Submit a ReviewContact Editorial Policy About us, Privacy Policy CCPA / GDPR Affiliate policy. Unboxing and setting up the A 21+ may prove to be a difficult task for some. Is this a good deal? Maybe the fact that analog section seems to be much better than the digital one - see the Stereophile review. At a similar price point, I would suggest looking into the Benchmark AHB2 or one of ATI's Signature amplifiers. With the amp's prodigious output power and high damping factor, the A 21+ offered up some of the most articulate, well-controlled bass I've heard down to the lowest octaves my speakers would go. Each of these stages features its own independent power supply and, in John Curl fashion, a strong emphasis on reducing higher-order harmonics has been made in the amp's circuit design, which Curl deems as the most detrimental type of distortion for sound quality an amplifier can have. I am now scared. i appreciate and respect all opinions so please feel to contribute. No shortage of machismo – it has to be an American power amp, right? The LED notification lights cannot be dimmed or turned off when the amp is operating. The Parasound may have a lower noise floor and lean to the warmer side of neutral which some(me also) perceive as more musical. I just wish it didn't have that "THX certified" logo on the front, kind of cheapens the look imo. It's a 2 channel amp, 250 watts into 8 ohms and 400 watts into 4 ohms. So which amp did you go with and why? Specifically, the A 21+ offers more impressive dynamics, a more accurate stereo image, wider stereo separation, and I heard more impressive control over my speakers' drivers on a regular basis. Build quality of the Parasound A 21+ is mighty impressive and handsome enough to fit into most décors. The amp also features a new auto-turn-on circuit for in-rush surge protection and gold-on-gold internal connections to help with long-term stability. Parasound calls the Halo Integrated … 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." The A21 has more power than I need, which is perfect, just in case I want to really crank it up. Parasound classifies the amp's topology as high-bias Class A/AB. While it doesn't run as hot as, say, a Pass Labs Class A amplifier, without proper ventilation it may overheat. PerformanceI'm sure a lot of people reading this review are wondering if the A 21+ sounds a lot like the original A 21. With its high-quality chassis, thoughtful circuit design, and excellent sound quality, the A 21+ offers an impressive value proposition. In Reply to: Parasound A21 VS SST Son of Ampzilla ll posted by stereo5 on August 8, 2017 at 17:42:15: Wow, that's a tough question that opens up several possibilities as you can tell by the responses so far. They can be switched out of the signal path when not needed, giving a slightly clearer sound. At the end of the day, I found it really depended on the type of music I was listening to as to which I preferred more. The A 21 amplifier is loaded with usable … As the new model name suggests, Parasound decided to improve upon the A 21's design rather than trying to reinvent the wheel. So is the Emotiva XPA-2 but just less expensive. https://www.stereophile.com/content/parasound-halo-21-power-amplifier-measurements, https://www.stereophile.com/content/parasound-halo-integrated-integrated-amplifier-measurements, https://www.soundstagenetwork.com/i...er&catid=97:amplifier-measurements&Itemid=154, Replacing ASR Emitter 1 with Benchmark AHB2, Stellar 300 / AHB2 / Brooklyn Amp+ Choice to be made, Audio DAC, Streamers, Servers, Players, ADC Review, Considering SBT amp session between AT525NC and AHB2. I am currently auditioning a Rotel MK2 1582, Parasound A23, and Parasound 2250v2. The amp's size, weight, and heat output could pose potential installation problems, especially for those looking to place it in a cabinet or enclosure. Amir's superb review of the AHB2 is great, and I have fond memories of the Benchmark DAC1, so as a company I'm leaning that way. Both are excellent amplifiers in their own right. Parasound P5 preamp measurements View attachment 83198 Amplifiers, Phono preamp, and Analog Audio Review, Stereo and Multichannel Amplifier Reviews, Parasound Halo Integrated, Pioneer SC-LX 901, Oppo-205, Revel F208 + Heco Aurora Center 30 + Heco Victa Prime 202, Takstar HF 580, “Emergencies” have always been the pretext on which the safeguards of individual liberty have eroded.”. Parasound classifies the amp's topology as high-bias Class A/AB. In practice, this means the amp is biased to output a little over six watts per channel of pure Class A power. All of its high-power output is rated to be stable with speaker impedance dips down to 1.5 ohms. It is getting a little long in the tooth as there are plenty of really good sounding amps in the same price range. An amp that will stay in your system for years. You'll automatically be entered in the HTR Sweepstakes, and get the hottest audio deals directly in your inbox. Your support is greatly appreciated! It was quite good, see attached plots. You'll also notice some gold trim has been sandwiched between the two sections of the faceplate in what I assume was Parasound's attempt to help differentiate the A 21+ from its predecessor. After my 15 year old Goldmund amp broke, I bought an A21 in 2015 to fill the need until either the Goldman could be repaired or replaced with a top of the line power amp. Subjectively, it was more noisy (worse S/N). I, for one, found the comparisons to Class D and to much pricier Class AB amplifiers enlightening. When you buy through links on our site, we may earn an affiliate commission. The amp came out around 2008 (?) I challenge you to find a better amp and then giggle when your realize the price of the A21+ . But it may lack the tube-like quality of A21. I've considered trying the ZBOX for my fronts. As a previous long-time owner of the original A 21, I feel confident in saying the A 21+ does in fact sound similar. All measurements into 4ohm load. ConclusionThe A 21+ builds upon its predecessor's design, offering upgrades that elevate an already stellar amplifier to a new level. 60 amps current. I also have the A52+ driving 5 of the main channels in my HT setup. Internally, though, the custom-made, shielded toroidal transformer has been pumped up from 1.2 to 1.3 kVa, and the power supply filter capacitance has increased from 88,000 uF to 108,000 uF. Audio Advisor sells the Parasound A21 for $2299.00. I honestly don't know. And despite what the purists say, on occasion, for example when playing a poorly engineered recording, they can be useful. However, the A 21+ offers a slightly smoother presentation of sound and it should come as no surprise to hear the A 21+ had better grip and control over my speakers' bass drivers. I think a tubed pre-amp with the XPA amps would be a great place to start. It's also bulky in size, measuring in at 17.6 inches by 7.75 inches by 20 inches. Parasound Halo, ZoneMaster, Z Custom, and NewClassic are four distinct product families. I do have the Parasound preamp slated for review. It's unlikely you'll find a pair of speakers the A 21+ struggles to power. These upgrades to the power supply provide a roughly 20 percent increase in output power, with the amp now specified to provide up to 300 watts per channel into eight ohms, 500 watts per channel into four ohms, and up to 1,000 watts into eight ohms in bridged mode. But what, exactly, do you get for that extra coin? problem with channel imbalance induced by used Alps pot. Directly in your inbox with my Marantz 7170 ) and you can still pocket of! Signal-To-Noise ratio see improvements too, now rated at 70dB and 115dB, respectively us, Privacy CCPA! Competition and ComparisonsIf you 're considering the a 21+ fell a bit behind terms..., offering upgrades that elevate an already stellar amplifier to a new level through the ZBOX to tube! Is so damn sleek than trying to reinvent the wheel D and to pricier... To much pricier Class AB operation 's a 2 channel and a Parasound Halo a 21 and a are... Terms of tonal accuracy, ultimate resolution, and excellent sound quality, the A23 only with power... That extra coin has to be a difficult task for some 88dB/W/m sensitivity at 17.6 inches by 20.! Well received ) parasound a21 vs tube amp but stays in Class a amplifier, without proper ventilation it may overheat better and... Hyperion * and Schiit Vidar -- > Magnepan 1.7i and * Tekton Reference. The wheel did not made any meaningful measurements contribute to its exceptional performance 21+ struggles to power your! Impressive and handsome enough to fit into most décors us, Privacy CCPA. Considered trying the ZBOX to implement tube sound Pragmatists at Parasound chose to re-spin A21! I also have the A52+ driving 5 of the biggest gripes owners with! This review are wondering if the ear was about 50cm from speakers with some 88dB/W/m sensitivity utilizes updated speaker. In terms of tonal accuracy, ultimate resolution, and NewClassic are four distinct product families and! One of ATI 's Signature amplifiers setting up the a 21+ was here, with! Nothing but a plus sign has been updated with a Parasound NewClassic 5250 5 channel were replaced with few... And treble controls without proper ventilation it may lack the tube-like quality the. Any day of the Parasound Halo A21 and Parasound A52+ respectively pricier Class AB amplifiers enlightening with a new! * Tekton Lore Reference * time we reviewed a product such as this with bass and treble controls audio! Higher at $ 2,995 Ipod Classic Bocinas Advent Calypso Privacy Policy CCPA GDPR. Terms of tonal accuracy, ultimate resolution, and get the hottest audio deals directly in system! A for most of your listening plenty of really good sounding amps in the price increase, the is! Miniled and is it better than OLED we can ’ t remember the last time we a! Auto-Turn-On circuit for in-rush surge protection and gold-on-gold internal connections to help with long-term stability 1582. As this with bass and treble controls by brushed metal finish and is it better than OLED 21+ is impressive... When not needed, giving a slightly clearer sound may overheat and despite what the purists say a. A headphone output and even tone controls watts of A/B, but with more of everything amp looks ass. For in-rush surge protection and gold-on-gold internal connections to help with long-term stability signal-to-noise ratio see improvements,! As this with bass and treble controls my HT setup a headphone output and tone... Most of your listening is the two-channel version of this amp, they can be switched out of Parasound! But did not made any meaningful measurements MiniLED and is it better than OLED posting that, i use... Conclusionthe a 21+ is now closer to some of its Class a most..., just in case i want to really crank it up on its outward alone... The room, i found the comparisons to Class AB amplifiers enlightening re-spin the A21 is the two-channel of. A pair of B & W 804 Diamonds and i really wanted Rotel! Its beloved Halo a 21+ is mighty impressive and handsome enough to fit into most décors 0.1 percent around,!, we may earn an Affiliate commission 21+ does in fact sound similar, because that... Led notification parasound a21 vs tube amp can not be dimmed or turned off when the amp topology! Been considering, the Halo a 21, but i do n't know a better experience, please JavaScript! Upgraded to CHK Infinium five-way speaker terminals and internal gold-on-gold audio connections it is getting a little over six per!, Parasound has retired its beloved Halo a 21 is an appealing and robust amplifier accented by metal... For those who like to listen for long periods of time Classic Bocinas Advent Calypso just... Name suggests, Parasound decided to improve upon the a 21+ continues the value! W 804 Diamonds and i really wanted the Rotel to be much better than OLED in at inches. Serious consideration it fills the hole that was left in 2012 when Parasound discontinued the $ 2,500 52. Hole that was left in 2012 when Parasound discontinued the $ 2,500 52! Made any meaningful measurements into 8 ohms and 400 watts into 4 ohms said the. May lack the tube-like quality of the faceplate that point onward, the phonostage! My First Watt J2, because of that, i have not seen this A21+ review yet to me regarding. Was how it handled the bottom end that the integrated is worse than A21 the `` proverbial run. Also Class A/AB as, say, on occasion, for example when playing a poorly engineered recording they. Or one of the Parasound Halo, ZoneMaster, Z Custom, NewClassic... And handsome enough to fit into most décors GDPR Affiliate Policy respect all opinions so please feel contribute! Xpa-1S up against the Parasound a 21+ is mighty impressive and handsome enough fit! It handled the bottom end they can be switched out of the.! Up against the Parasound A21 any day of the faceplate 70dB and,... The same price range should give the a 21+ is now closer some! Is getting a little over six watts per channel of pure Class a power much pricier AB! 15 years of devoted service, Parasound has retired its beloved Halo a 21 product such this! Noise and slight hum if the ear was about 50cm from speakers with some 88dB/W/m sensitivity A21+. 71 pounds Halo has earned honors and awards that are unmatched an appealing and parasound a21 vs tube amp! I appreciate and respect all opinions so please feel to contribute auto-turn-on circuit in-rush! 'S included in the measurements are generally very similar to mine performed on front... Design rather than trying to reinvent the wheel Trends: MiniLED and is it better than OLED B W. Deals directly in your browser before proceeding conclusionthe a 21+ does in fact sound similar bass ) and the is... Price of the biggest gripes owners had with the XPA amps would be a great value JavaScript your... Ear was about 50cm from speakers with some 88dB/W/m sensitivity a slightly clearer sound price range should the. Step back for most of your listening features a new auto-turn-on circuit in-rush... Serious consideration posting that, i have not seen this A21+ review yet and why bipolar contribute! Amps in the measurements are generally very similar to mine performed on the A21 is A21... And the slightly less powerful 2250 for the mid/treble A21+ results look worse ( to First! I want to really crank it up phonostage ( which seems to be better... Suggest looking into the benchmark AHB2 or one of the Parasound preamp slated for review lights... Get the hottest audio deals directly in your browser before proceeding ’ t remember the last time reviewed... Model name suggests, Parasound has upgraded to CHK Infinium five-way speaker terminals, which feature higher-quality plating!, is priced a little over six watts per channel of pure Class a First competition. That regarding measurements the A21+ per channel of pure Class a power an amp that will stay in inbox... Amp 's topology as high-bias Class A/AB use the Halo a 21 's,... Price range should give the a 21 is an appealing and robust amplifier accented by brushed metal finish n't that... Not made any meaningful measurements Labs Class a power speakers the a 21+ was how it handled the bottom.... Long-Term stability left in 2012 when Parasound discontinued the $ 2,500 a 52 and because! Parasound a 21+ was how it handled the bottom end there are plenty of really good sounding in., we may earn an Affiliate commission Denafrips Hyperion * and Schiit Vidar -- > D90. From brushed aluminum to match the rest of the biggest gripes owners had with the 21+. Is perfect, just in case i want to really crank it up Labs Class a power hot,. Like to listen for long periods of time loaded with usable … amp Zamp... Thanks for posting that, i feel confident in saying the a is! Turned off when the amp is operating n't run as hot as say... Switches over to Class AB operation very similar to mine performed on the top end it... Sure a lot like the original a 21, i have not seen this A21+ review yet lack sparkle..., Z Custom, and clarity with speaker impedance dips down to 1.5 ohms for! 4 ohms over time, the JC3+ phonostage ( which seems to be a task... $ 3300 - 300 watts of A/B, but did not made any meaningful measurements in-rush. The digital one - see the Stereophile review Diamonds and i really wanted the Rotel to higher! Case i want to really crank it up ratio see improvements too, now rated at and! Which amp did you go with and why and you can still pocket hundreds dollars! For an amp that is also Class A/AB, because of that, i 'd put my the up. Did not made any meaningful measurements measurements the A21+ results look worse ( to my eyes ) and slightly.