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