{"product_id":"parasound-a23-power-amplifier","title":"Parasound A23+ Power Amplifier","description":"\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp class=\"p1\"\u003eParasound's A23+ power amplifier brings studio-level amplification into your listening room. This amplifier delivers clarity, depth, and control that defies its compact size. Co\u003cspan class=\"s1\"\u003e‑\u003c\/span\u003edesigned by legendary engineer John Curl, it features a dual-mono Class A\/AB architecture with independent transformers per channel. With 160 W per channel into 8 Ω (240 W into 4 Ω) and bridgeable to 500 W, along with balanced XLR and gold-plated RCA inputs, the A23+ integrates seamlessly into stereo or home theater systems. \u003c\/p\u003e\n\u003cp class=\"p1\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch4\u003eFeatures \u0026amp; Specifications:\u003c\/h4\u003e\n\u003cdiv id=\"grid\"\u003e\n\u003csection class=\"triple-item\"\u003e\n\u003cdiv class=\"model-info Features2\"\u003e\n\u003ch5\u003eChanges from the original A 23→A 23+\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e125 → 160 Watts (8Ω)\u003c\/li\u003e\n\u003cli\u003e225 → 240 Watts (4Ω)\u003c\/li\u003e\n\u003cli\u003e400 → 500 Watts (bridged)\u003c\/li\u003e\n\u003cli\u003eFilter cap: 40,000 uF →54,400 uF\u003c\/li\u003e\n\u003cli\u003eCrosstalk (20kHz): 63dB → 70dB\u003c\/li\u003e\n\u003cli\u003eTransformer size: 1.0 kVA → 1.1 kVA\u003c\/li\u003e\n\u003cli\u003eRefined Halo cosmetic with aluminum end caps \u0026amp; gold highlights\u003c\/li\u003e\n\u003cli\u003eUpdated rear panel with heavy duty speaker terminals from HINT 6\u003c\/li\u003e\n\u003cli\u003eUpgraded internal gold on gold audio connections\u003c\/li\u003e\n\u003cli\u003eUpdated auto turn on circuit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAll Features:\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e160 watts x 2 @ 8 Ω RMS, both channels driven\u003c\/li\u003e\n\u003cli\u003e240 watts x 2 @ 4 Ω RMS, both channels driven\u003c\/li\u003e\n\u003cli\u003e500 watts x 1 @ 8 Ω, in bridged mode\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\u003e45 amperes peak current per channel\u003c\/li\u003e\n\u003cli\u003eStable with speaker impedance dips below 2 Ω\u003c\/li\u003e\n\u003cli\u003eBalanced inputs with discrete circuits\u003c\/li\u003e\n\u003cli\u003eHeavy-duty 24k gold-plated 5-way speaker binding posts\u003c\/li\u003e\n\u003cli\u003eGold-plated RCA input \u0026amp; loop output jacks\u003c\/li\u003e\n\u003cli\u003eDirect-coupled signal path, no capacitors or inductors\u003c\/li\u003e\n\u003cli\u003eDC Servo and relay protection circuits\u003c\/li\u003e\n\u003cli\u003eAC turn-on inrush surge protection with relay bypass\u003c\/li\u003e\n\u003cli\u003eJFET input stage, MOSFET driver stage\u003c\/li\u003e\n\u003cli\u003e12 beta-matched 15 ampere, 60 MHz bipolar output transistors\u003c\/li\u003e\n\u003cli\u003e1.1 kVA shielded toroid transformer w\/ independent windings for each channel\u003c\/li\u003e\n\u003cli\u003eIndependent power supplies for input stage, driver stage and output stage\u003c\/li\u003e\n\u003cli\u003e54,400 µF filter capacitors for output stages\u003c\/li\u003e\n\u003cli\u003eFull power is rated all the way down to 5Hz for unrestricted low-end bass\u003c\/li\u003e\n\u003cli\u003eHarris hyper-fast soft-recovery bridge diode rectifiers\u003c\/li\u003e\n\u003cli\u003eAutomatic turn-on by 12 V trigger or audio sensing\u003c\/li\u003e\n\u003cli\u003e2 rack space chassis with rear carry handles\u003c\/li\u003e\n\u003cli\u003eRack mount hardware available separately\u003c\/li\u003e\n\u003cli\u003eAvailable in silver or black\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Output – Stereo Mode (0.06% THD)\u003c\/b\u003e\u003cbr\u003e160 watts x 2, 8 Ω both channels driven\u003cbr\u003e240 watts x 2, 4 Ω both channels driven\u003cb\u003ePower Output – Stereo Mode (0.9% THD)\u003c\/b\u003e\u003cbr\u003e210 watts x 2, 8 Ω both channels driven\u003cbr\u003e300 watts x 2, 4 Ω both channels driven\u003cb\u003ePower Output – Bridged Mode (0.06% THD)\u003c\/b\u003e\u003cbr\u003e500 watts x 1, 8 Ω\u003cbr\u003eBridged 4 Ω operation is not recommended\u003cb\u003ePower Output – Bridged Mode (0.9% THD)\u003c\/b\u003e\u003cbr\u003e600 watts x 1, 8 Ω\u003cbr\u003eBridged 4 Ω operation is not recommended\u003ci\u003e*All Power measurement are at 120 VAC,\u003cbr\u003eRMS continuous power, full audio band (20 Hz – 20 kHz)\u003c\/i\u003e\u003cb\u003eCurrent Capacity\u003c\/b\u003e\u003cbr\u003e45 amps peak, per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSlew Rate\u003c\/b\u003e\u003cbr\u003e\u0026gt; 130 volts per microsecond\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFrequency Response\u003c\/b\u003e\u003cbr\u003e5 Hz – 100 kHz, +0\/-3 dB\u003cbr\u003e20 Hz – 20 kHz, +0\/-0.25 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTotal Harmonic Distortion (THD)\u003c\/b\u003e\u003cbr\u003e\u0026lt; 0.06 % at full power\u003cbr\u003e\u0026lt; 0.03 % at typical listening levels\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIM Distortion\u003c\/b\u003e\u003cbr\u003e\u0026lt; 0.04 %\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTIM\u003c\/b\u003e\u003cbr\u003eUnmeasurable\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInter-channel Crosstalk\u003c\/b\u003e\u003cbr\u003e\u0026gt; 85 dB at 1 kHz\u003cbr\u003e\u0026gt; 70 dB at 20 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Impedance\u003c\/b\u003e\u003cbr\u003eUnbalanced: 33 kΩ\u003cbr\u003eBalanced: 66 kΩ,(33 kΩ per leg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTotal Gain\u003c\/b\u003e\u003cbr\u003e29 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Sensitivity for 28.28 V Out (8 Ω Load)\u003c\/b\u003e\u003cbr\u003eUnbalanced: 1 V\u003cbr\u003eBalanced: 1 V per leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eS\/N Ratio\u003c\/b\u003e\u003cbr\u003e\u0026gt; 112 dB, input shorted, IHF A-weighted\u003cbr\u003e\u0026gt; 107 dB, input shorted, unweighted\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDamping Factor\u003c\/b\u003e\u003cbr\u003e\u0026gt; 800 at 20 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDC Trigger Requirements\u003c\/b\u003e\u003cbr\u003e+9 Vdc to +12 Vdc, 5 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAudio Trigger Requirements\u003c\/b\u003e\u003cbr\u003e2 mV – 10 mV\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eXLR Pin Identification\u003c\/b\u003e\u003cbr\u003e1 = Ground (Shield)\u003cbr\u003e2 = Positive\u003cbr\u003e3 = Negative (Return)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions\u003c\/b\u003e\u003cbr\u003eWidth: 17-1\/4″ (437 mm)\u003cbr\u003eDepth: 15″-1\/4″ (388 mm)\u003cbr\u003eDepth, with cables 17″ (432 mm)\u003cbr\u003eHeight, with feet: 4-1\/8″ (105 mm)\u003cbr\u003eHeight, without feet: 3-1\/2″ (89 mm), 2U\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNet Weight\u003c\/b\u003e\u003cbr\u003e27 lb. (12.2 kg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eShipping Weight\u003c\/b\u003e\u003cbr\u003e34 lb. (14.4 kg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower Requirement\u003c\/b\u003e\u003cbr\u003eStandby: \u0026lt;1 Watt\u003cbr\u003eIdle (no music playing): 75 Watts\u003cbr\u003eTypical Listening levels: 125 Watts\u003cbr\u003eMaximum: 800 Watts\u003cbr\u003e110-125 VAC 60 Hz or 220-250 VAC 50 Hz\u003cbr\u003e\u003ci\u003eAC mains voltage is set on rear panel\u003c\/i\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Parasound","offers":[{"title":"Black","offer_id":47816332738801,"sku":null,"price":3680.0,"currency_code":"CAD","in_stock":true},{"title":"Silver","offer_id":47816332771569,"sku":null,"price":3680.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0942\/5024\/files\/Parasound-HaloA23_-front-noteworthyaudio-1000x.jpg?v=1771515899","url":"https:\/\/www.noteworthyaudio.com\/products\/parasound-a23-power-amplifier","provider":"Noteworthy Audio","version":"1.0","type":"link"}