This is not the Parasound’s fault. I believe the primary purpose for developing and marketing an amplifier is to honor its customers in every respect the money will follow. Parasound … Couldn't help but notice the recent sale Audio Advisor had on the black color edition of the Parasound JC-2 preamps. It is because there are many notes that are being played at the same time, perhaps 10 because there are 10 fingers on two hands. The Parasound Halo JC 5 certainly lives up to the buzz. You mention that the JC 1+ uses a cascode driver circuit because it has higher input impedance and higher output impedance. Aesthetically, Parasound says the front panel not only matches the updated Halo family appearance, but also complements “the inner beauty” of the JC1+. The front panel design not only matches the updated Halo family appearance, but also complements the inner beauty of the JC1+. Highs are so much more detailed without being annoying. Yes. Will the latest transistor technology (stacked Nanosheet FETs) provide audible differences from conventional bipolar and Mosfet/JFet technology? Other companies have since copied this ingenious business model, and, as transportation and communication have improved, doing so has become easier and more efficient. Frequency, 5 Volts and 20 Volts output, is shown below, at 8 Ohms load. Parasound A31 Three Channel Power Amplifier Parasound Halo P 6 Preamplifier & DAC Reviewed Parasound 275 v.2 Stereo Amplifier Reviewed Parasound Halo Integrated 2.1-Channel … The Parasound JC 1+ amplifiers did very well with this. Their characteristics are undesirable for high quality audio frequency amplification. For audio systems where the source and amplifier stack are in between the speakers, you would probably be using two of the 6 foot cables, at about $4,000 for the pair. This makes for a complex waveform. Distortion plus noise was still quite low. The Parasound Halo JC 1—a powerful, sophisticated premium product—was designed by a team headed by audio legend John Curl, and built for Parasound by a factory in Taiwan. Note that such cables are for high-end products (amplifiers and speakers). 2L is world-renown for superb quality digital recordings. Distortion is a few hundredths of a percent higher. I listened to a pair of the Parasound JC 1+ power amplifiers with a computer (PC) delivering Tidal music streaming via USB input to an OPPO UDP-205 Universal Player, a hard drive connected to the UDP-205 with my entire digital music collection stored on it, VPI-HR-X Turntable with Sumiko Palo Santos MC Phono Cartridge, Manley Labs Steelhead Phono Preamplifier, Pass Labs Xs Preamplifier, Sonus faber Lilium Speakers, Wireworld XLR cables, and Clarus Crimson speaker cables. The raw wire used for making speaker, audio, and power cables are made with conductors that are extruded into special shapes using the highest grade of ultra-pure copper available. The sound is exemplary and reflects its … Still insignificant. Gain and Bias were set to Normal (29 dB Gain, 25 Watts Class A Bias). The JC 1 has much larger heatsinks, twice the power supply, better internal componentry and layout, and its range of operation in class-A has been extended to 25W, which should be enough to keep it from class-AB operation on all but the most demanding musical passages. PS Audio Stellar M1200 monoblock power amplifier, Classé Delta Mono monoblock power amplifier, Pass Laboratories Aleph 0 monoblock power amplifier, Parasound Halo JC 1+ monoblock power amplifier, darTZeel NHB-468 monoblock power amplifier, Accustic Arts Audio Mono II monoblock power amplifier, Dynaco Stereo 120 transistor power amplifier, Revinylization #13: Tone Poet, Analogue Productions, ERC reissues, Analog Corner #290: The Haniwa LP Playback System, Gramophone Dreams #44: Audio-Technica, Goldring, LP Gear phono cartridges, Cambridge Audio CXA81 integrated amplifier, Analog Corner # 305: Degritter record cleaner & Aidas Gala Gold LE cartridge, Acoustic Geometry Room treatments (before & after), My current and likely the last home audio setup, Fascinating wiev by Verity Audio Sarastro, Recommended Components: Fall 2020 Edition. The JC 1+ embodies our highest achievement of value engineering and my greatest sense of accomplishment. The new Parasound … According to Crump, the JC 1 grew out of a CTC-modified Parasound HCA-3500 called the CTC BBQ, which was demoed at the 2001 Consumer Electronics Show. Even though our NewClassic power amplifiers are superb examples of Class G, we mention only their Class AB audio circuit topology to avoid confusion. How could we make a product that is “ours” and differentiate it from another brand? The many complex and time-consuming steps require a considerable amount of labor. "...Parasound's Halo JC 1 amplifier, is among the most precisely nuanced amplifiers I know, able to draw the slightest and most delicate of musical expressions, to make the subtlest distinctions. This new disc has their typical array of resolutions and formats, including 24/192 DTS HD MA, Dolby Atmos 7.0.4 48 kHz, Auro-3D 96 kHz, SACD, and 2-channel 24/192 PCM. But that is realized primarily by people who have the means to spend vast amounts of money and are willing to live with the intrusion of very large speakers and bulky speaker wire, etc. Additionally, Parasound's A21 just won an … When it was designed in 2000, and for many subsequent years, it was the best power amp we could build while staying within the practical boundaries that define all of our products: “We believe most Parasound customers aren’t independently wealthy.”  Our unwavering commitment to Value Engineering continues to differentiate Parasound from other brands. They are similar to Crimson but have smaller conductors. Music – Tidal – Art Blakey & the Jazz Messengers –, Art Blakey & the Jazz Messengers were a jazz combo from the classic jazz period of the mid 20, Parasound states that they use Nichicon Gold Tune capacitors for the power supply, and that although these capacitors are no longer generally available, Parasound has an exclusive contract with Nichicon to continue supplying these caps to them. It has enough power (450 watts RMS into 8 Ohms) to drive any speaker, and the parts quality is a statement on its own. by John E. Johnson, Jr. | Jun 5, 2020 | Product Review. While it may always get second billing in the parade of human emotions, don't forget about anticipation's potent influence. It is pretty much the same at 8 Ohms and 4 Ohms. Violins are difficult instruments to reproduce because they are mostly very high frequencies, and this is where a lot of distortion can occur. Perhaps lower output impedance only applies to the output stage output impedance. We can’t remember the last time we reviewed a product such as this with bass and treble controls. Proof of Performance for the Parasound has been verified. "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’s Halo JC 1+ has a fast-start bias circuit that enables it to sound its best within minutes after turn-on. One of the most important of the Parasound’s capabilities is in dynamics. 1750), a light vocal or instrumental piece (e.g., the Scherzi musicali of Claudio Monteverdi, 1607), and, in the 19th century, an independent orchestral composition (https://www.britannica.com/art/scherzo). Below is a photo of the 20 foot cable. Among the upgraded parts used in the JC 1 are a 10-amp toroidal transformer enclosed in a steel canister filled with epoxy resin, Sanken output transistors, Harris hyperfast soft-recovery diodes, Nichicon Muse DC and local bypass capacitors, Nichicon Great Supply raw DC capacitors (for a total of 132,000µF capacitance), and Vampire continuous-cast copper wire and gold-plated OFC RCA jacks. And they get hot too, as does the top of the chassis! What made you decide to design a power amplifier with no compromises of any kind? I didn’t want to have the left channel the same length (20 feet) which would have necessitated coiling it up behind the speaker. Music – Tidal – Beethoven Violin Sonatas Nos. Here is their answer: The patented design and construction of Clarus Cables are unique requiring sophisticated engineering and manufacturing equipment. So, it is not just the ability to drive any speaker on the planet. Our frugality enables Parasound to purchase large quantities of superior parts, unmatched by present parts, that were discontinued long ago. The Parasound Halo JC 1 Monoblock Amplifiers Review By Wayne Donnelly, Superior Audio Magazine is the leading authority in high-end audiophile music and audio equipment reviews. Perhaps lower output impedance only applies to the output stage output impedance. Increasing the output to 20 Volts produced seven peaks on either side, at 8 Ohms. He believes they are superior to MOSFETs even though it is much easier to design a MOSFET output stage than a bi-polar output stage because bi-polar devices require more complex protection circuitry. IMD at 5 Volts output into 8 Ohms was 0.0049%. The sub-assemblies are then twisted together, or else held in fixtures in the case of flat cables, to provide the plus and minus conductors. According to Parasound… I continue to be amazed at how good the tracks from 60 year-old analog tapes sound. I would suggest that you get the cables with spade connectors for a more permanent attachment. The direct-coupled design uses a fast-acting DC servo circuit to keep DC from ever reaching the output. are reproduced as such by the JC 1+. Our business model is based on building products in which we invest heavily in R&D, with the expectation that they will remain in continuous production for many years. The list goes on and on. Resources of the larger companies that manufacture the component parts for Class D on a larger scale, the relative simplicity of manufacturing are cost effective because of the scale of the component manufacturers. This poses a real challenge to our supply chain management. It has brought prices down and quality up—mostly in the low and middle segments of the high-end audio and video markets. This is as good an album as any for you to introduce yourself to his talent. One camp expressed interest in expediting a JC 1 replacement that would abandon Class AB by abandoning an enormous linear power supply and whatever R&D time was required for a 6 month development time and vastly lower cost by simply using Pascal* X-PRO1 modules. "I've not heard any other monoblock entrant at or even close to this price that is able to recreate so many aspects of music with a more authentic voice. Music – Tidal – Julio Iglesias – Mexico – Released 5/8/2020. The difference between the 2. Since the core of these amps are the same how does one brand differentiate its amplifiers from another brand’s amplifiers using the same Class D module? That is normal. Rear-panel fittings include balanced and single-ended inputs, two sets of five-way binding-post outputs, a ground "lift" switch for when there are hum problems, and a bias-level switch allowing for reduced bias current, and thus cooler operation if needed. It will allow very quiet passages and very loud passages as well, without having to change the volume control. The sound is exemplary. I imagine there are new capacitors that sound as good, but I don’t blame Parasound with sticking to what works for them. The physical plant is a handsome chunk of gleaming, heavy-gauge aluminum fitted with large heatsinks on either side. Parasound has long been admired for their preamplifiers and power amplifiers. The overall sound is warm, almost tube-like, which I find very, very pleasant. They can be switched out of the signal path when not needed, giving a slightly clearer sound. In this case, I would recommend getting a 50 foot or 100 foot roll of 12 gauge stranded speaker cable from Monoprice (https://www.monoprice.com/product?p_id=2747) and some banana plugs (https://www.monoprice.com/product?p_id=9436) or spade connectors (https://www.amazon.com/Insulated-U-Type-Connector-Electrical-Terminal/dp/B07PG1NCQZ/ref=sr_1_18?dchild=1&keywords=spade+connectors&qid=1589736054&sr=8-18) (you will have to solder spade lugs to the cable). Distortion plus noise was 0.0066%. Textures and details that are glossed over in the A21 as one fat note. That is very important to a relaxing music listening experience. RS: The JC 1 was warmly received and enjoyed a very long and illustrious product life. I haven't studied San Francisco-based Parasound Products' business or its books, but the NAD model has clearly been an influence on Parasound, which was founded in 1982. We will see how various amplifiers perform with these tests as time goes along. It clips (1%) at 450 Watts RMS. I own both this amplifiers and is A McIntosh Mc152 VS Parasound 2250v2. Thirty years ago, the upstart audio company NAD revolutionized the manufacturing of consumer-electronics components by "internationalizing" the process. Instead of physically making products, NAD hired a project team in one location to design a product that was then built at a sub-contracted factory located elsewhere. Class G and H refer primarily to an amplifier’s power supply topology. Can you clarify? In the evaluation of costs, it is also necessary to consider the thousands of hours of R&D involved to perfect the final cable geometry as well as the initial tooling costs. Actual time spent with the Parasound products in my own system (NC2250 and NC5250) and a friends system (Halo JC1 … See above. Here is the cable attached to a Sonus faber Lilium speaker. I recently tried some generic speaker cable. It is very heavy and built like the proverbial tank. I found a review of the sound of various capacitors, and indeed, the Gold Tune caps sounded better than others. Since vinyl has a definite resurgence, will there be an increased amount of new analog tape recordings rather than just depending on old tape masters from the 1950’s and 1960’s? There are no generic components used in the construction of Clarus Cables. OPPO BDP-105 Universal Player (4), OPPO UDP-205 Universal Player (2), VPI-HR-X Turntable with Sumiko Blackbird MC Cartridge and Sumiko Palo Santos MC Cartridge, Manley Labs Steelhead Tube Phono Preamplifier (2), Balanced Audio Technology VK-5i Pure Class A Triode (Tube) Stereo Preamplifier (Fully Balanced), Balanced Audio Technology VK-500 Solid State Stereo Power Amplifier (Fully Balanced) (250 Watts per Channel), Pass Labs Xs Preamplifier, Pass Labs Xs 300 Monoblock Power Amplifiers (2) (300 Watts/each), Lamm LL1 Signature Stereo Pure Class A Triode (Tube) Preamplifier, MartinLogan CLX Full-Range Electrostatic Speakers, Magnepan 20.7 Planar-Magnetic Speakers, Paradigm Reference Signature SUB 2 Subwoofers (2), Custom-Built Computer for Audio Analysis, Accupel HDG-3000 Digital Color Signal Generator (1080i capable), Component Video and DVI Output, ColorFacts Pro Video Test and Calibration Software, Version 6.0, Spyder Sensor, SpectraPlus Audio Analysis Software, Audio Precision SYS-2722 Spectrum Analyzer, Staco 3PN2210B-DVM 22 Ampere Variable Transformer (for adjusting line voltage to 120 volts during amplifier power output tests), Pass Labs XP-20 Stereo Preamplifier, Classé SSP-800 Surround Sound Processor, Emotiva XMC-1 Surround Sound Processor, Classé CA-5200 Five-Channel Power Amplifier (200 Watts per Channel), Pass Labs X600.8 Power Amplifiers (4) (600 Watts/Each), Audio Control Phase Coupled Activator (Sub-Harmonic Generator), Carver Platinum Mark IV Ribbon Speakers, MartinLogan Summit X Hybrid Electrostatic Speakers (2) (Rear Left/Right), MartinLogan Stage X Hybrid Electrostatic Speakers (3) (Center and Sides Left/Right), Velodyne DD-18+ Subwoofer (3), HiFiMAN HE1000 Planar Magnetic Headphones, OPPO PM-1 Planar Magnetic Headphones, OPPO HA-1 Headphone Amplifier, Bryston BUC-1 USB Converter, Sony VPL-HW55ES 1,920 x 1,080p Digital Projector, 90″ (Diagonal) Stewart Grayhawk Projection Screen, Sony 75″ UHD Flat Panel Display, Clarus Audio and Wireworld cables, Clarus Concerto Power Conditioner with Crimson Power Cable. You have asked some interesting questions. The JC 1 was powerful, at 400 watts RMS into 8 Ohms. RS: I am not familiar with Class J and found no mention in Wikipedia. When Parasound released their JC 1 monoblock power amplifier in 2002, the A/V world was very impressed. This is due to excellence in recording, careful remastering, and, of course, having a good audio system to listen with. At 4 Ohms. Again, the Parasound JC 1+ amplifiers distinguished themselves. After soliciting some advice here and considering various brands and models, I decided on the Parasound … If you want something that is ready to go (for mass market receivers), and not generic, then consider something like these (https://www.audioadvisor.com/prodinfo.asp?number=AQT8NF&opt=1176|1189|1196|1201), or these (https://www.audioadvisor.com/prodinfo.asp?number=KK4TC&opt=6440|392|398|404) for the front left and right channels. We had some lively discussions within Parasound about this topic in the early stage of the JC 1+ development. RS: I don’t have sufficient familiarity to answer this since we discontinued production of our Halo C 1 and C 2 surround processors. It clips (1%) at 450 Watts RMS. This part of my job brings me enormous pleasure and satisfaction. In that time, Parasound has established itself as a quality manufacturer. Is there any new surround sound format coming? Approaching our 40th anniversary, Parasound proves this ideal. Familiarity with the product and manufacturer 3. At first look the Parasound Halo A 51 is an appealing and robust amplifier accented by brushed metal finish. RS:  I agree that we’ve reached a level that is truly superb. THD+N vs. According to a blurb by John Curl that accompanies the amp, the design is "based on a complementary differential J-FET input stage followed by two stages of selected push-pull MOSFETs ultimately driving nine pairs of the most powerful complementary bipolar power transistors that are available today.". While the JC 1+ is our most expensive product, it is also our greatest value, given its extraordinary performance/price ratio. I use banana plugs because I have to make changes easily when I am reviewing speakers. The JC 1+ power amplifier monoblock is their latest achievement, and it truly is an achievement to the highest … Here is the choir with the recording setup in a cathedral. All of these musicians were stars in their own right. This is because the amplifier was getting hot. At 4 Ohms, the number of peaks was increased by two on either side of the fundamentals. 5 fuses/amplier. These amps are magnificent performers in nearly every regard," raves Greg Weaver in his review for Positive Feedbackonline magazine. Dynamic, clarity, detail. Curl has designed Parasound products since 1989, most to specific price points and aimed at the very competitive middle of the high-end market. They are worth the price. Parasound says it is the result of challenging Curl to 'distil the essence of two JC1 monoblocks into a single chassis' in response to demand from customers who 'often tell us they love … THD+N vs. Power Output, at 8 Ohms, is shown below. Power supply capacitance increased from 132,000 µF to 198,000 µF (that is 1/5th of a Farad). For the banana plugs, strip about ½” of the end of each conductor and twist the strands before unscrewing the banana plug and inserting the stripped conductor, and then retightening the plug. If you have relatively inexpensive mass-market receiver and speakers, then such cables would not be appropriate. It … I decided that I would never use such cable again. Positive reviews by both leading audio reviewers and customers alike 2. My position is different. The output stage supplies current, for which John Curl specifies bi-polar devices. We like and respect Pascal’s products and staff. The JC 1 took up … Even at idle, the JC 1 puts out plenty of heat, so ample ventilation is critical. Parasound did a thorough job in writing the manual for the A21+. Power supply capacitance increased from 132,000 µF to 198,000 µF (that is 1/5. Music – The Beauty that Still Remains – 2L Norway – 2020. And despite what the purists say, on occasion, for example when playing a poorly engineered recording, they can be useful. RS: I haven’t paid enough attention to video to have an informed opinion. I had thought that lower output impedance is best. Good for life, I think. There is also voltage sag that occurs with 120 VAC wall socket supplies during high current demand. When, in 2014, Curl identified new opportunities for improvements that didn’t exist when the JC 1 was designed years ago, I considered it my responsibility to again build the best amplifier I could. There are also facilities for automatic turn-on (by an audio signal or an external trigger voltage), which can be daisy-chained to turn on other components. If you have relatively inexpensive mass-market receiver and speakers, then such cables would not be appropriate. Its very high power (450 watts into 8 ohms) delivers a tremendous dynamic range. At 20 Volts, 8 Ohms, IMD increased to 0.0204%. Toward the end of this review, I received the new Parasound Halo P6 preamp that will solve this woe. "Honestly, I cannot think of a pair of monoblocks that offer a view anywhere near this close to the top of the heap for anywhere near their aski… I know, I know, that is a lot of money for a speaker cable, but it sure is not going to short out and pop my power amplifier protection circuit. 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