"The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. It easily covers the high end and the base (without the need for separate amp to run the subwoofer) and moves smoothly along the musical spectrum. 24 watchers. > 1100 at 20 Hz, DC Trigger Requirements I preconditioned the amplifier by operating it at one-third the specified power into 8 ohms for an hour. Its replacement, the Halo A 21+, is priced a little higher at $2,995. That was back in … - Shane Mattson, Audioholics, December 2004 "The new Parasound A 21+ was impossible to fault... remarkably powerful, transparent and quiet. Height with feet: 7-3/4" " (197 mm) Balanced: 1 V per leg, S/N Ratio The Parasound Halo A 21+ improves on the already over-the-top amazing Halo A 21 via carefully thought-out performance upgrades for cleaner, ultra-low distortion sound, revised front panel cosmetics, and a revised rear panel layout offering enhanced features, too. or Best Offer +$100.67 shipping. Price: US $2,150.00. Bringing to the forestage all the instruments previously hidden behind the scene. Using the Parasound amp allowed my speakers to portray every aspect that I had come to expect without adding any noticeable sign of distortion or flaw." Height without feet: 7-1/8" (181 mm) 300 watts x 2, 8 Ω both channels driven 2 = Positive 0 item(s)$0.00 Rachael Bee Miembra muy loca. Parasound Halo A 21 Stereo Power Amplifier-Audio Advisor The Parasound Halo A21 Stereo Power Amplifier is a powerful two-channel AMP with 24k gold plated five-way speaker terminals that produces hair-raising music reproduction. Parasound Halo Series A 21+ Stereo Power Amplifier. ", Positive Feedback January 2019 Parasound Halo A21 for sale. "Out of the box the A 21 sounds wonderful. 60 amperes peak per channel, Power bandwidth: Depth: 20" (508 mm) > 115 dB, input shorted, IHF A-weighted The front panel of the Halo A 21+ has a modern, clean appearance. "The new Parasound A 21+ was impossible to fault... remarkably powerful, transparent and quiet. 17-1/2" w x 7-5/8" h x 20" d, 7" h without feet, Stereo&Video (May, 2014) "With the assortment of unbalanced and balanced inputs, triggered output, and ground lift option no stones were left unturned with this well built, attractive design. > 110 dB, input shorted, unweighted, Damping Factor "For those who desire the power of a Mack truck with the finesse of a Mercedes Benz in a two-channel amplifier, look no further than Parasound." © Parasound Products, Inc. All right reserved. 2 mV - 10 mV, XLR Pin Identification 750 watts RMS x 1, 20 Hz - 20 kHz, 8 Ω, Current capacity: ... PARASOUND HALO A 52 Five-Channel Power Amplifier, RCA/XLR Inputs - Great. Standby: 1 Watt 4u Chassis, carry handles, rack mounting adapter included, Circuitry designed by legendary John Curl, Balanced inputs with discrete circuits and XLR connectors, Direct Coupled - no capacitors or inductors in signal path, Complementary MOSFET driver stage and JFET input stage, 16 beta-matched 15 amp, 60 MHz bipolar output transistors, 1.2 kVA encapsulated toroid power transformer with independent secondary windings for each channel, 88,000 µF power supply filter capacitance, AC present, channel status, high temperature indicators, Heavy-duty 24k gold-plated 5-way speaker terminals, Gold-plated RCA input jacks; ground lift switch, Auto turn-on by 12v trigger or audio signal, 12v trigger out. < 0.03 % at typical listening levels, Inter-channel Crosstalk Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." "The A 21+ represents a new unparalleled value in amplifier performance. Page 18: Technically Speaking 4 Ω load and a 4 Ω speaker appears as only a 2 Ω load. Refined Halo cosmetic with aluminum end caps & gold highlights, Updated rear panel with heavy duty speaker terminals from JC 5, Upgraded internal gold on gold audio connections, 300 watts x 2 @ 8 Ω RMS, both channels driven, 500 watts x 2 @ 4 Ω RMS, both channels driven, Circuitry designed by legendary John Curl, Stable with speaker impedance dips to 1.5 Ω, CHK Infinium, custom 5-way speaker binding posts, Gold-plated RCA input & loop output jacks, Direct-coupled signal path, no capacitors or inductors, AC turn-on inrush surge protection with relay bypass, 16 beta-matched 15 ampere, 60 MHz bipolar output transistors, 1.3 kVA shielded toroid transformer w/ independent windings for each channel, Independent power supplies for input stage, driver stage and output stage, 108,000 µF filter capacitors for output stages, Full power is rated all the way down to 5Hz for unrestricted low-end bass, Harris hyper-fast soft-recovery bridge diode rectifiers, Automatic turn-on by 12 V trigger or audio sensing, 4 rack space chassis with rear carry handles. This unit was meticulously cared for. Parasound decided to update their already brilliant A 21 power amplifier which had become a staple for their brand for over 10 years. Stereophile: "The Parasound A 21+ is remarkably powerful, transparent and quiet. I am the second owner and it is in pristine condition. Details like soundstage depth, focus, and texture is where the A 21+ puts real distance from the A 21. Overall Rating: 5/5 Stars - Ken Stein and Steve Dellasala. Parasound Halo Integrated, Pioneer SC-LX 901, Oppo-205, Revel F208 + Heco Aurora Center 30 + Heco Victa Prime 202, Takstar HF 580 pma Addicted to Fun and Learning The A23+ has improved components and can deliver 28% more power than its predecessor. But an amplifier is not just about cosmetics especially when considering that most Audio Enthusiasts seem more interested in sound quality and features. < 0.1 % at full power 400 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, all channels driven 5 Hz - 100 kHz, +0/-3 dB at 1 watt, Total harmonic distortion: Anyone in the market for a stereo power amp would be well advised to consider the Parasound A 21+, especially those who believe that they must spend more." Anyone in the market for a stereo power amp would be well advised to consider the Parasound A 21+, especially those who believe that they must spend more. "The A 21 and A 51 amplifiers are both loaded with usable features above and beyond most other amplifiers in today's market." The Parasound Halo A 21+ and A 23+ are now available in silver or black finishes through Parasound dealers. 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