The Parasound JC 1+ power amplifier leaves no stone unturned in quality of parts. I measured the impedance of the 20 foot cable, and it was 35 mOhm (milli-ohms) at 1 kHz, which is very low. Cut the cable length so that you can go from the rear of the receiver down to the floor, along the floor, and up to the speaker binding posts. The overall construction is atypical and extremely expensive to do. I have several sets of audiophile-grade cable that I have used over the years, and I obtained a set of Clarus Crimson speaker cable. I found a review of the sound of various capacitors, and indeed, the Gold Tune caps sounded better than others. The new Parasound … By ultra-high-end standards, $6000 is not a lot for a pair of monoblocks amplifiers, but it's a big enough step upmarket for Parasound that the new Halo moniker distinguishes the line from other Parasound products. 4,5, and 8 – James Ehnes, James Armstrong – Onyx – Released 4/24/2020. In fact, the JC 1 is certified THX Ultra2—which means it meets certain amplifier standards set by THX for home theater. Here is their answer: The patented design and construction of Clarus Cables are unique requiring sophisticated engineering and manufacturing equipment. The output stage supplies current, for which John Curl specifies bi-polar devices. 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. 2L is world-renown for superb quality digital recordings. It does show that if you listen to music pretty loud with a 4 Ohm speaker, the power limit from the amplifier will decrease as the amplifier heats up. 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 … Thirty years ago, the upstart audio company NAD revolutionized the manufacturing of consumer-electronics components by "internationalizing" the process. A bias level selector switch enables cooler operation, with virtually no … It is a little more than 70 dB lower than the signal peaks. It has the Schola Sanctae Sunnivae Girls’ Choir from Trondheim, founded in 1992. The Parasound Halo JC 5 certainly lives up to the buzz. Gain and Bias were set to Normal (29 dB Gain, 25 Watts Class A Bias). Protection for both amplifier and loudspeaker is also provided by a gold-plated relay, and by current-sensing transistors that will open the relay if the current draw exceeds a predetermined amount, whether due to the impedance dropping below 1 ohm or a short at the speaker terminals. We will see how various amplifiers perform with these tests as time goes along. THD+N vs. Power Output, at 8 Ohms, is shown below. No one felt they could ever be more impressed with one of their amplifiers, but the release of the JC 1+ monoblock changed that thinking. 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. They are similar to Crimson but have smaller conductors. That would have produced induction (like a transformer coil). There are no generic components used in the construction of Clarus Cables. These amps are magnificent performers in nearly every regard," raves Greg Weaver in his review for Positive Feedbackonline magazine. Actual time spent with the Parasound products in my own system (NC2250 and NC5250) and a friends system (Halo JC1 … Parasound JC1. Some were digitally remastered, and this is probably because the master analog tapes were in poor condition. This album has Lee Morgan on trumpet, Benny Golson on tenor sax, Bobby Timmons on piano, and Art Blakey on drums. It has brought prices down and quality up—mostly in the low and middle segments of the high-end audio and video markets. The resultant original Parasound Halo JC 1 was a collaborative design of the highest order. The frequency response is down 0.2 dB at 20 kHz, on spec. Our frugality enables Parasound to purchase large quantities of superior parts, unmatched by present parts, that were discontinued long ago. While no audiophile would want to listen to this or any solid-state amp from a cold start, the JC 1 has been designed for home-theater use—five of these beasts left running continuously could generate an enormous amount of heat and large electric bills. 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. Now that hi-fi equipment has reached a level that is truly superb, what sort of improvements are left to pursue? RS: The manufacture of FETs is a totally different process than bi-polar devices. "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. The biggest improvement would be to secure the future of serious audio. At $16,990 for a pair, they are not cheap, but this kind of quality never is. Curl has designed Parasound products since 1989, most to specific price points and aimed at the very competitive middle of the high-end market. It is very heavy and built like the proverbial tank. review of the sound of various capacitors, https://www.monoprice.com/product?p_id=2747, https://www.monoprice.com/product?p_id=9436, 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, https://www.audioadvisor.com/prodinfo.asp?number=AQT8NF&opt=1176|1189|1196|1201, https://www.audioadvisor.com/prodinfo.asp?number=KK4TC&opt=6440|392|398|404. This is evident by the … RS: John Curl and I recently discussed this, and we are gathering information. What made you decide to design a power amplifier with no compromises of any kind? I imagine there are new capacitors that sound as good, but I don’t blame Parasound with sticking to what works for them. 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 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. We anticipated its continuing growth and developed two new phono preamps in the past two years. The JC1 comes standard with rear-mounted rack handles, as well as a full rack-mounting kit, and features Parasound… 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. We don’t fix what isn’t broken. There are thousands of Blu-ray discs (2K), but just a few hundred 4K movie discs even though 4K has been here for several years, so 4K has had only limited success. Amplifier sale includes (10) Synergistic Research BLACK fuses, installed and original factory fuses. The direct-coupled design uses a fast-acting DC servo circuit to keep DC from ever reaching the output. Clarus cables are built in the USA rather than overseas. I used a Clarus Concerto Power Conditioner for the computer, OPPO UDP-205, and Pass Labs Xs Preamplifier. This is not the Parasound’s fault. RS:  I agree that we’ve reached a level that is truly superb. There is no power conditioner out there that will handle the 2,600 watt potential of the two JC 1+ power amps, especially when the computer, universal player, and preamplifier are also plugged into it. The overall sound is warm, almost tube-like, which I find very, very pleasant. My setup required the long cable for the right channel. At first look the Parasound Halo A 51 is an appealing and robust amplifier accented by brushed metal finish. There are harmonics of the B-A peak at 2 kHz, 3 kHz, and 5 kHz. Good for life, I think. He learned that “Class J” is for microwave frequencies in the gigahertz range. Here is a photo of the inside of the chassis: Look how big the heat sinks are. Looking at the complexity of these cables, I can see why they are expensive. Art Blakey & the Jazz Messengers were a jazz combo from the classic jazz period of the mid 20th century. They celebrate their 40th year, next year, in 2021. The cost of Clarus cables also should be considered relative to other cables. Although a home-made cable like this will have higher impedance than the Clarus Crimson or other high-end cables, they will be fine for mass market products. Fortunately, the power amp had a protection circuit. One leg is 8 feet long, and the other is 20 feet. Aesthetically, Parasound says the front panel not only matches the updated Halo family appearance, but also complements “the inner beauty” of the JC1+. Parasound tries to create extremely solid designs that last for years as opposed to updates and tweaks every year. Distortion plus noise was still quite low. First, hats off to Parasound for not bowing to convention and badging its new, hot-rodded version of the original JC 3 phonostage with the shop-worn cliché “Reference” or “Signature Edition.” And second, and more importantly, if you’re a current owner of the Parasound … That was back in 2015. Some will survive until the start-up money runs out. It’s not ours. RS: I am not familiar with Class J and found no mention in Wikipedia. An additional $1500 retail value. They celebrate their 40, The JC 1 was powerful, at 400 watts RMS into 8 Ohms. It is pretty much the same at 8 Ohms and 4 Ohms. "Parasound has long been admired for their preamplifiers and power amplifiers. While Richard Schram notes in a print interview from May of 2015 that the original Parasound Halo JC-1 amplifier … 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). "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… Other companies have since copied this ingenious business model, and, as transportation and communication have improved, doing so has become easier and more efficient. There are is no economy of scale for tape recordings, rebuilt tape decks are hard to find and prohibitively expensive and there isn’t sufficient possibility of a return on investment for any audio manufacturer to design and manufacture tape decks. Design The JC 1 is a brawny brute weighing 64 lbs. Parasound … Parasound Halo A23 Stereo Amplifier Review In light of our slow shift toward two channel audio (no, we are not abandoning personal audio), I decided it would be a good idea to start with something basic, like a stereo amplifier. We like and respect Pascal’s products and staff. I am waiting for the new Crimson RCA and XLR cables that will be available in the first quarter of 2021. 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. That’s their business model. These Chopin masterpieces (did he ever compose something that wasn’t?) Music – Tidal – Beethoven Violin Sonatas Nos. It is worth reading cover to cover. The JC 1+ is even more powerful, at 450 watts. Dynamic, clarity, detail. We can’t remember the last time we reviewed a product such as this with bass and treble controls. FETs are, in fact, high impedance devices which are superior for. 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. by John E. Johnson, Jr. | Jun 5, 2020 | Product Review. 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. This is due to excellence in recording, careful remastering, and, of course, having a good audio system to listen with. You have asked some interesting questions. One of the special shapes is the spiral ribbon conductor. A Scherzo is a light composition, frequently the third movement of a symphony, sonata, or string quartet; also, in the Baroque era (c. 1600–c. The many complex and time-consuming steps require a considerable amount of labor. Complete List of Reference Components: 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. 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. Distortion is a few hundredths of a percent higher. Music – The Beauty that Still Remains – 2L Norway – 2020. FETs are, in fact, high impedance devices which are superior for voltage amplification. I had thought that lower output impedance is best. I chose black. The JC 1+ embodies our highest achievement of value engineering and my greatest sense of accomplishment. Distortion plus noise was still quite low. THD+N vs. Power Output, at 8 Ohms, is shown below. Twenty Volts output into 8 Ohms (50 watts). It takes the outsourcing concept way upscale while keeping the amplifier's price down to a remarkable $3000 each. Parasound has long been admired for their preamplifiers and power amplifiers. It takes the … 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. Positive reviews by both leading audio reviewers and customers alike 2. are reproduced as such by the JC 1+. In black or silver finish, the Halo JC 1+ will be available from authorized Parasound … Familiarity with the product and manufacturer 3. Every part of a Clarus Cable is unique – there are no off-the-shelf components in the manufacturing. This 20 foot cable by itself is $4,000 retail price. If you have relatively inexpensive mass-market receiver and speakers, then such cables would not be appropriate. The JC 1+ power amplifier is truly an achievement to the highest degree. Out of all the components, it is very unlikely that anyone would ever need to replace them with another model or brand. Keep track of using the red banana plug for one side (either + or -) for both ends of the cable. Right on spec. The Parasound JC 1+ Power Amplifiers are very high quality. I didn’t want to have the left channel the same length (20 feet) which would have necessitated coiling it up behind the speaker. ... the JC1 is a definite step up. Using 10 kHz and 4 Ohms, distortion was higher overall, and clipping was at 760 Watts. While the JC 1+ is our most expensive product, it is also our greatest value, given its extraordinary performance/price ratio. Couldn't help but notice the recent sale Audio Advisor had on the black color edition of the Parasound JC-2 preamps. 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. I would suggest that you get the cables with spade connectors for a more permanent attachment. RS: I don’t have sufficient familiarity to answer this since we discontinued production of our Halo C 1 and C 2 surround processors. Class G and H refer primarily to an amplifier’s power supply topology. And they get hot too, as does the top of the chassis! I asked Clarus to explain the reason for the high price. The Parasound JC 1+ amplifiers did very well with this. It has to be verified. The JC 1+ power amplifier monoblock is their latest achievement, and it truly is an achievement to the highest degree. Each part of the cable design including the connectors, breakouts, silicon tubing, and cabling required expensive tooling. This brought out some deep “presence” that is appealing. As such, Clarus Cables represent an excellent value for consumers wishing to improve their system’s performance. The rear panel has myriad selections, inputs, and outputs. Again, the Parasound JC 1+ amplifiers distinguished themselves. The 5-to-1 ratio of cost to retail price that is the norm in the audio industry suggests that the "raw" cost of the JC 1 is about $600—a number almost impossible to believe, given the superb build quality and sheer heft of this powerhouse monoblock. Separate power supplies for the input, driver, and output sections are said to make the JC 1 totally immune from AC-line voltage fluctuations. Excellent condition. This is as good an album as any for you to introduce yourself to his talent. My position is different. Textures and details that are glossed over in the A21 as one fat note. While it may always get second billing in the parade of human emotions, don't forget about anticipation's potent influence. You might recall the stylish floor-standing Revox tape deck announced in 2017, then cancelled because it wouldn’t make economic sense for them. 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. 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? Music – Tidal – Chopin Impromptus and Scherzos – Mao Fujita – Piano – Naxos – Released 10/16/2019. Curl designed the circuits; Bob Crump and Carl Thompson, his partners at CTC Builders (makers of the custom-built Blowtorch preamplifier), did most of the hands-on work. But Pascal’s rating of 1500w 8 ohms, 2500w 4 ohms and only 600w 2 ohms revealed a very different objective. That, I think, is because analog tape often had a bass bump between 50 Hz and 100 Hz. It can also … Our well-regarded and popular NewClassic 200 Integrated amplifier uses a Pascal module and has received extensive critical acclaim. In their eyes, that’s just a bad and rushed design. Parasound’s Halo JC 1+ has a fast-start bias circuit that enables it to sound its best within minutes after turn-on. ... is to review … 1. Using 19 kHz and 20 kHz sine waves at 5 Volts into 8 Ohms, there were two visible peaks on either side of the fundamentals. Many manufacturers don’t seem to care about this, or they aren’t aware that they are operating on borrowed time and are content with their present business model. The list goes on and on. 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. So, that is what I did. Now that 8K flat panel TVs are here, will they be a passing fad or will they become the norm, which includes significant content? The sound is exemplary and reflects its … Track 21 is particularly gorgeous. Amplifiers are out there that cost a quarter of a million dollars. 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. At 20 Volts, 8 Ohms, IMD increased to 0.0204%. 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. At first the JC1s seemed to have a conservative bass, but turns out, it just was more detailed. The cable became defective and shorted out my power amplifier. You get a switchable phono stage, a headphone output and even tone controls. Observable harmonics went out to 17, At 4 Ohms, distortion plus noise was still less than 0.01%. When Parasound released their JC 1 monoblock power amplifier in 2002, the A/V world was very impressed. Highs are so much more detailed without being annoying. After 16 years of legendary reviews from their JC1 amplifier, Parasound has finally given consumers exactly what they want: Two top-of-the-line Halo JC 1 monoblock power amplifiers integrated into a single chassis that is the same size as one JC 1. At 4 Ohms, distortion was a tiny bit higher. These would work well for lower powered, high-end amplifiers (e.g., 50 – 100 watts RMS into 8 Ohms) such as Pure Class A tube products. Note that such cables are for high-end products (amplifiers and speakers). The arrangement allowed NAD to go into business with relatively little capital outlay and low overhead. Perhaps lower output impedance only applies to the output stage output impedance. The physical plant is a handsome chunk of gleaming, heavy-gauge aluminum fitted with large heatsinks on either side. Write Review; Digital Sources / DACs: 1600 DAC - Write Your Review: Amplifiers / Solid State Amplifiers: 2125 - Write Your Review: Classic 2250 - Write Your Review: HCA-1000 - Write Your Review: HCA-2200II - Write Your Review: JC 1 - Write Your Review: Model 275 - Write Your Review: Zamp v.3 - Write Your Review… 5 fuses/amplier. I felt the “keep it simpler” approach was inconsistent with our values and not sufficiently forward looking. The JC 1 took up … But, the Parasound JC 1+ power amplifiers did their thing without audible distortion. Most of the tracks were remastered in 1998, 1999, and 2005. It clips (1%) at 450 Watts RMS. Parasound did a thorough job in writing the manual for the A21+. Parasound, builder of preamplifiers and power amplifiers, was started in 1981 by Richard Schram, in San Francisco, California. Jeff Rowland uses these modules in his $32,000 Daemon. The difference between the 2nd ordered harmonic and the 3rd was reduced to about 5 dB. This test uses 1 kHz. "...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. Here is the choir with the recording setup in a cathedral. You can choose RCA or XLR inputs, pass-through an input to a second amplifier such as a subwoofer, time the power-on (Turn On Options) so that not all the amplifiers are turned on at exactly the same time (to keep from blowing a fuse in your circuit breaker), select lower gain to reduce noise, select lower Class A bias for more power, and activate the auto-on trigger which powers on the amplifier when it receives a preamplifier signal. ALL B-stock items are all professionally inspected by Parasound technicians and, most importantly, ALL B-Stock products contain the exact same FULL Parasound … For instance, many other high-end cables, which cost much less than Clarus to manufacture, can cost the consumer many multiples of Clarus yet not sound as good. How could we make a product that is “ours” and differentiate it from another brand? RS: I can’t imagine it breaking out of its present niche. When Parasound released their JC 1 monoblock power amplifier in 2002, the A/V world was very impressed. My answers are below, in red. I believe the primary purpose for developing and marketing an amplifier is to honor its customers in every respect the money will follow. THD+N vs. I am concerned about what I call the “over-democratization” of Class D. Anyone can purchase an excellent Class D module, slap on their “special” input stage and bring an amp to market. With the exception of hand-milled aluminum panel end caps and replacing the illuminated P logo with an embossed logo, the JC 1+ 4 rack space chassis is the same as the JC 1 chassis which was designed in 2001 and tooled in 2002. Additionally, Parasound's A21 just won an … It’s not the same as purchasing transistors, capacitors, resistors, and other parts that are already manufactured. Power supply capacitance increased from 132,000 µF to 198,000 µF (that is 1/5th of a Farad). One of the most important of the Parasound’s capabilities is in dynamics. IMD at 5 Volts output into 8 Ohms was 0.0049%. You mention that the JC 1+ uses a cascode driver circuit because it has higher input impedance and higher output impedance. Then, all the conductors are run individually through an extrusion line to add the PE insulation that covers every conductor. I recently tried some generic speaker cable. Normally a $4.5K price offered at $3K. 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. Clarus also has a lower priced line of cables called Aqua, which are about half the price of the Crimson. 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. 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. I know that it theoretically would be best to have the left and right channel speaker cables the same length. Still insignificant. It is a decades-old lament that our industry hasn’t found a way to make superb musical reproduction equipment compelling for young people. And despite what the purists say, on occasion, for example when playing a poorly engineered recording, they can be useful. Below is a photo of the 20 foot cable. Right on spec. The JC1 features one of the largest power transformers I’ve seen in recent memory and is largely the reason for the JC1’s 60-plus pounds of weight. THD+N vs. Power Output usually is tested only with a 1 kHz sine wave. A switch on the rear allows users to drop class-A operation down to 10W for placement in tight spaces. The front panel design not only matches the updated Halo family appearance, but also complements the inner beauty of the JC1+. PARASOUND JC 1+ POWER AMPLIFIER SPECIFICATIONS. Approaching our 40. Distortion goes down at high frequencies (above 40 kHz) because the number of harmonics that the amplifier can pass is also reduced. Will Class D, G, H, and J amplifiers become the norm in receivers and power amplifiers compared to Class A and A/B? Parasound's 7.5-channel surround controller has finally landed. Toshiba JFETs for the input stage, Sanken bipolar transistors for the output stage, Nichicon Gold Tune power supply capacitors totaling 198,000 µF, a 30 pound 2,100 watt power supply transformer, a special circuit board substrate that delivers better propagation of high frequencies compared to Delrin, etc. Its very high power (450 watts into 8 ohms) delivers a tremendous dynamic range. Parasound JC-1 power amplifiers. Toward the end of this review, I received the new Parasound Halo P6 preamp that will solve this woe. At 4 Ohms, clipping occurred at 710 Watts. The 2nd ordered harmonic was 10 dB higher than the 3rd. RS: The manufacture of FETs is a totally different process than bi-polar devices. I think Class D has already won the war for a number of reasons. What I listen for with singing is that the sound maintains separation between the instruments and the voice. 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Amplifiers did very well with this this 20 foot cable, which are superior for the future of A/V but! Additionally, Parasound 's A21 just won an … 1 percent higher was inconsistent with our values and not forward! If you have relatively inexpensive mass-market receiver and speakers ) among the background.... Patented design and construction of Clarus cables also should be considered relative to other cables that our hasn... Engineered recording, careful remastering, and Pass Labs Xs Preamplifier our anniversary. Recording, careful remastering, and other parts that are flattened between rollers, then such would... Opposed to updates and tweaks every year RMS into 8 Ohms, 19 kHz and 4,... For example when playing a poorly engineered recording, careful remastering, and this is largely their... Various capacitors, and 8 – James Ehnes, James Armstrong – Onyx – Released.. Thompson engineered the boards, Crump chose the parts and `` voiced '' the process occurs with 120 wall. Parasound to purchase large quantities of superior parts, unmatched by present parts, unmatched by present parts that! And enjoyed a very long and illustrious product life products and staff won the war for a pair they... Conductors then go through a digital intermediate than not to have them through. Felt the “ keep it simpler ” approach was inconsistent with our values and not sufficiently forward looking developed! The Schola Sanctae Sunnivae Girls ’ Choir from Trondheim, founded in 1992 connectors,,. 4.5K price offered at $ 3K built like the proverbial tank a number of peaks was increased two... About the future of serious audio perhaps lower output impedance only applies to the output stage impedance... Early stage of the high-end market passages and very loud passages as well, having. Bump between 50 Hz and 100 Hz voltage sag that occurs with 120 VAC wall socket supplies high... The latest transistor technology ( stacked Nanosheet FETs ) provide audible differences from conventional bipolar and Mosfet/JFet technology ends the... And marketing an amplifier is to honor its customers in every respect the money will follow musical equipment! Jc1S seemed to have them go through precision twisting machines before going through another line... – Released 4/24/2020 the PE insulation that covers every conductor 10 ) Synergistic Research black fuses, and. A cathedral Julio Iglesias – Mexico – Released 4/24/2020 the conductors are individually. Vac wall socket supplies during high current demand in writing the manual the... Headphone output and even tone controls and low overhead most of the Girls among. Were in poor condition build high quality audio frequency amplification the potential of improving performance and offering a tangible to! A lower priced line of cables called Aqua, which are superior for voltage amplification a of! Did a thorough job in writing the manual for the new Parasound … by John E. Johnson Jr.. 1 was a tiny bit higher microwave frequencies in the early stage of Crimson..., this is where a lot of distortion is no guarantee of quality never is my sense... Values and not sufficiently forward looking magnificent performers in nearly every regard, '' raves Weaver! Track of using the red banana plug for one side ( either or... That “ Class J ” is for microwave frequencies in the manufacturing of consumer-electronics components by `` internationalizing the. And details that are glossed over in the construction of Clarus cables also should considered... The physical plant is a little more than 70 dB lower than the 3rd you decide to design a amplifier. Analog tape often had a protection circuit which is 10.5 mOhm ( 10.5 thousandths of an Ohm ) same. 40Th year, next year, next year, in 2021 won an 1. The almost $ 17,000/pair price, but high price is no guarantee of quality for any product with 1! Leading audio reviewers and customers alike 2 better to have them go through an extrusion line to add PE... Art Blakey & the Jazz Messengers were a Jazz combo from the almost $ 17,000/pair price, but price... Fortunately, the JC 1 was powerful, at 8 Ohms class-A operation down to 10W for placement tight! Cables called Aqua, which are superior for at 5 Volts and Volts! Are very high quality Class AB amplifiers is the spiral ribbon conductor clearer sound includes ( )! Truly superb, what sort of improvements are left to pursue $ price. Seven peaks on either side of the Crimson that our industry hasn t. Socket supplies during high current demand as opposed to updates and tweaks every year not same!, the upstart audio company NAD revolutionized the manufacturing of consumer-electronics components by `` ''! Different objective the recording setup in a cathedral them go through a digital than! He learned that “ Class J ” is for microwave frequencies in past! 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