanced DACs and preamplifiers.\u003c\/p\u003e\u003ch3\u003eActive Subwoofer Output\u003c\/h3\u003e\u003cp\u003eA dedicated line-level output simplifies adding a powered subwoofer to a stereo system.\u003c\/p\u003e\u003ch3\u003eReplaceable Op-Amps\u003c\/h3\u003e\u003cp\u003eSocketed op-amps let experienced users experiment with compatible DIP8 dual op-amps.\u003c\/p\u003e\u003ch2\u003eBest for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBalanced DAC and preamp systems\u003c\/li\u003e\n\u003cli\u003eStereo passive-speaker systems\u003c\/li\u003e\n\u003cli\u003eDual-mono amplifier upgrades\u003c\/li\u003e\n\u003cli\u003e2.1 systems using a powered subwoofer\u003c\/li\u003e\n\u003cli\u003eInstallations using 12V trigger control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eNot ideal for\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eUsers expecting Bluetooth, USB or digital inputs\u003c\/li\u003e\n\u003cli\u003eBuyers needing a headphone output\u003c\/li\u003e\n\u003cli\u003ePassive subwoofers without their own amplifier\u003c\/li\u003e\n\u003cli\u003eBuyers who have not checked whether their variant includes a power adapter\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"emiuzek-product-content-images\" style=\"width:100%;max-width:1100px;margin:8px auto 32px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/Fosi_Audio_ZA3_013.webp\" alt=\"Fosi Audio ZA3 TPA3255 amplifier chip and low-distortion performance\" loading=\"lazy\" style=\"display:block;width:100%;max-width:1100px;height:auto;margin:0 auto 24px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/Fosi_Audio_ZA3_015.webp\" alt=\"Fosi Audio ZA3 12V trigger synchronization interface\" loading=\"lazy\" style=\"display:block;width:100%;max-width:1100px;height:auto;margin:0 auto 24px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0604\/7422\/8829\/files\/Fosi_Audio_ZA3_008.webp\" alt=\"Fosi Audio ZA3 balanced stereo and mono power amplifier system\" loading=\"lazy\" style=\"display:block;width:100%;max-width:1100px;height:auto;margin:0 auto 24px;\"\u003e\n\u003c\/div\u003e\u003ch2\u003eEMiUZEK Buying Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eZA3 is a power amplifier and requires an external source or preamp with suitable volume control.\u003c\/li\u003e\n\u003cli\u003eThe subwoofer output is line level and is only for a powered subwoofer.\u003c\/li\u003e\n\u003cli\u003eCheck the selected variant: amplifier-only, 32V\/5A and 48V\/5A power options are listed separately.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eCan one ZA3 power a stereo pair?\u003c\/h3\u003e\u003cp\u003eYes. Use stereo mode to power left and right passive speakers from one unit.\u003c\/p\u003e\u003ch3\u003eWhen are two ZA3 amplifiers required?\u003c\/h3\u003e\u003cp\u003eUse two units when building a dual-mono stereo system, with one amplifier assigned to each channel.\u003c\/p\u003e\u003ch3\u003eCan it connect to an XLR source?\u003c\/h3\u003e\u003cp\u003eYes. The balanced combo input supports XLR and 1\/4-inch TRS connections.\u003c\/p\u003e\u003ch3\u003eCan it power a passive subwoofer?\u003c\/h3\u003e\u003cp\u003eNo. Its subwoofer output is line level and requires a powered subwoofer.\u003c\/p\u003e\u003ch3\u003eDoes it include Bluetooth or a DAC?\u003c\/h3\u003e\u003cp\u003eNo. Connect an external DAC, streamer or preamplifier through RCA or balanced input.\u003c\/p\u003e\u003ch3\u003eDoes every option include a power supply?\u003c\/h3\u003e\u003cp\u003eNo. Verify the selected product variant before ordering.\u003c\/p\u003e\u003ch2\u003eHOW TO CONNECT\u003c\/h2\u003e\u003ch3\u003eBalanced stereo system\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSource:\u003c\/strong\u003e Balanced DAC or preamp\u003cbr\u003e\u003cstrong\u003eConnection:\u003c\/strong\u003e XLR \/ 1\/4-inch TRS\u003cbr\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e Speaker terminals\u003cbr\u003e\u003cstrong\u003eTarget:\u003c\/strong\u003e Passive speaker pair\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Set ZA3 to stereo mode.\u003c\/p\u003e\u003ch3\u003eDual-mono system\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSource:\u003c\/strong\u003e Balanced DAC or preamp\u003cbr\u003e\u003cstrong\u003eConnection:\u003c\/strong\u003e One balanced channel to each ZA3\u003cbr\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e Speaker terminal in mono configuration\u003cbr\u003e\u003cstrong\u003eTarget:\u003c\/strong\u003e One passive speaker per amplifier\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Use two ZA3 units and set both to mono mode.\u003c\/p\u003e\u003ch3\u003e2.1 stereo system\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSource:\u003c\/strong\u003e DAC \/ preamp\u003cbr\u003e\u003cstrong\u003eConnection:\u003c\/strong\u003e RCA or balanced input\u003cbr\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e Speaker outputs plus sub-out\u003cbr\u003e\u003cstrong\u003eTarget:\u003c\/strong\u003e Passive speakers and powered subwoofer\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Do not connect a passive subwoofer to sub-out.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ch3\u003eAmplifier\u003c\/h3\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;min-width:680px;border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eStereo\/mono Class D power amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eAmplifier Chip\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eTexas Instruments TPA3255\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eSpeaker Impedance\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e2–8Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eModes\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eStereo \/ PBTL mono\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003ePerformance\u003c\/h3\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;min-width:680px;border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eRated Output with 48V\/5A\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e155W x2 at 4Ω stereo; 235W x1 at 4Ω mono\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eRated Output with 32V\/5A\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e95W x2 at 4Ω stereo; 110W x1 at 4Ω mono\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e20Hz–20kHz (±0.1dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eSINAD\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e89dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eSNR\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e≥106dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eTHD\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e\u0026lt;0.006%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eDynamic Range\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e≥106dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eConnectivity and Power\u003c\/h3\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;min-width:680px;border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eInputs\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eRCA; XLR \/ 1\/4-inch TRS balanced combo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eOutputs\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003ePassive speakers; active subwoofer line output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eTrigger\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e12V trigger input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eDC Input Range\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e24–48V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003ePower Options\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e32V\/5A or 48V\/5A; variant dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eRecommended System Setup\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;min-width:680px;border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eSetup\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eConnection\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eStereo HiFi\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eDAC\/preamp → ZA3 stereo mode → passive speaker pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eDual mono\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eBalanced preamp → two ZA3 units → passive speaker pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e2.1 system\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eSource\/preamp → ZA3 → passive speakers + powered subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eAdditional Product Content\u003c\/h2\u003e\u003cdiv style=\"overflow-x:auto;-webkit-overflow-scrolling:touch;\"\u003e\u003ctable style=\"width:100%;min-width:680px;border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eZA3\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eV3 Mono\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:12px;border-bottom:2px solid #222;\"\u003eTB10D\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eAmplifier Format\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eStereo \/ mono selectable\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eMonoblock\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eStereo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eAmplifier Chip\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eTPA3255\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eTPA3255\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eTPA3255\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eInputs\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eXLR\/TRS, RCA\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eXLR, RCA\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eRCA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eStereo from One Unit\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eMono Mode\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eAlways mono\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eActive Subwoofer Output\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003e12V Trigger\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eInput\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eTone Controls\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eNo\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eBass, treble\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid #ddd;vertical-align:top;\"\u003eOp-Amp Rolling\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border-bottom:1px solid 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