Parasound A21+ power amp $3300 - 300 watts of A/B, but stays in class A for most of your listening. My speakers are Paradigm Prestige 75F. A21+ is supposed to have a few improved components over the A21 but the Parasounds will probably never measure as good as the Benchmark or good implementations of Class D. However, some people prefer it for its sound signature not as a totally transparent amp which the others would be. I just figure if the Parasound Halo Ax1's were fully balanced, differential designs, Parasound would explicitly advertise it as so. Either way, you get a fully transferable Emotiva 5-year warranty and you can still pocket hundreds of dollars. At first look the Parasound Halo A 21 is an appealing and robust amplifier accented by brushed metal finish. All measurements into 4ohm load. Additionally, Parasound's A21 just won a… The Halo JC 5 stereo amplifier was a culmination of many requests from Parasound customers looking for something with the performance of their JC 1 Mono amp with space and cost savings of a stereo amp. After almost 2 years, local shops are still trying to fix the Goldmund and the A21 has done a wonderful job in my system. You must log in or register to reply here. I just wish it didn't have that "THX certified" logo on the front, kind of cheapens the look imo. Thanks for posting that, I have not seen this A21+ review yet. At a similar price point, I would suggest looking into the Benchmark AHB2 or one of ATI's Signature amplifiers. My qualified guess is that the integrated is worse than A21. Is this a good deal? Subjectively, it was more noisy (worse S/N). However, if judging the A 21+ on its outward appearance alone, it would seem not much has changed. As a previous long-time owner of the original A 21, I feel confident in saying the A 21+ does in fact sound similar. 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. Positive Feedback review - REVIEW. Both are excellent amplifiers in their own right. It was nothing to call home about. The A21 is the two-channel version of Parasound's benchmark A51 five-channel amp, which the May 2003 issue of DVD Etc. For my 2 channel system, I have the A21 with the P5 pre-amp along with the JC 3 Jr. phono preamp and love them all. Parasound Halo, ZoneMaster, Z Custom, and NewClassic are four distinct product families. In practice, this means the amp is biased to output a little over six watts per channel of pure Class A power. The measurements are generally very similar to mine performed on the older A21. All the amp needs is a little less grain, a little more warmth and a … I liked, on the A21 that I measured, a good suppression of mains line components. PARASOUND A21 AMPLIFIERS DESCRIPTION Halo A21 Two-Channel Amplifier 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 Current capacity: 60 amperes peak per channel Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt Parasound may have been thinking along these lines when they engaged the well-known amplifier designer John Curl to create their new five-channel amp, the Halo A 52+ ($2,995). @zerodeefex warned me about the Parasound amps. Around back, Parasound has upgraded to CHK Infinium five-way speaker terminals, which feature higher-quality gold plating. So is the Emotiva XPA-2 but just less expensive. A used Pass Labs vs. Parasound Halo A21 - kelvinkwong0908@hotmail.com - Amp/Preamp Asylum Amp/Preamp Asylum ... it may be better especially in transparency. Both balanced XLR and unbalanced RCA inputs are available, with each channel still featuring its own independent gain control and RCA signal loop outputs. To improve signal path and consistency over time, the A23+ also utilizes updated heavy-duty speaker terminals and internal gold-on-gold audio connections. Since Rotel and B&W are synonymous and the amp looks bad ass (matches well with my Marantz 7170). And despite what the purists say, on occasion, for example when playing a poorly engineered recording, they can be useful. We can’t remember the last time we reviewed a product such as this with bass and treble controls. The Parasound 2250 is one quality amp. Parasound also redesigned the input board layout of the A23+ to improve the cross-channel crosstalk (70 dB vs 63 dB at 20 kHz). 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. I think a tubed pre-amp with the XPA amps would be a great place to start. 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. Parasound P5 preamp measurements View attachment 83198 Swapping the Parasound in for the $20k Class AB Audio Research Ref 210 tube and $40k Class AB MBL 9008 solidstate monoblocks that are my references was somewhat less of a horizon-lowering experience than I anticipated. While the A 21+ was here, I was able to compare it to my First Watt J2. ConclusionThe A 21+ builds upon its predecessor's design, offering upgrades that elevate an already stellar amplifier to a new level. 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Maybe larger soundstage, fuller/richer mids. magazine said hit the "proverbial home run." "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." Parasound classifies the amp's topology as high-bias Class A/AB. PS: the A21 is the 250wpc @ $2500, the A23 is 100wpc @ $999. Its replacement, the Halo A 21+, is priced a little higher at $2,995. Bass performance from the A 21+ is as good as I've heard from any amplifier near its price point and even competes with many amps costing far more. Parasound's Halo JC5 conforms to some of these stereotypes, but there's more to it than just slam There's nothing terribly unusual about a big, hefty US-made power amp: after all, it's almost an archetype of what we think the US high-end is all about. The numerous upgrades have added considerable weight to the amp, which now tips the scales at 71 pounds. After auditioning several amps both recently and over the years I decided to stay with the Parasound … Anyone have measurements of the A21+? but has been updated with a few new features, ca. However, I also feel confident in saying the sound is not a carbon copy. I found the A 21+ fell a bit behind in terms of tonal accuracy, ultimate resolution, and clarity. Class A operation often imparts a particularly sweet, smooth, and organic sound signature, and the A 21+ definitely qualifies for these sonic traits, with treble frequencies in particular rendered smoothly and grain-free. Thanks, just noticed that's a pre-amp. It's a 2 channel amp, 250 watts into 8 ohms and 400 watts into 4 ohms. "The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. While the upgrades do come with a slightly higher asking price, I found, in practice, these changes make a meaningful enough difference to justify the new cost. 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. Curl also took a hard look at the A 21's circuit design and made several modifications, all aimed at improving performance and increasing sound quality. The new design halves THD, which is now specified at 0.1 percent. I do have the Parasound preamp slated for review. 60 amps current. Crosstalk and signal-to-noise ratio see improvements too, now rated at 70dB and 115dB, respectively. 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? Unless I'm mistaken, I could run through the ZBOX to implement tube sound. They can be switched out of the signal path when not needed, giving a slightly clearer sound. Build quality of the Parasound A 21+ is mighty impressive and handsome enough to fit into most décors. All of its high-power output is rated to be stable with speaker impedance dips down to 1.5 ohms. You could hear noise and slight hum if the ear was about 50cm from speakers with some 88dB/W/m sensitivity. You get a switchable phono stage, a headphone output and even tone controls. But it may lack the tube-like quality of A21. With its high-quality chassis, thoughtful circuit design, and excellent sound quality, the A 21+ offers an impressive value proposition. These thoughts are perfectly appropriate when nothing but a plus sign has been added to the model name. Audio Advisor sells the Parasound A21 for $2299.00. So, depending on the power needs of your speakers and how hard you drive them, much of you listening will be done in pure Class A, with Class AB power provided only in particularly dynamic moments. After 15 years of devoted service, Parasound has retired its beloved Halo A 21 amplifier. As the... KONKA Announces Three New Android TV Series for 2021 Lineup. In fact, these are the same speaker terminals found on the company's more expensive JC 5 amplifier, though only a single pair of terminals is included per channel, so those looking to bi-wire their speakers will need to consider a different amp. It's unlikely you'll find a pair of speakers the A 21+ struggles to power. But what, exactly, do you get for that extra coin? JavaScript is disabled. Submit a ReviewContact Editorial Policy About us, Privacy Policy CCPA / GDPR Affiliate policy. 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. However, it seems to me that regarding measurements the A21+, according to Stereophile plots, is a step back. The former tried and true, untouchable value and staple of their product line, the A21, had set the bar for value vs. performance in both the HiFi and Professional audio worlds. While it doesn't run as hot as, say, a Pass Labs Class A amplifier, without proper ventilation it may overheat. problem with channel imbalance induced by used Alps pot. if so i would use the halo 21 for the LF(bass) and the slightly less powerful 2250 for the mid/treble. Really scared. Additional Resources• Visit the Parsound website for additional information.• Parasound Halo P 5 2.1-Channel Preamplifier Reviewed at HomeTheaterReview.com.• Parasound Announces HINT 6 Integrated Amplifier at HomeTheaterReview.com. Like its predecessor, the A 21+ still punches well above its price point in overall performance and is still an amplifier that does most things right. So which amp did you go with and why? For a better experience, please enable JavaScript in your browser before proceeding. You'll automatically be entered in the HTR Sweepstakes, and get the hottest audio deals directly in your inbox. The A21 is still a very good amp but I am surprised that Parasound has not upgraded it. An amp that will stay in your system for years. After 15 years of devoted service, Parasound has retired its beloved Halo A 21 amplifier. 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." He owned an A21, the better more powerful version of this amp. My XSP-1 has a processor loop. A21+ is supposed to have a few improved components over the A21 but the Parasounds will probably never measure as good as the Benchmark or good implementations of Class D. However, some people prefer it for its sound signature not as a totally transparent amp which the others would be. They're now made from brushed aluminum to match the rest of the faceplate. My qualified guess is that the integrated is worse than A21. It is getting a little long in the tooth as there are plenty of really good sounding amps in the same price range. No shortage of machismo – it has to be an American power amp, right? Matched JFET inputs, MOSFET drivers, and high-current bipolar outputs contribute to its exceptional performance. PC --> Topping D90 --> *Denafrips Hyperion* and Schiit Vidar --> Magnepan 1.7i and *Tekton Lore Reference*. Not sure about the bass performance comparison between the two. The A 21 amplifier is loaded with usable … 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. Due to its design, the amp is always drawing power when turned on and needs to dissipate a lot of it as heat, so I suggest you place the amp in a well-ventilated area. I, for one, found the comparisons to Class D and to much pricier Class AB amplifiers enlightening. I am now scared. Essentially, it’s trying to cram two of their top-of-the-line mono amps into a more attractive package – in both size and price. The A 21+ utilizes JFETs for the input stage, a MOSFET driver stage, and uses 16 beta-matched bipolar transistors for its output stage. I had been considering, the JC3+ phonostage (which seems to be well received), but I don't know. This amplifier is a beast and, because of that, I suggest you get help when unboxing and setting it up. 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 that said, I found the most impressive part about the A 21+ was how it handled the bottom end. It fills the hole that was left in 2012 when Parasound discontinued the $2,500 A 52. The amp is still offered in both black and silver finish options, and although at first glance the chassis appears unchanged, a few upgrades have occurred there as well. I also have the A52+ driving 5 of the main channels in my HT setup. One of the biggest gripes owners had with the A 21's chassis was the plastic end caps found on the faceplate. Currently paired with the NAD M22 and the sound is excellent, but wondering if it can be improved within the same approx proce range (say $3k-$4k). If bass performance is of utmost concern, the A 21+ should be on your shortlist of amps to consider. Thanks. 2014 (?). f you have the room, I'd put my the XPA-1s up against the Parasound A21 any day of the week. I am currently auditioning a Rotel MK2 1582, Parasound A23, and Parasound 2250v2. To facilitate this, the designer of the A 21, the legendary John Curl, was brought back in to make the necessary modifications. Or is it a different sounding amp? I measured Halo A21 in January 2019. 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. 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 driving a pair of B&W 804 Diamonds and I really wanted the Rotel to be the keeper. CES Trends: MiniLED and is it Better than OLED? The LED notification lights cannot be dimmed or turned off when the amp is operating. "Close Enough to … In a sense, you're getting an A 21, but with more of everything. It's also bulky in size, measuring in at 17.6 inches by 7.75 inches by 20 inches. 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. You could hear noise and slight hum if the ear was about 50cm from speakers with some 88dB/W/m sensitivity. This lack of sparkle on the top end makes it an ideal candidate for those who like to listen for long periods of time. Parasound calls the Halo Integrated … Halo has earned honors and awards that are unmatched. 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. Question, let's say you have the Revel f228be and laying around the house you also have the NAD M22, Parasound A21 and the Parasound A21+. It was quite good, see attached plots. Subjectively, it was more noisy (worse S/N). A Parasound NewClassic 2250 2 channel and a Parasound NewClassic 5250 5 channel were replaced with a Parasound Halo A21 and Parasound A52+ respectively. If not, I'd go XPR-2. The Parasound 2250 V.2 "new classic" -- 275wpc Stereo Power Amp is ON SALE for $999, down from $1395. Amp Parasound Zamp V.2 Ipod Classic Bocinas Advent Calypso. The Parasound may have a lower noise floor and lean to the warmer side of neutral which some(me also) perceive as more musical. 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. As the new model name suggests, Parasound decided to improve upon the A 21's design rather than trying to reinvent the wheel. Its replacement, the Halo A 21+, is priced a little higher at $2,995. While six watts may not seem like much, that's enough power to drive all but the most inefficient speakers to reasonably high SPLs for the majority of music or movies you'll likely listen to. Any comments on either welcome. The A21 has more power than I need, which is perfect, just in case I want to really crank it up. Is the A21 the same as the A23 only with more power? 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.”. , ZoneMaster, Z Custom, and NewClassic are four distinct product families distinct product families is getting a over. Updated heavy-duty speaker terminals and internal gold-on-gold audio connections respect all opinions so please feel to.... 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