{"product_id":"parasound-halo-a-23-160w-stereo-power-amplifier-john-curl-bridgeable","title":"Parasound Halo A 23+ 2-Channel 160W Stereo Power Amplifier, John Curl, Bridgeable","description":"\u003c!-- ============================================================\n     PARASOUND HALO A 23+ — ProHiFi Shopify Product Listing\n     ============================================================\n\n     FIELD 1 — PRODUCT TITLE\n     Parasound Halo A 23+ 160W Stereo Power Amplifier, John Curl, Bridgeable\n     (71 characters)\n\n     FIELD 2 — SEO PAGE TITLE\n     Parasound Halo A 23+ 160W Stereo Power Amplifier | John Curl\n     (61 characters)\n\n     FIELD 3 — SEO META DESCRIPTION\n     Shop Parasound A 23+ — 160W stereo power amp by John Curl, 45A peak, 500W bridged mono, balanced XLR, Class A\/AB. Authorised Parasound Dealer. Best Price in India.\n     (163 characters — trimmed below)\n\n     TRIMMED META (157 characters):\n     Shop Parasound A 23+ — 160W Class A\/AB stereo amp by John Curl, 45A peak, 500W bridged mono, balanced XLR. Authorised Parasound Dealer. Best Price in India.\n\n     FIELD 4 — URL HANDLE\n     parasound-halo-a23-plus-160w-stereo-power-amplifier-john-curl\n     (61 characters)\n\n     PASTE DESCRIPTION HTML BELOW INTO SHOPIFY HTML EDITOR\n     ============================================================ --\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eParasound Halo A 23+\u003c\/strong\u003e is a stereo power amplifier designed by John Curl, delivering 160 watts per channel into 8 ohms and 240 watts into 4 ohms with both channels driven, and 500 watts bridged into mono. It is the most compact and accessible entry into the Parasound Halo amplifier range, housed in a slim 2U chassis that fits into tight rack spaces or smaller equipment rooms.\u003c\/p\u003e\n\n\u003cp\u003eThe circuit is high-bias Class A\/AB with a direct-coupled signal path containing no capacitors or inductors. Twelve beta-matched 15 ampere, 60 MHz bipolar output transistors, a JFET input stage, and MOSFET driver stage feed 45 amps of peak current per channel from a 1 kVA shielded toroidal transformer with independent windings for each channel. The filter capacitance for the output stages is 54,400 microfarads. Independent power supplies serve the input stage, driver stage, and output stage separately. ProHiFi is an authorised Parasound dealer in India.\u003c\/p\u003e\n\n\u003cp\u003eBalanced XLR inputs with discrete circuits and gold-plated RCA inputs with loop outputs are provided, and the AC mains voltage is selectable on the rear panel between 110-125V and 220-250V, making it fully compatible with Indian 230V mains. Automatic turn-on is available via 12V trigger or audio sensing, and the 2U chassis includes rear carry handles.\u003c\/p\u003e\n\n\u003cp\u003eThe A 23+ inherits the same fundamental John Curl circuit architecture as the larger A 21+ and JC 5, and reviewers have consistently noted that its sound character punches well above its price and size. It pairs naturally with the JC 2 BP preamplifier for a compact but high-performance two-channel system, and its bridgeable mono mode at 500 watts makes it a practical upgrade path for higher-power systems.\u003c\/p\u003e\n\n\u003c!-- KEY FEATURES --\u003e\n\u003ch2\u003e\u003cspan style=\"color: #0F527F;\"\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e160W x 2 into 8 ohm; 240W x 2 into 4 ohm; both channels driven\u003c\/li\u003e\n\u003cli\u003e500W bridged mono into 8 ohm\u003c\/li\u003e\n\u003cli\u003eHigh-bias Class A\/AB; designed by John Curl\u003c\/li\u003e\n\u003cli\u003eDirect-coupled; no capacitors or inductors in signal path\u003c\/li\u003e\n\u003cli\u003e45A peak current per channel; stable below 2 ohm impedance dips\u003c\/li\u003e\n\u003cli\u003e12 beta-matched 15A\/60MHz bipolar transistors per channel\u003c\/li\u003e\n\u003cli\u003e1 kVA shielded toroid; 54,400 microfarad filter capacitance\u003c\/li\u003e\n\u003cli\u003eBalanced XLR and gold-plated RCA inputs with loop outputs\u003c\/li\u003e\n\u003cli\u003eHeavy-duty 24k gold-plated 5-way speaker binding posts\u003c\/li\u003e\n\u003cli\u003eAC mains selectable: 110-125V or 220-250V (India 230V compatible)\u003c\/li\u003e\n\u003cli\u003eAuto turn-on by 12V trigger or audio sensing\u003c\/li\u003e\n\u003cli\u003eSlim 2U chassis with rear carry handles; 437 x 105 x 388mm; 14.4kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- WARRANTY --\u003e\n\u003ch2\u003e\u003cspan style=\"color: #0F527F;\"\u003eWarranty:\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e3-year manufacturer's warranty\u003c\/p\u003e\n\u003cdiv class=\"ph-warranty-box\"\u003e\u003c\/div\u003e\n\n\u003c!-- WHY CONSIDER --\u003e\n\u003ch2\u003e\u003cspan style=\"color: #0F527F;\"\u003eWhy Consider the Parasound Halo A 23+\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe A 23+ is the right choice for listeners who want John Curl's circuit design and Parasound's build quality in the most compact and affordable configuration in the Halo range. The 45 amp peak current and stability below 2 ohms mean it handles demanding speaker loads with the same authority as its larger siblings, and the bridgeable mono mode at 500 watts provides an upgrade path for systems that may need more power later. The rear-panel voltage selector is set for 220-250V for Indian mains, making it a genuinely plug-and-play solution without any transformer required. Paired with a JC 2 BP or any quality preamp or streamer with a volume control, it forms a compact, high-performance stereo system built on decades of John Curl amplifier design.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cspan style=\"color: #0F527F;\"\u003eIdeal for\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eListeners wanting John Curl amplifier design at the most accessible Halo price\u003c\/li\u003e\n\u003cli\u003eCompact rooms or equipment racks where a 2U slim chassis is required\u003c\/li\u003e\n\u003cli\u003eSystems pairing with the Parasound JC 2 BP or Halo P 6 preamplifier\u003c\/li\u003e\n\u003cli\u003eDemanding speaker loads requiring 45A peak current and 240W into 4 ohms\u003c\/li\u003e\n\u003cli\u003eThose wanting bridgeable mono capability for a future 500W upgrade path\u003c\/li\u003e\n\u003cli\u003eHome cinema front left\/right channels needing dedicated stereo amplification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- SPECIFICATIONS --\u003e\n\u003ch2\u003e\u003cspan style=\"color: #0F527F;\"\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cstyle\u003e\n  .ph-spec-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }\n  .ph-spec-wrap table { width: 100%; min-width: 360px; border-collapse: collapse; font-size: 0.95em; }\n  .ph-spec-wrap table thead th { text-align: left; padding: 9px 12px; border-bottom: 2px solid #222; font-family: Georgia, serif; }\n  .ph-spec-wrap table td { padding: 8px 12px; border-bottom: 1px solid #eee; vertical-align: top; }\n  .ph-spec-wrap table td:first-child { width: 42%; }\n  .ph-spec-wrap .ph-sec-hd td { font-weight: bold; font-size: 0.78em; text-transform: uppercase; letter-spacing: 0.05em; border-bottom: 1px solid #ddd; padding: 7px 12px; }\n  @media (max-width: 480px) {\n    .ph-spec-wrap table thead { display: none; }\n    .ph-spec-wrap table tr { display: block; margin-bottom: 12px; border: 1px solid #ddd; border-radius: 4px; overflow: hidden; }\n    .ph-spec-wrap .ph-sec-hd { display: block; }\n    .ph-spec-wrap .ph-sec-hd td { display: block; width: 100%; box-sizing: border-box; background: #f5f5f5; }\n    .ph-spec-wrap table td { display: block; width: 100% !important; box-sizing: border-box; border-bottom: 1px solid #eee; }\n    .ph-spec-wrap table td:first-child { font-weight: bold; background: #fafafa; }\n    .ph-spec-wrap table td:last-child { border-bottom: none; }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"ph-spec-wrap\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\n\u003ctr class=\"ph-sec-hd\"\u003e\u003ctd colspan=\"2\"\u003ePower Output\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStereo (8 ohm, both channels, 0.06% THD)\u003c\/td\u003e\n\u003ctd\u003e160W x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStereo (4 ohm, both channels, 0.06% THD)\u003c\/td\u003e\n\u003ctd\u003e240W x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStereo (8 ohm, both channels, 0.9% THD)\u003c\/td\u003e\n\u003ctd\u003e210W x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStereo (4 ohm, both channels, 0.9% THD)\u003c\/td\u003e\n\u003ctd\u003e300W x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBridged Mono (8 ohm, 0.06% THD)\u003c\/td\u003e\n\u003ctd\u003e500W x 1 (4 ohm bridged not recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBridged Mono (8 ohm, 0.9% THD)\u003c\/td\u003e\n\u003ctd\u003e600W x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Current per Channel\u003c\/td\u003e\n\u003ctd\u003e45 amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlew Rate\u003c\/td\u003e\n\u003ctd\u003eGreater than 130 V\/microsecond\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"ph-sec-hd\"\u003e\u003ctd colspan=\"2\"\u003eCircuit Design\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigner\u003c\/td\u003e\n\u003ctd\u003eJohn Curl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopology\u003c\/td\u003e\n\u003ctd\u003eHigh-bias Class A\/AB; JFET input, MOSFET driver, bipolar output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Path\u003c\/td\u003e\n\u003ctd\u003eDirect-coupled; no capacitors or inductors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Transistors\u003c\/td\u003e\n\u003ctd\u003e12 beta-matched 15A\/60MHz bipolar devices per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Load Impedance\u003c\/td\u003e\n\u003ctd\u003eStable below 2 ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"ph-sec-hd\"\u003e\u003ctd colspan=\"2\"\u003ePerformance\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e5Hz to 100kHz, plus 0 \/ minus 3dB; 20Hz to 20kHz, plus 0 \/ minus 0.25dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD at Full Power\u003c\/td\u003e\n\u003ctd\u003eLess than 0.06%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD at Typical Listening\u003c\/td\u003e\n\u003ctd\u003eLess than 0.03%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntermodulation Distortion\u003c\/td\u003e\n\u003ctd\u003eLess than 0.04%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR (A-weighted)\u003c\/td\u003e\n\u003ctd\u003eGreater than 112dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSNR (Unweighted)\u003c\/td\u003e\n\u003ctd\u003eGreater than 107dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping Factor\u003c\/td\u003e\n\u003ctd\u003eGreater than 800 at 20Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrosstalk at 1kHz\u003c\/td\u003e\n\u003ctd\u003eGreater than 85dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrosstalk at 20kHz\u003c\/td\u003e\n\u003ctd\u003eGreater than 70dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain\u003c\/td\u003e\n\u003ctd\u003e29dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"ph-sec-hd\"\u003e\u003ctd colspan=\"2\"\u003ePower Supply\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransformer\u003c\/td\u003e\n\u003ctd\u003e1 kVA shielded toroid; independent windings per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Capacitance (Output Stages)\u003c\/td\u003e\n\u003ctd\u003e54,400 microfarad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply Architecture\u003c\/td\u003e\n\u003ctd\u003eIndependent supplies for input, driver, and output stages\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRectifiers\u003c\/td\u003e\n\u003ctd\u003eHarris hyper-fast soft-recovery bridge diodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"ph-sec-hd\"\u003e\u003ctd colspan=\"2\"\u003eInputs and Outputs\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBalanced XLR Inputs\u003c\/td\u003e\n\u003ctd\u003e1 pair (discrete circuits)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRCA Inputs\u003c\/td\u003e\n\u003ctd\u003e1 pair (gold-plated) with loop outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeaker Binding Posts\u003c\/td\u003e\n\u003ctd\u003eHeavy-duty 24k gold-plated 5-way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Unbalanced)\u003c\/td\u003e\n\u003ctd\u003e33k ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance (Balanced)\u003c\/td\u003e\n\u003ctd\u003e66k ohm (33k ohm per leg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"ph-sec-hd\"\u003e\u003ctd colspan=\"2\"\u003eControl and Protection\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto Turn-on\u003c\/td\u003e\n\u003ctd\u003e12V trigger (+9 to +12 VDC, 5mA) or audio sensing (2-10mV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eDC servo, relay protection; AC inrush surge protection with relay bypass\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"ph-sec-hd\"\u003e\u003ctd colspan=\"2\"\u003ePower\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Mains Voltage\u003c\/td\u003e\n\u003ctd\u003e110-125 VAC 60Hz or 220-250 VAC 50Hz (selectable on rear panel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby\u003c\/td\u003e\n\u003ctd\u003eLess than 1W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIdle\u003c\/td\u003e\n\u003ctd\u003e75W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Listening\u003c\/td\u003e\n\u003ctd\u003e125W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum\u003c\/td\u003e\n\u003ctd\u003e800W\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr class=\"ph-sec-hd\"\u003e\u003ctd colspan=\"2\"\u003eGeneral\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e437 x 105 x 388 mm (with feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e14.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Finishes\u003c\/td\u003e\n\u003ctd\u003eBlack \/ Silver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis\u003c\/td\u003e\n\u003ctd\u003e2U; rear carry handles; rack mount hardware available separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Design\u003c\/td\u003e\n\u003ctd\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- END ProHiFi Product Description --\u003e","brand":"Parasound","offers":[{"title":"Default Title","offer_id":45215992283159,"sku":null,"price":406000.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0550\/6819\/6887\/files\/AVStore2_54ebba99-6325-4aef-9edc-a4ee81800740.webp?v=1781359404","url":"https:\/\/prohifi.in\/products\/parasound-halo-a-23-160w-stereo-power-amplifier-john-curl-bridgeable","provider":"ProHiFi India","version":"1.0","type":"link"}