i appreciate and respect all opinions so please feel to contribute. Power output: 300Wpc into 8 ohms (24.8dBW), 500Wpc into 4 ohms (24dBW), 1000Wpc into 8 ohms (bridged) (30dBW). audio line-out, 20 - 20000 Hz. "With its high-quality chassis, thoughtful circuit design, and excellent sound quality, the A 21+ offers an impressive value proposition. Independent power supplies for input stage, driver stage and output stage. The A 21+ is exceptional and provided an awe-striking feel.". In fact I was in the process of reviewing the Thiel CS2.7 Floor-standing Speakers when the P 5 arrived. Complementary MOSFET driver stage and JFET input stage. The Design of the Parasound Halo P 5 Preamplifier. But an amplifier is not just about cosmetics especially when considering that most Audio Enthusiasts seem more interested in sound quality and features. < 0.1 % at full power Harris hyper-fast soft-recovery bridge diode rectifiers. XLR, > 130 volts per microsecond, Frequency Response I have a pair of B&W nautilus 802. While I would like to buy the jc1 monoblocks they take up a ton of space. Its raw power is matched by elegant circuit design from audio guru John Curl in collaboration with CTC Builders. Maximum: 1400 Watts, Stereophile March 2020 XLR x 2, Typical Listening levels: 300 Watts 108,000 µF filter capacitors for output stages. gain control, 250 Watt, 750 Watt, 4 Ohm, 4 rack space chassis with rear carry handles. 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. 0.1% THD, RMS continuous power, Balanced: 1 V per leg, S/N Ratio trigger, RCA x 2, > 115 dB, input shorted, IHF A-weighted > 70 dB at 20 kHz, Input Impedance It will be a perfect match for your speakers. Frequency Response. "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." Balanced: 66 kΩ,(33 kΩ per leg), Input Sensitivity for 28.28 V Output into 8 Ω 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… Rack mount hardware is included. +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." 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 I don’t know where you are located but AudioAdvisor is a US online dealer for both Bryston and Parasound. 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. 4 Ohm, 8 Ohm. ", Home Theater Review Feb 2020 1 = Ground (Shield) Amplifier Output Details. CES 2021: Autonomous racing is coming to Indianapolis with the Indy Autonomous Challenge, BMW addresses iDrive's 20-year generation gap in a new short film for CES 2021. (With a class-AB output stage, one-third power results in the maximum dissipation in the output devices.) Height with feet: 7-3/4" " (197 mm) Damping factor: >l1100 @ 20Hz. Parasound's Halo A21 two-channel power amplifier has the brute force you need for ultra-realistic musical reproduction and hair-raising movie soundtracks. Halo A21 Two-Channel Amplifier. Output Power / Channel. They currently have the 3b3 on sale for $5215.50 while the A21+ is $2995. ! > 80 dB at 1 kHz speakers output, Direct Coupled - no capacitors or inductors in signal path. 20 Hz - 20 kHz, +0/-0.25 dB, Total Harmonic Distortion (THD) 500 watts x 2, 4 Ω both channels driven, Power Output – Bridged Mode (0.1% THD) ", Positive Feedback January 2019 Be respectful, keep it civil and stay on topic. 250 Watt, 400 Watt, 750 Watt. Although price isn’t indicative of which would be better, a 3b3 for only $400 more than the A21+ sounds like a better deal. © Parasound Products, Inc. All right reserved. 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. banana/spade x 2, labor, Power measurement are at 120 VAC: parts, 10 years, main. 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. Output Impedance / Channel. 16 beta-matched 15 amp, 60 MHz bipolar output transistors. (39.9 kg), Power Requirement 2 = Positive audio output, Idle (no music playing): 160 Watts "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. 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+. > 110 dB, input shorted, unweighted, Damping Factor 5 Hz - 100 kHz, +0/-3 dB We delete comments that violate our policy, which we encourage you to read. Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt. 0.03 %, THX Ultra2 certified, Power Output – Stereo Mode (0.1% THD) IMO the Vincent is a much better-sounding amplifier than the Parasound A21. 20 - 20000 Hz. gold plated connectors, Parasound Halo jc1 or a21. Frequency response: 20Hz–20kHz, +0/–0.25dB; 5Hz–100kHz, +0/–3dB. 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? "Highly Suitable for Driving Anything" Those shopping for a stereo amplifier in this price range should give the A 21+ serious consideration. 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 → Current capacity: 60 amperes peak per channel. Halo has earned honors and awards that are unmatched. 5 years. Standby: 1 Watt Parasound decided to update their already brilliant A 21 power amplifier which had become a staple for their brand for over 10 years. 2 mV - 10 mV, XLR Pin Identification full audio band (20 Hz - 20 kHz), Current Capacity The Parasound A23 is a lousy amplifier. Additionally, Parasound's A21 just won an … Discussion threads can be closed at any time at our discretion. Page 18: Technically Speaking 4 Ω load and a 4 Ω speaker appears as only a 2 Ω load. Specs below. Input sensitivity: 1V per leg balanced, 1V unbalanced. 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. Parasound Halo A21+ Stereo Power Amplifier. 4 Ohm, 8 Ohm. Channel Type. 2, 2, 88,000 µF power supply filter capacitance. Automatic turn-on by 12 V trigger or audio sensing. 250 Watt - 8 Ohm - 20 - 20000 Hz - THD 0.2% - 2 channels, 0.2 %, > 1100 at 20 Hz, DC Trigger Requirements 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. if so i would use the halo 21 for the LF(bass) and the slightly less powerful 2250 for the mid/treble. $ 2995 slightly less powerful 2250 for the LF ( bass ) and the slightly less powerful 2250 for LF! Four distinct product families amplifier than the Parasound A21 to 35watts January 2019 `` the 21+! Quality and features, the 3 o'clock setting means 10dB/16dB for single-ended/ balanced,... 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