These were the very qualities the Teddy Pardo MB 100 (Issue 88) possessed that helped it stay in the league of the A21 when I reviewed it. 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. Your support is greatly appreciated! Richard from Parasound was also kind enough to explain that over its fifteen plus year tenure the A21 never saw a price increase while the cost of components has significantly risen. Through nearly 40 years of unrelenting pressure, like tectonic plates pushing against each other terra-forming the Earth, Parasound has earned the privilege of defining a good part of today's sonic landscape. The Halo A21+ (moving forward just the A21+) is dense. "U Can't Hold No Groove…," and "Overjoyed" were exceptional in all aspects which allowed Victor's message to come through his 4-string and into every little hair on the back of my neck. I should have heeded the note left by UPS when the original delivery was attempted! Alleen bij ons 5 jaar garantie! High Points. The New First Watt SIT-3 Stereo Power Amplifier by Nelson Pass! 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. 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. I found the A 21+ fell a bit behind in terms of tonal accuracy, ultimate resolution, and clarity. As previously mentioned, I am not convinced the raw power difference is the primary advantage over the A21, though the A21+ provides more audible control in the first two octaves (20Hz - 80Hz) over its predecessor. It is very satisfying to forget I was listening through an absolute powerhouse and when I desired a light touch for delicate music, it was there. Unrelenting quality and a focus on establishing the proper supply chains with strong business relationships allow these professional products to exist not at the top of some mountain, pushed up and away from music lovers everywhere, but in an attainable from that is available to all. The A21 showed why mastery is important in any design work as John Curl created an affordable amplifier that was considered top-tier for over fifteen years! Richard explained that the basic architecture and topology of the A21+ is similar to the A21, but not identical. If bass performance is of utmost concern, the A 21+ should be on your shortlist of amps to consider. Parasound Halo Integrated review: if you’re after one do-it-all amp, there are few better alternatives. Build quality of the Parasound A 21+ is mighty impressive and handsome enough to fit into most décors. 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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. For the amount of real power the A21+ is capable of, it stands stout. Parasound Halo A21 $2495 An excellent Class AB stereo transistor amp, designed by the redoubtable John Curl, capable of 250Wpc into 8 ohms (400 into 4 ohms).   Â, It is difficult to pick out a handful of standout tracks on the A21+. However, if judging the A 21+ on its outward appearance alone, it would seem not much has changed. 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. Two-channel 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. "Classical Thump" blew me away thanks to the A21+'s control and accurate timbre. It is worth a mention that when using a DAC such as the Bricasti M1 directly driving the A21+, there is a long-term benefit to proper gain adjustment. Build quality of the Parasound A 21+ is mighty impressive and handsome enough to fit into most décors. This 20% output increase and eleven-pound greater heft over the A21 is thanks in part to a larger power supply. – read the review at What Hi-Fi? All Rights Reserved, A Q&A with Estelon - A Decade of Loudspeaker Excellence, AGD Productions - The Audion Monoblock Amplifier, KECES S300 Power Amplifier and S3 Preamplifier, Bricasti Design MDx Board Update - Keeping Digital Customers Future Ready, The Clarus Duet - A Journey Though High-Current Line Conditioning. Unboxing the brute that sits in Parasound's top-teir, "Halo" line took my six-foot-three 245 pound frame everything it had. From that point onward, the amp switches over to Class AB operation. (woofer/tweeter are gold plate bridged) From the Sub out I run into An Emotiva XPA-200 which then run to the Dalquist W2 woofer bases. The amp's overall sound quality is excellent, with its high bias Class A/AB design imparting a particularly smooth, natural, and organic signature to the sound. At first look the Parasound Halo A 21 is an appealing and robust amplifier accented by brushed metal finish. I could not make the A21+ less than enjoyable regardless of what I chose to play through it. While the A 21+ was here, I was able to compare it to my First Watt J2. Thank you, Parasound, for making the blue channel indicator lights as well as the back-lit power button tasteful in intensity so they are not distracting. When used in pro-audio applications, those setting up and balancing such systems already know what to do. Diomede - Floor standing 4-way, dual 10" custom loudspeakers, Vegatrons - Floor standing 3-way 10" custom loudspeakers, Metals - Floor standing 3-way 8" custom loudspeakers, Tenacious 3 - Floor Standing 3-way dual 5" custom loudspeakers, RHTB - Stand Mounted 2.5-way dual 5" custom loudspeakers, "Esperanto Paralanto" - STand mounted 6.5" 2-way custom loudspeaker, Bricasti M1 DAC , Parasound Halo P6 Preamp/phono/DAC, Parasound Halo A21+ amplifier, Parasound Halo A21 amplifier, and Marantz SR7000 Reciever.Â.   Â. Find helpful customer reviews and review ratings for Parasound - Halo A21 Two-Channel Amplifier (Balck) at Amazon.com. With its high-quality chassis, thoughtful circuit design, and excellent sound quality, the A 21+ offers an impressive value proposition. It was such a game changer in my system that I bought four more Emo amps to replace the rest of my more recognizable brand name pieces Emotiva XPA-DR1 X 3 Parasound however, pulled it off exceptionally. Those shopping for a stereo amplifier in this price range should give the A 21+ serious consideration. One can pop the feet off and use the supplied mounting kit to secure the A21+ into a standard 19 inch wide audio rack where the mounting height will be four rack spaces. There are knobs for gain, and small switches that allow selection of balanced/unbalanced inputs and bridged/stereo operation. Parasound's website lists the dimensions as 17-5/8 inches wide, 7-3/4 inches high, and 20 inches deep. If your amplifier budget dictates $2000 USD on an amplifier, save a little longer and buy the A21+. Yet when it was time to forget all the mumbo-jumbo and just listen, the A21+ was several ticks closer to the M15 in overall capability than both the A21 and the MB100. It separates left to right and front to back on the soundstage, gives each instrument enough air and clarity that they each occupy their own space. Furman 20A surge protector and noise suppression. 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