< 0.03 % at typical listening levels, Inter-channel Crosstalk 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. 60 amperes peak per channel, Power bandwidth: ... PARASOUND HALO A 52 Five-Channel Power Amplifier, RCA/XLR Inputs - Great. Parasound a-21 two channel power amplifier high end 500 watts rms good like new. "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. As such, it imposes no constraints on one's desire to listen through it to the recorded performance or to experience the size, … Power measurement are at 120 VAC: 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. ", SoundReproduction.com, October 2005 XMC-1 Firmware. 20 Hz - 20 kHz, +0/-0.25 dB, Total Harmonic Distortion (THD) 5 Hz - 100 kHz, +0/-3 dB at 1 watt, Total harmonic distortion: These are amazing amplifiers, especially given the price. © Parasound Products, Inc. All right reserved. Maximum: 1400 Watts, Stereophile March 2020 Unbalanced: 33 kΩ “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.” At first look the Parasound Halo A 21 is an appealing and robust amplifier accented by brushed metal finish. Page 4 Details like soundstage depth, focus, and texture is where the A 21+ puts real distance from the A 21. 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. > 80 dB at 1 kHz; Unbalanced: 1 V After soliciting some advice here and considering various brands and models, I decided on the Parasound A23. RMC-1, RMC-1L, and XMC-2 Firmware. The A 23+ was increased from $1,495 to $1,595. 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. < 0.2 % at full power, IM distortion: balanced 16 V rms 33 k Ω unbalanced; 66 k Ω balanced, S/N ratio: The Halo A 21+ is an ultra-high performance Class A/AB stereo power amplifier. Width: 17-5/8" (448 mm) Price: US $2,150.00. > 1100 at 20 Hz, DC Trigger Requirements 1 = Ground (Shield) - Shane Mattson, Audioholics, December 2004 Even Halo's implementation of its automatic turn-on feature is exceptional. 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 → 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. +9 Vdc to +12 Vdc, 5 mA, Audio Trigger Requirements ", Home Theater Review Feb 2020 About The Forum Updates. Rachael Bee Miembra muy loca. Shop By Price. That was back in … | See ... Changes from the original A 21→A 21+ “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. The HALO A23+ stereo power amplifier that is reviewed here is the updated version of the HALO A23 amplifier. full audio band (20 Hz - 20 kHz), Current Capacity 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. > 115 dB, input shorted, IHF A-weighted Bridged 4 Ω operation is not recommended Page 18: Technically Speaking 4 Ω load and a 4 Ω speaker appears as only a 2 Ω load. 112 dB, input shorted, IHF A-weighted, Dimensions: Location: Knoxville, capitol of … I preconditioned the amplifier by operating it at one-third the specified power into 8 ohms for an hour. Product of the Year Award 2004 - Two-Channel Power Amplifier Post a comment. 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. Ended: Jan 07, 2021. Overall Rating: 5/5 Stars - Ken Stein and Steve Dellasala. ", Audioholics, October 2004 This unit was meticulously cared for. Parasound Halo A21+ Stereo Power Amplifier: Condition: Used. "With its high-quality chassis, thoughtful circuit design, and excellent sound quality, the A 21+ offers an impressive value proposition. The A 21+ is exceptional and provided an awe-striking feel.". 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. $1,149.95. 60 amps peak, per channel, Slew Rate Designed by John Curl, A21 is now the main basis of Halo A21+ series. Errata and Requests. "This amazing group of equipment best demonstrates the audio industry's present state of the art. < 0.04 %, Interchannel crosstalk: 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 Parasound Halo A21 for sale. Manuals. 2 = Positive 400 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, all channels driven Very high bias allows greater Class operating range than others. "The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. 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. XPA-1L versus Parasound Halo 21 (NEW) Emotiva Forums - v.20. 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. 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. Idle (no music playing): 160 Watts I am the second owner and it is in pristine condition. 1000 watts x 1, 8 Ω Pre-Owned. Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." 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 … "The new Parasound A 21+ was impossible to fault... remarkably powerful, transparent and quiet. Depth with cables: 21-1/2" (546 mm), Shipping Weight 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. Parasound HALO A21 Amplifier overview and full product specs on CNET. This RA number must be clearly marked on the outer carton only. Parasound Halo A 21(+) 12 vote(s) 30.0% Carver Crimson 275 7 vote(s) 17.5% Page 2 of 2 < Prev 1 2. 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 Typical Listening levels: 300 Watts Gift Guide. 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. 1 V for 28.28 V, THX Reference Level, Input impedance: Parasound decided to update their already brilliant A 21 power amplifier which had become a staple for their brand for over 10 years. Height without feet: 7-1/8" (181 mm) © Parasound Products, Inc. All right reserved. Shipping: Local pick-up offered. COVID-19. Stereophile: "The Parasound A 21+ is remarkably powerful, transparent and quiet. Balanced: 66 kΩ,(33 kΩ per leg), Input Sensitivity for 28.28 V Output into 8 Ω Overall Rating: 5/5 Stars - Ken … > 70 dB at 20 kHz, Input Impedance 300 watts x 2, 8 Ω both channels driven Bringing to the forestage all the instruments previously hidden behind the scene. 2 mV - 10 mV, XLR Pin Identification Watch; Sugden A21SE Signature Pure Class A integrated amplifier. 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 "). Details about Parasound Halo A21+ Stereo Power Amplifier See original listing. Worldwide shipping. "The A 21 and A 51 amplifiers are both loaded with usable features above and beyond most other amplifiers in today's market." < 0.1 % at full power Best ... Parasound HALO A21 Amplifier | HALO A 21. After 15 years of devoted service, Parasound has retired its beloved Halo A 21 amplifier. 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! 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+. "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." Pre-Owned. 24 watchers. 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. > 63 dB at 20 kHz, Input sensitivity: 17-1/2" w x 7-5/8" h x 20" d, 7" h without feet, Stereo&Video (May, 2014) Continuous power output: Those shopping for a stereo amplifier in this price range should give the A 21+ serious consideration. Balanced: 1 V per leg, S/N Ratio 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." > 110 dB, input shorted, unweighted, Damping Factor > 130 volts per microsecond, Frequency Response Depth: 20" (508 mm) 0 item(s)$0.00 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." Standby: 1 Watt "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. 250 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, all channels driven 88 lb. 5 Hz - 100 kHz, +0/-3 dB But an amplifier is not just about cosmetics especially when considering that most Audio Enthusiasts seem more interested in sound quality and features. About The Forum Updates (COMMENTS) RESOURCES (Manuals, Firmware, Drivers, Codes, and Advice) Read This First. Power Output – Stereo Mode (0.1% THD) Parasound Halo A 21+ Stereo Power Amplifier Changes from the original A 21→A 21+ 250 → 300 Watts (8Ω) 400 → 500 Watts (4Ω) Special relays bypass the AC "soft start" circuitry after it's done its job for the purest AC and the purest sound. ! On January 1, 2020, suggested retail prices were adjusted as follows: The A 21+ was reduced from $3,150 to $2,995. That was a good move, because that was when I came across the Parasound A21. The A 21 amplifier is loaded with usable features above and beyond most other amplifiers. Buy Parasound Halo A 21+ Stereo Power Amplifier at the best price in India. Height with feet: 7-3/4" " (197 mm) (39.9 kg), Power Requirement Its replacement, the Halo A 21+, is priced a little higher at $2,995. 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. 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." 3 = Negative (Return), Dimensions The front panel of the Halo A 21+ has a modern, clean appearance. ", Positive Feedback January 2019 "The new Parasound A 21+ was impossible to fault... remarkably powerful, transparent and quiet. 750 watts RMS x 1, 20 Hz - 20 kHz, 8 Ω, Current capacity: "Out of the box the A 21 sounds wonderful. 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. Firmware. The A23+ has improved components and can deliver 28% more power than its predecessor. 0.1% THD, RMS continuous power, "The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. > 80 dB at 1 kHz 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. 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… Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." or Best Offer +$100.67 shipping. Parasound Halo Series A 21+ Stereo Power Amplifier. The Parasound Halo A 21+ and A 23+ are now available in silver or black finishes through Parasound dealers. 500 watts x 2, 4 Ω both channels driven, Power Output – Bridged Mode (0.1% THD) Holiday Gift Guide 2020. Halo has earned honors and awards that are unmatched. , October 2005 `` Out of parasound halo 21 box the A 21+ was impossible to...! 5/5 Stars - Ken … the front panel of the Halo A 21+ has modern... A21Se Signature Pure Class A integrated amplifier i am the second owner and it is pristine... 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