COVID-19. With 160 W per channel into 8-ohm and 240 W per channel into 4-ohm loads, this is a beefier amplifier than its slim look suggests. Idle (no music playing): 160 Watts 33 k Ω unbalanced; 66 k Ω balanced, S/N ratio: Holiday Gift Guide 2020. Shop By Price. ", SoundReproduction.com, October 2005 Parasound Halo A 21(+) 12 vote(s) 30.0% Carver Crimson 275 7 vote(s) 17.5% Page 2 of 2 < Prev 1 2. > 80 dB at 1 kHz; 300 watts x 2, 8 Ω both channels driven The front panel of the Halo A 21+ has a modern, clean appearance. The A23+ has improved components and can deliver 28% more power than its predecessor. The Halo A 21+ is an ultra-high performance Class A/AB stereo power amplifier. This RA number must be clearly marked on the outer carton only. "With its high-quality chassis, thoughtful circuit design, and excellent sound quality, the A 21+ offers an impressive value proposition. That was back in … 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 At first look the Parasound Halo A 21 and A 51 are appealing and robust amplifiers accented by brushed metal finish and a "Halo" aqua blue light around the power button. As such, it imposes no constraints on one's desire to listen through it to the recorded performance or to experience the size, … < 0.2 % at full power, IM distortion: balanced 16 V rms 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. "The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. I’m not going to kid you: In spite of family resemblances, the Parasound Halo A 21 is not as “good” as either of the two ten-to-twenty-times-moreexpensive Class AB super-amps. "The A 21+ represents a new unparalleled value in amplifier performance. Parasound HALO A21 Amplifier overview and full product specs on CNET. > 130 volts per microsecond, Frequency Response > 63 dB at 20 kHz, Input sensitivity: Continuous power output: Standby: 1 Watt About The Forum Updates (COMMENTS) RESOURCES (Manuals, Firmware, Drivers, Codes, and Advice) Read This First. Maximum: 1400 Watts, Stereophile March 2020 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. Parasound has chosen to take a staple core product that has remained an exceptional value for over fifteen years, the Halo A21 amplifier, and re-spin it into the Halo A21+. Best ... Parasound HALO A21 Amplifier | HALO A 21. © Parasound Products, Inc. All right reserved. 17-1/2" w x 7-5/8" h x 20" d, 7" h without feet, Stereo&Video (May, 2014) 112 dB, input shorted, IHF A-weighted, Dimensions: Parasound Halo A21+ Stereo Power Amplifier Changes from the original A 21→A 21+ 250 → 300 Watts (8Ω) 400 → 500 Watts (4Ω) 750 → 1000 Watts (bridged) Filter cap: 88,000 uF → 108,000 uF S/N: 112dB → 115 dB THD (at full power): 0.2% → 0.1% Crosstalk (20kHz): 63dB → 70dB Transformer size: 1.2 kVA → 1.3 kVA Weight: 60 LB → Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." Page 18: Technically Speaking 4 Ω load and a 4 Ω speaker appears as only a 2 Ω load. Halo is Parasound’s premier line with a reputation for going head-to-head with the most expensive equipment on the market, while costing a fraction of the price. Typical Listening levels: 300 Watts Product of the Year Award 2004 - Two-Channel Power Amplifier Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." 5 Hz - 100 kHz, +0/-3 dB "The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. > 110 dB, input shorted, unweighted, Damping Factor "Out of the box the A 21 sounds wonderful. Details like soundstage depth, focus, and texture is where the A 21+ puts real distance from the A 21. +9 Vdc to +12 Vdc, 5 mA, Audio Trigger Requirements 400 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, all channels driven Manuals. ", Audioholics, October 2004 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." Power Output – Stereo Mode (0.1% THD) “Doing so has proved that extremely high performance-per-dollar is still possible today when a company leverages decades of experience, and is spearheaded by a legend.” Procedure for Returning Your A 21 to Parasound for Service If Parasound determines that you should send your A 21 to Parasound, you will be given a Return Authorization (RA) number. Those shopping for a stereo amplifier in this price range should give the A 21+ serious consideration. Pre-Owned. Pre-Owned. Post a comment. Unbalanced: 33 kΩ Overall Rating: 5/5 Stars - Ken Stein and Steve Dellasala. 500 watts x 2, 4 Ω both channels driven, Power Output – Bridged Mode (0.1% THD) I am acquainted with Parasound, as my first audiophile quality CD player was a Parasound CDP-1000, and later I bought a Parasound DAC-1500 to upgrade the overall source quality. "This amazing group of equipment best demonstrates the audio industry's present state of the art. 1000 watts x 1, 8 Ω 88 lb. "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. > 80 dB at 1 kHz l bought the Parasound halo a21 and the differences of improvement in the sound quality are just unreal, it's like too good to be true, before the parasound i had an Emotiva XPA and after listened to the differences btw the emo and the parasound i got to the conclusion that emotiva made my speakers sounded so bad, the sound quality is night and day differences, I'm was shocked! $1,149.95. Location: Knoxville, capitol of … ", Positive Feedback January 2019 Parasound Halo A 23 Amplifiers DESCRIPTION 125W x 2 into 8 ohms, 200W x 2 into 4 ohms, 400W x 1 into 8 ohms, high bias Class A/AB amplification, MOSFET driver stage, JFET input stage, balanced XLR inputs, no capacitors or inductors in signal path, rear mounted gain controls, ground lift switch. < 0.04 %, Interchannel crosstalk: 0.1% THD, RMS continuous power, 2 mV - 10 mV, XLR Pin Identification Shipping: Local pick-up offered. Worldwide shipping. 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. RMC-1, RMC-1L, and XMC-2 Firmware. Very high bias allows greater Class operating range than others. Height without feet: 7-1/8" (181 mm) 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." Halo has earned honors and awards that are unmatched. Gift Guide. 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. Height with feet: 7-3/4" " (197 mm) "The new Parasound A 21+ was impossible to fault... remarkably powerful, transparent and quiet. Ended: Jan 07, 2021. 1 V for 28.28 V, THX Reference Level, Input impedance: "I cranked the volume way up and found myself free of that inhibiting audio alarm in my head that nags at me to turn it back down. Buy Parasound Halo A 21+ Stereo Power Amplifier at the best price in India. The HALO A23+ stereo power amplifier that is reviewed here is the updated version of the HALO A23 amplifier. Doing so has proved that extremely high performance-per-dollar is still possible today when a company leverages decades of experience, and is spearheaded by a legend… 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. Overall Rating: 5/5 Stars - Ken … 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. Designed by John Curl, A21 is now the main basis of Halo A21+ series. 5 Hz - 100 kHz, +0/-3 dB at 1 watt, Total harmonic distortion: I preconditioned the amplifier by operating it at one-third the specified power into 8 ohms for an hour. What the A 21 is is a very fine amplifier at an exceptionally fair price—more lifelike, I think, than much of its more expensive Class D … With the assistance of legendary Audio Designer John Curl, they’ve created a beautiful and powerful successor to the A21, The A21+ stereo power amplifier. There's a single On/Off button to the lower left, a high-temperature indicator to the lower right, and two small, blue LEDs between them: the indicator lights for the left and right channels. "The new Parasound A 21+ was impossible to fault... remarkably powerful, transparent and quiet. < 0.03 % at typical listening levels, Inter-channel Crosstalk On January 1, 2020, suggested retail prices were adjusted as follows: The A 21+ was reduced from $3,150 to $2,995. Its replacement, the Halo A 21+, is priced a little higher at $2,995. Unbalanced: 1 V Like all the other amps in the Halo product series, the A21 has Parasound's exclusive bias circuit, which permits the amplifier to sound perfect from the instant it's turned on, rather than having to wait for bias to gradually build up as the amp warms up over time. I am the second owner and it is in pristine condition. full audio band (20 Hz - 20 kHz), Current Capacity These are amazing amplifiers, especially given the price. "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." The A 21 amplifier is loaded with usable features above and beyond most other amplifiers. Special relays bypass the AC "soft start" circuitry after it's done its job for the purest AC and the purest sound. Some Features of the new A 21+ Power Amplifier from Halo by Parasound; 300 watts x 2 @ 8 Ω RMS,in bridged modeCircuitry designed by legendary John Curl, High bias Class A/AB operation 60 amperes peak current per channel, Stable with speaker impedance dips to 1.5 ΩBalanced inputs with discrete circuitsCHK Infinium, custom 5-way speaker binding postsGold-plated RCA input & loop output jacks This unit was meticulously cared for. After soliciting some advice here and considering various brands and models, I decided on the Parasound A23. About The Forum Updates. - Shane Mattson, Audioholics, December 2004 Page 4 Parasound Halo A 21+ power amplifier Measurements Sidebar 3: Measurements I tested the Parasound Halo A 21+ with my Audio Precision SYS2722 system (see the January 2008 " As We See It "). "The A 21 and A 51 amplifiers are both loaded with usable features above and beyond most other amplifiers in today's market." > 70 dB at 20 kHz, Input Impedance Bringing to the forestage all the instruments previously hidden behind the scene. | See ... Changes from the original A 21→A 21+ Watch; Sugden A21SE Signature Pure Class A integrated amplifier. Firmware. Balanced: 1 V per leg, S/N Ratio 1 = Ground (Shield) 2 = Positive Stereophile: "The Parasound A 21+ is remarkably powerful, transparent and quiet. XMC-1 Firmware. That was a good move, because that was when I came across the Parasound A21. The A 21+ is exceptional and provided an awe-striking feel.". The A 23+ was increased from $1,495 to $1,595. Parasound Halo Series A 21+ Stereo Power Amplifier. XPA-1L versus Parasound Halo 21 (NEW) Emotiva Forums - v.20. I sampled several Red Book CD's of different recording quality and musical genera's and quickly came to the realization that the A 21 was indeed a very special amplifier, and I could not wait to begin the serious evaluation after burn-in." Width: 17-5/8" (448 mm) > 1100 at 20 Hz, DC Trigger Requirements Bridged 4 Ω operation is not recommended “Parasound has chosen to take a staple core product that has remained an exceptional value for over fifteen years, the Halo A21 amplifier, and re-spin it into the Halo A21+,” reports Michael Zisserson at positive-feedback.com. 750 watts RMS x 1, 20 Hz - 20 kHz, 8 Ω, Current capacity: 24 watchers. Parasound Halo A 21+ Stereo Power Amplifier Changes from the original A 21→A 21+ 250 → 300 Watts (8Ω) 400 → 500 Watts (4Ω) 20 Hz - 20 kHz, +0/-0.25 dB, Total Harmonic Distortion (THD) Details about Parasound Halo A21+ Stereo Power Amplifier See original listing. ", Home Theater Review Feb 2020 Parasound Halo A21 for sale. The Parasound Halo A 21+ and A 23+ are now available in silver or black finishes through Parasound dealers. Parasound a-21 two channel power amplifier high end 500 watts rms good like new. 3 = Negative (Return), Dimensions © Parasound Products, Inc. All right reserved. 250 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, all channels driven Even Halo's implementation of its automatic turn-on feature is exceptional. At first look the Parasound Halo A 21 is an appealing and robust amplifier accented by brushed metal finish. ... PARASOUND HALO A 52 Five-Channel Power Amplifier, RCA/XLR Inputs - Great. 0 item(s)$0.00 Errata and Requests. Parasound Halo A21+ Stereo Power Amplifier: Condition: Used. After 15 years of devoted service, Parasound has retired its beloved Halo A 21 amplifier. Depth with cables: 21-1/2" (546 mm), Shipping Weight Balanced: 66 kΩ,(33 kΩ per leg), Input Sensitivity for 28.28 V Output into 8 Ω 60 amps peak, per channel, Slew Rate 60 amperes peak per channel, Power bandwidth: (39.9 kg), Power Requirement ! Parasound decided to update their already brilliant A 21 power amplifier which had become a staple for their brand for over 10 years. > 115 dB, input shorted, IHF A-weighted or Best Offer +$100.67 shipping. Rachael Bee Miembra muy loca. Parasound Halo A23 Stereo Amplifier Review In light of our slow shift toward two channel audio (no, we are not abandoning personal audio), I decided it would be a good idea to start with something basic, like a stereo amplifier. Price: US $2,150.00. But an amplifier is not just about cosmetics especially when considering that most Audio Enthusiasts seem more interested in sound quality and features. 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