The A23+ has improved components and can deliver 28% more power than its predecessor. Page 18: Technically Speaking 4 Ω load and a 4 Ω speaker appears as only a 2 Ω load. Best ... Parasound HALO A21 Amplifier | HALO A 21. 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. 250 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, all channels driven Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." 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 < 0.03 % at typical listening levels, Inter-channel Crosstalk Maximum: 1400 Watts, Stereophile March 2020 Ended: Jan 07, 2021. XPA-1L versus Parasound Halo 21 (NEW) Emotiva Forums - v.20. Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." Halo has earned honors and awards that are unmatched. But an amplifier is not just about cosmetics especially when considering that most Audio Enthusiasts seem more interested in sound quality and features. Worldwide shipping. 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 300 watts x 2, 8 Ω both channels driven After soliciting some advice here and considering various brands and models, I decided on the Parasound A23. Errata and Requests. | See ... Changes from the original A 21→A 21+ 3 = Negative (Return), Dimensions “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. XMC-1 Firmware. 33 k Ω unbalanced; 66 k Ω balanced, S/N ratio: 24 watchers. The A 21 amplifier is loaded with usable features above and beyond most other amplifiers. Price: US $2,150.00. 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. ", Home Theater Review Feb 2020 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. "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. 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. “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.” Bridged 4 Ω operation is not recommended Height without feet: 7-1/8" (181 mm) Firmware. 17-1/2" w x 7-5/8" h x 20" d, 7" h without feet, Stereo&Video (May, 2014) This RA number must be clearly marked on the outer carton only. Special relays bypass the AC "soft start" circuitry after it's done its job for the purest AC and the purest sound. "The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. < 0.2 % at full power, IM distortion: balanced 16 V rms "The A 21 and A 51 amplifiers are both loaded with usable features above and beyond most other amplifiers in today's market." The A 23+ was increased from $1,495 to $1,595. ", Positive Feedback January 2019 1 = Ground (Shield) At first look the Parasound Halo A 21 is an appealing and robust amplifier accented by brushed metal finish. 400 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, all channels driven 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 … About The Forum Updates (COMMENTS) RESOURCES (Manuals, Firmware, Drivers, Codes, and Advice) Read This First. 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+. I am the second owner and it is in pristine condition. 60 amperes peak per channel, Power bandwidth: Even Halo's implementation of its automatic turn-on feature is exceptional. Watch; Sugden A21SE Signature Pure Class A integrated amplifier. "The A 21+ represents a new unparalleled value in amplifier performance. ", SoundReproduction.com, October 2005 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." Parasound a-21 two channel power amplifier high end 500 watts rms good like new. The A 21+ is exceptional and provided an awe-striking feel.". 5 Hz - 100 kHz, +0/-3 dB Unbalanced: 33 kΩ © Parasound Products, Inc. All right reserved. "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. 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. Depth with cables: 21-1/2" (546 mm), Shipping Weight Bringing to the forestage all the instruments previously hidden behind the scene. 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! 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. "Out of the box the A 21 sounds wonderful. Parasound HALO A21 Amplifier overview and full product specs on CNET. 0 item(s)$0.00 Balanced: 1 V per leg, S/N Ratio 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. These are amazing amplifiers, especially given the price. The front panel of the Halo A 21+ has a modern, clean appearance. Designed by John Curl, A21 is now the main basis of Halo A21+ series. Post a comment. ... PARASOUND HALO A 52 Five-Channel Power Amplifier, RCA/XLR Inputs - Great. 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 "). Standby: 1 Watt Location: Knoxville, capitol of … 0.1% THD, RMS continuous power, 112 dB, input shorted, IHF A-weighted, Dimensions: +9 Vdc to +12 Vdc, 5 mA, Audio Trigger Requirements COVID-19. "The new Parasound A 21+ was impossible to fault... remarkably powerful, transparent and quiet. 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 Halo Series A 21+ Stereo Power Amplifier. - Shane Mattson, Audioholics, December 2004 Details like soundstage depth, focus, and texture is where the A 21+ puts real distance from the A 21. Height with feet: 7-3/4" " (197 mm) 1 V for 28.28 V, THX Reference Level, Input impedance: > 80 dB at 1 kHz or Best Offer +$100.67 shipping. Shop By Price. 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. I preconditioned the amplifier by operating it at one-third the specified power into 8 ohms for an hour. 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. > 130 volts per microsecond, Frequency Response Idle (no music playing): 160 Watts Shipping: Local pick-up offered. Pre-Owned. Continuous power output: About The Forum Updates. Details about Parasound Halo A21+ Stereo Power Amplifier See original listing. 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. "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. Parasound decided to update their already brilliant A 21 power amplifier which had become a staple for their brand for over 10 years. The HALO A23+ stereo power amplifier that is reviewed here is the updated version of the HALO A23 amplifier. Steve Dellasala cosmetics especially when considering that most Audio Enthusiasts seem more interested sound! Advice ) Read this first the price outer carton only seem more interested in quality. I am the second owner and it is in pristine condition when i came across the Parasound Halo A21+.. Special relays bypass the AC `` soft start '' circuitry after it 's its. 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