{"product_id":"parasound-halo-a31-3-channel-power-amplifier","title":"Parasound Halo A31 3-Channel Power Amplifier","description":"\u003ch3\u003e\u003cstrong data-start=\"481\" data-end=\"503\"\u003ePower You Can Feel\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eDrop the A31 into your system and everything locks in: voices stand center‑stage, low end digs deeper without bloat, and effects surge with head‑turning impact. It’s the missing muscle your movies and music have been asking for.\u003c\/p\u003e\n\u003cp\u003eDesigned by legendary audio engineer \u003cstrong data-start=\"261\" data-end=\"274\"\u003eJohn Curl\u003c\/strong\u003e, it runs\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"284\" data-end=\"308\"\u003ehigh‑bias Class A\/AB\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(the first ~7 watts in pure Class A) with a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"353\" data-end=\"371\"\u003edirect‑coupled\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esignal path for maximum clarity. A\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"407\" data-end=\"439\"\u003e1.5 kVA toroidal transformer\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"444\" data-end=\"457\"\u003e98,400 µF\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof filter capacitance supply clean current on demand, while\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"518\" data-end=\"559\"\u003e250 W x3 into 8 Ω (400 W x3 into 4 Ω)\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"561\" data-end=\"592\"\u003ebalanced XLR and RCA inputs\u003c\/strong\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"598\" data-end=\"612\"\u003eTHX Ultra2\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecertification make integration straightforward in serious home theaters. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"725\" data-end=\"768\"\u003ePraised by audiophiles and reviewers alike:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"771\" data-end=\"923\"\u003e\n\u003cem data-start=\"771\" data-end=\"838\"\u003e“Clear, detailed sound that belies its price…a joy to listen to.”\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e—\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"841\" data-end=\"863\"\u003eSoundStage! Access\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Reviewers’ Choice)\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"926\" data-end=\"1064\"\u003e\n\u003cem data-start=\"926\" data-end=\"980\"\u003e“Impeccable in fit and finish…powerful but refined.”\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e—\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"983\" data-end=\"1026\"\u003eSecrets of Home Theater \u0026amp; High Fidelity\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1066\" data-end=\"1103\"\u003e\u003cspan\u003e\u003cstrong data-start=\"1066\" data-end=\"1103\"\u003eAwards \u0026amp; Recognition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1106\" data-end=\"1221\"\u003e\n\u003cstrong data-start=\"1106\" data-end=\"1181\"\u003eStereophile — Recommended Components (2012, Surround‑Sound Components).\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1224\" data-end=\"1314\"\u003e\n\u003cstrong data-start=\"1224\" data-end=\"1274\"\u003eSoundStage! Access — Reviewers’ Choice (2015).\u003c\/strong\u003e\u003cspan class=\"\" data-state=\"closed\"\u003e\u003cspan class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\" data-testid=\"webpage-citation-pill\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1317\" data-end=\"1443\"\u003e\u003cstrong data-start=\"1317\" data-end=\"1405\"\u003eSecrets of Home Theater \u0026amp; High Fidelity — Best of 2012: Best Multichannel Amplifier.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong data-start=\"1317\" data-end=\"1405\"\u003eSpecifications: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContinuous power output:\u003c\/strong\u003e\u003cbr\u003e250 watts RMS x 3, 20 Hz - 20 kHz, 8 Ω, all channels driven\u003cbr\u003e400 watts RMS x 3, 20 Hz - 20 kHz, 4 Ω, all channels driven\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent capacity:\u003c\/strong\u003e\u003cbr\u003e60 amperes peak per channel\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower bandwidth:\u003c\/strong\u003e\u003cbr\u003e5 Hz - 100 kHz, +0\/-3 dB at 1 watt\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTotal harmonic distortion:\u003c\/strong\u003e\u003cbr\u003e\u0026lt; 0.2 % at full power\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIM distortion:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebalanced 16 V rms\u003cbr\u003e\u0026lt; 0.04 %\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSlew rate:\u003c\/strong\u003e\u003cbr\u003e\u0026gt; 130 V\/µsecond\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDynamic headroom:\u003c\/strong\u003e\u003cbr\u003e\u0026gt; 1.5 dB\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInterchannel crosstalk:\u003c\/strong\u003e\u003cbr\u003e\u0026gt; 78 dB at 1 kHz;\u003cbr\u003e\u0026gt; 63 dB at 20 kHz\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInput sensitivity:\u003c\/strong\u003e\u003cbr\u003e1 V for 28.28 V (THX Reference)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInput impedance:\u003c\/strong\u003e\u003cbr\u003e47 k Ω unbalanced; 94 k Ω balanced\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eS\/N ratio:\u003c\/strong\u003e\u003cbr\u003e112 dB, input shorted, IHF A-weighted\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDamping factor:\u003c\/strong\u003e\u003cbr\u003e\u0026gt; 1100 at 20 Hz\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003cbr\u003e17-1\/2\" w x 7-5\/8\" h x 20\" d, 7\" h without feet\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNet weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e65 lb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e79 lb.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e250 watts x 3 @ 8 Ohms \/ 400 watts x 3 @ 4 Ohms\u003c\/li\u003e\n\u003cli\u003eAdjustable gain for up to +6db over THX Reference level\u003c\/li\u003e\n\u003cli\u003eUnbalanced RCA and balanced XLR inputs\u003c\/li\u003e\n\u003cli\u003eCircuitry designed by legendary John Curl\u003c\/li\u003e\n\u003cli\u003eHigh bias class A\/AB operation\u003c\/li\u003e\n\u003cli\u003eDirect coupled (no capacitors or inductors in signal path)\u003c\/li\u003e\n\u003cli\u003eComplementary MOSFET driver stage and JFET input stage\u003c\/li\u003e\n\u003cli\u003e24 beta-matched 15 amp, 60 MHz bipolar output transistors\u003c\/li\u003e\n\u003cli\u003e1.5 kVA encapsulated toroid power transformer with independent\u003cbr\u003esecondary windings for each channel\u003c\/li\u003e\n\u003cli\u003e98,400 µF power supply filter capacitance\u003c\/li\u003e\n\u003cli\u003eDC Servo and relay protection circuits\u003c\/li\u003e\n\u003cli\u003eAC present, channel status, high temperature indicators\u003c\/li\u003e\n\u003cli\u003eHeavy-duty 24k gold-plated 5-way speaker terminals\u003c\/li\u003e\n\u003cli\u003eTHX Ultra2 certified\u003c\/li\u003e\n\u003cli\u003eAuto turn-on by 12v trigger or audio signal\u003c\/li\u003e\n\u003cli\u003e4u Chassis, carry handles, rack mounting adapter included\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parasound","offers":[{"title":"Default Title","offer_id":62771128729759,"sku":null,"price":5880.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/5532\/6111\/files\/a31_angle_black_d34af58c-dc0b-4def-b5a2-c025a74498fe.jpg?v=1776197458","url":"https:\/\/altitudoaudio.ca\/products\/parasound-halo-a31-3-channel-power-amplifier","provider":"Altitudo Audio","version":"1.0","type":"link"}