While I would like to buy the jc1 monoblocks they take up a ton of space. trigger, RCA x 2, Standby: 1 Watt Complementary MOSFET driver stage and JFET input stage. Be respectful, keep it civil and stay on topic. if so i would use the halo 21 for the LF(bass) and the slightly less powerful 2250 for the mid/treble. > 80 dB at 1 kHz The A 21+ is exceptional and provided an awe-striking feel.". Balanced: 66 kΩ,(33 kΩ per leg), Input Sensitivity for 28.28 V Output into 8 Ω Details like soundstage depth, focus, and texture is where the A 21+ puts real distance from the A 21. 88,000 µF power supply filter capacitance. I have read very good things about that amp and am very happy with the A51 I … "Highly Suitable for Driving Anything" 125 Watt, 225 Watt, 400 Watt. Amplifier Output Details. Parasound and John Curl, their primary design consultant for the past 30 years, targeted power supply transformers and filter capacitors as the foundation for power output increases. audio line-out, +9 Vdc to +12 Vdc, 5 mA, Audio Trigger Requirements Those shopping for a stereo amplifier in this price range should give the A 21+ serious consideration. "The new Parasound A 21+ was impossible to fault... remarkably powerful, transparent and quiet. This is helpful for those of us who employ "gain staging" to minimize overall system output noise and who wish to … parts, 10 years, 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+. - Parasound Halo A21 - Wyred4Sound ST-500 MKii with wire/post upgrade - Odyssey Audio Stratos Extreme - Odyssey Audio Kismet - Benchmark AHB2 amp First choice is Parasound Halo A21. > 1100 at 20 Hz, DC Trigger Requirements ", Home Theater Review Feb 2020 Halo A21 Two-Channel Amplifier. full audio band (20 Hz - 20 kHz), Current Capacity 4 Ohm, 8 Ohm. Halo is our 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. banana/spade x 2, labor, 0.1% THD, RMS continuous power, 250 Watt - 8 Ohm - 20 - 20000 Hz - THD 0.2% - 2 channels, 0.2 %, Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt. 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. Additionally, Parasound's A21 just won an … i appreciate and respect all opinions so please feel to contribute. The Halo A 23+ was designed by engineer John Curl, who’s well known in audio circles, and since the 1990s has designed many amplifiers for Parasound. 250 Watt, 400 Watt, 750 Watt. Nonetheless, it is still very much a Curl design, with his customary J-FET input stage, MOSFET driver stage, and beta-matched bipolar-transistor output stage—each arrayed in a complementary configuration, making for a more linear and lower distortion circuit. gain control, 250 Watt, 60 amps peak, per channel, Slew Rate We delete comments that violate our policy, which we encourage you to read. "With its high-quality chassis, thoughtful circuit design, and excellent sound quality, the A 21+ offers an impressive value proposition. < 0.1 % at full power 750 Watt, 4 Ohm, (With a class-AB output stage, one-third power results in the maximum dissipation in the output devices.) 2, 2, > 115 dB, input shorted, IHF A-weighted Its raw power is matched by elegant circuit design from audio guru John Curl in collaboration with CTC Builders. Power output: 300Wpc into 8 ohms (24.8dBW), 500Wpc into 4 ohms (24dBW), 1000Wpc into 8 ohms (bridged) (30dBW). Depth: 20" (508 mm) (39.9 kg), Power Requirement Although price isn’t indicative of which would be better, a 3b3 for only $400 more than the A21+ sounds like a better deal. 20 - 20000 Hz. Channel Type. main. I actually purchased my A21+ from them. 1 = Ground (Shield) Frequency Response. 2 mV - 10 mV, XLR Pin Identification 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… See all Halo … > 70 dB at 20 kHz, Input Impedance In fact I was in the process of reviewing the Thiel CS2.7 Floor-standing Speakers when the P 5 arrived. But an amplifier is not just about cosmetics especially when considering that most Audio Enthusiasts seem more interested in sound quality and features. Output Impedance / Channel. Unbalanced: 33 kΩ Discussion threads can be closed at any time at our discretion. Depth with cables: 21-1/2" (546 mm), Shipping Weight It will be a perfect match for your speakers. "The A 21+ represents a new unparalleled value in amplifier performance. As far as what the A21+ sounds like, that's anyones guess as I doubt many have heard it yet. © 2021 CNET, A RED VENTURES COMPANY. IMO the Vincent is a much better-sounding amplifier than the Parasound A21. 108,000 µF filter capacitors for output stages. "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. speakers output, 5 Hz - 100 kHz, +0/-3 dB Question is, does the a21 sound as good as the jc1 (close is good - there is a reason the jc1 is 4 times as much) and will the a21 be able to drive the 802's. 300 watts x 2, 8 Ω both channels driven > 110 dB, input shorted, unweighted, Damping Factor 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. Voltage gain: 29dB, 8 ohms (unbalanced input). Balanced: 1 V per leg, S/N Ratio balanced audio input, Typical Listening levels: 300 Watts main. Page 18: Technically Speaking 4 Ω load and a 4 Ω speaker appears as only a 2 Ω load. "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." It has enough power to drive almost any speaker you can buy for under $10,000. 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. Maximum: 1400 Watts, Stereophile March 2020 20 - 20000 Hz. +1 for John Curl’s linear design Parasound A21+ The Parasound A 21+ offers a lot of low-distortion power and isn’t fazed by impedance’s as low as 2 ohms.—John Atkinson Sounds like the MA gx300’s with ribbon tweeters need some grunt, judging by HiFi News and record Review "Bear in mind you will need a good amp to drive them." > 130 volts per microsecond, Frequency Response Input sensitivity: 1V per leg balanced, 1V unbalanced. Width: 17-5/8" (448 mm) The Design of the Parasound Halo P 5 Preamplifier. I preconditioned the amplifier by operating it at one-third the specified power into 8 ohms for an hour. I don’t know where you are located but AudioAdvisor is a US online dealer for both Bryston and Parasound. Unbalanced: 1 V I tried one at home once for a couple of days with my Vandersteen 3A speakers and it sounded terrible. 400 Watt, 0.03 %, THX Ultra2 certified, Harris hyper-fast soft-recovery bridge diode rectifiers. 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. just wondering if the parasound halo a21 power amp can be bi amped with another halo 21 or a parasound classic 2250. for my front left and right monitor audio pl300s? audio output, 4 Ohm, 8 Ohm. ! Parasound already brings listeners heavenly sound, but its halo now shines more beautifully than ever with its brand new version of the Halo A 23 two-channel power amplifier. Bridged 4 Ω operation is not recommended 500 watts x 2, 4 Ω both channels driven, Power Output – Bridged Mode (0.1% THD) 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. ", Positive Feedback January 2019 Channel Type. According to Parasound, the 3 o'clock setting means 20dB/26dB and the 12 o'clock setting means 10dB/16dB for single-ended/ balanced inputs, respectively. Idle (no music playing): 160 Watts Height with feet: 7-3/4" " (197 mm) Continuous power output (20 Hz - 20 kHz): 250 watts RMS x 2 at 8 ohms, 400 watts RMS x 2 at 4 ohms, 750 watts RMS x 1 (bridged mono mode) at 8 ohms. Congratulations and Thank You for Choosing Parasound Your new Parasound Halo Series A 21 power amplifier presents the latest advancements ... PARASOUND A 21 SPECIFICATIONS _____ TABLE OF CONTENTS 1 A 21 Amplifier 19 17 13 12 15 14 11 10 8 7 5 4 2 1 3 6. The Parasound A23 is a lousy amplifier. Halo has earned honors and awards that are unmatched. 1, audio input, 3 = Negative (Return), Dimensions Damping factor: >l1100 @ 20Hz. Power measurement are at 120 VAC: I have a pair of B&W nautilus 802. Output Impedance / Channel. 2 = Positive gold plated connectors, Parasound decided to update their already brilliant A 21 power amplifier which had become a staple for their brand for over 10 years. Automatic turn-on by 12 V trigger or audio sensing. ,1752'8&7,21 7kdqn