{"product_id":"parasound-halo-series-a-51-power-amplifier-400w-x-5-channels","title":"Parasound Halo Series A 51 Power Amplifier | 400W x 5 Channels","description":"\u003ch2\u003eParasound Halo Series A 51 Power Amplifier | 400W x 5 Channels\u003c\/h2\u003e\u003cp\u003eThe Parasound Halo A 51 is a five-channel power amplifier built for high-performance home theater systems requiring substantial power across all channels simultaneously. Fitted in a 4U chassis measuring 17.25 by 5.25 by 20 inches and weighing 55 lbs net, it outputs 180 watts RMS per channel into 8 ohms and 255 watts RMS per channel into 4 ohms with all five channels driven. It is well suited to anchor a surround sound system around demanding multi-channel speaker arrays.\u003c\/p\u003e\u003cp\u003eThe amplifier supplies 45 amps peak current per channel and maintains total harmonic distortion at 0.05 percent RMS continuous across the full audio band. Frequency response extends from 5 Hz to 100 kHz within 3 dB. Signal-to-noise ratio exceeds 112 dB IHF A-weighted. Both balanced XLR and unbalanced inputs are accepted with a 29 dB gain stage. Standby power draw is 1 watt, rising to a maximum of 1,500 watts at full output. An external trigger accepts 9-12 Vdc.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e180W RMS x 5 into 8 ohms, all channels driven\u003c\/li\u003e\n\u003cli\u003e255W RMS x 5 into 4 ohms, all channels driven\u003c\/li\u003e\n\u003cli\u003e45 amps peak current per channel\u003c\/li\u003e\n\u003cli\u003eTHD 0.05% RMS continuous, full audio band\u003c\/li\u003e\n\u003cli\u003eSNR greater than 112 dB, IHF A-weighted\u003c\/li\u003e\n\u003cli\u003eBalanced XLR and unbalanced inputs\u003c\/li\u003e\n\u003cli\u003e4U chassis, net weight 55 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRack Spacing:\u003c\/strong\u003e 4U\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 5-Channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatts Per Channel:\u003c\/strong\u003e 201-300W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Output @ 8 ohm:\u003c\/strong\u003e 180W RMS x 5, 20 Hz - 20 kHz, 8 Ω, all channels driven\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Output @ 4 ohm:\u003c\/strong\u003e 255W RMS x 5, 20 Hz - 20 kHz, 4 Ω, all channels driven\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Output Bridged @ 8 ohm:\u003c\/strong\u003e n\/a\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e Standby: 1W Idle: 125W Maximum: 1500W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 45 amps peak, per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Harmonic Distortion (THD):\u003c\/strong\u003e 0.05% THD, RMS continuous power, full audio band (20 Hz - 20 kHz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower RMS:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 5 Hz - 100 kHz, +0\/-3 dB 20 Hz - 20 kHz, +0\/-0.3 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Crosstalk:\u003c\/strong\u003e \u0026gt; 78 dB at 1 kHz \u0026gt; 63 dB at 20 kHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance Input:\u003c\/strong\u003e Unbalanced: 47 kΩ Balanced: 94 kΩ, 47 kΩ per leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAudio Gain:\u003c\/strong\u003e 29 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensitivity Input:\u003c\/strong\u003e Unbalanced: 1 V Balanced: 1 V per leg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal to Noise Ratio:\u003c\/strong\u003e \u0026gt; 112 dB, input shorted, IHF A-weighted \u0026gt; 102 dB, input shorted, unweigh\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmplifier Requirements:\u003c\/strong\u003e Audio Trigger: 2 mV - 10 mV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Trigger Voltage:\u003c\/strong\u003e +9 Vdc to +12 Vdc, 2 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectors:\u003c\/strong\u003e XLR Pin Identification 1 = Ground (Shield) 2 = Positive 3 = Negative (Return)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W x H x D):\u003c\/strong\u003e 17.25\" x 5.25\" x 20\" (437 x 133 x 508mm) (without feet)17.25\" x 5.88\" x 20\" (437 x 149 x 508mm) (with feet) Depth with cables: 21.25\" (540mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Net Weight: 55 lbs (25 kg)Shipping Weight: 69 lbs (31.3 kg)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Parasound","offers":[{"title":"Default Title","offer_id":46346890444997,"sku":"PARA-A51","price":5000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/3085\/3829\/files\/A51_20angle_20black-f.jpg?v=1781125754","url":"https:\/\/avlgear.com\/products\/parasound-halo-series-a-51-power-amplifier-400w-x-5-channels","provider":"AVLGEAR","version":"1.0","type":"link"}