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Top Posters In This Topic 45 78 Popular Posts Everest June 6, Everest June 30, Posted Images. Sergey57 Posted April 20, Gryaznov Posted April 20, Posted April 21, Posted April 22, Its quick transients, detailed soundstage, and powerful bass easily led me down music's pathways with not a moment's hesitation. In fact, the JS1 was unmistakably balanced toward the fast, immediate, and revealing side, rather than to what some might consider more traditional Jadis values, such as harmonic richness.
Don't get nervous. Hand in hand with this faster-than-fast presentation was a harmonic bloom, a truth of timbre that could not be denied, and which supported the detail and speed that give music its life. Don't slam the door! I never managed to take any notes during this beautiful and compelling song; I was too moved and affected-responses that were previously only available from analog, mes amis.
I didn't expect much from a standard-issue Columbia CD what they did to Miles! The title track was dynamic, expansive, exciting, and welcoming--especially through the upper mids. In a word, involving. The Jadis combo handled deep bass with grace and power. The Jadis knocked it out deep, tight, and tuneful and ambient, of course , with no apologies tendered or required..
The extension, depth, and quality of the bass were further enhanced by the hybrid Lamm M1. The critical midbass? C'tait facile! Put on Dean Peer's Ucmss Redstone RP , close your eyes, and hear articulated and expressive solo electric bass like you've never experienced. I didn't realize they knew each other! It sounded powerful, redolent, romantic, expressive, brooding, and achingly, hauntingly beautiful--just as it ought to.
With the Jadis processor, any recording that wasn't completely hacked to death in the mix had a chance of sounding good. Take my Columbia, please! Believe me, you don't want an expensive Formula One front end on exotic fuels that make most CDs sound like crap. You pay the big bucks, you want music, and the Jadis delivers, especially when partnered with its own J1 Drive.
So what have we got here? Plenty of state-of-the-art bass, tight and well- controlled, if not quite as deep as that managed by the Krell; a midrange that most manufacturers can only dream about as they toss and turn at night, trying to figure out how they can deliver this type of sound at a more reasonable price; and crisp highs that offer an almost perfect blend of clarity, extension, and harmonic integrity when the J1 and the JS1 are tied together.
It's still digital, kiddies; but I, for one, could easily live happily ever after with a front end that sounds this good. One afternoon, I found myself on my knees yet again , cleaning the JS1 with the audiophile's cleaning companion:. Spic'N'Span's Cinch.
It leaves no residue, audio homemakers! I felt like Jeeves doing the silver. If ever a group of front-end calculators seemed like they were from different digital planets, these are they! The Krell Reference 64's bass was better than that of the Jadis JS1, but its mid range and highs, while not quite as grain-less, open, or bloomy as those of the French unit, were nothing to be ashamed of.
This was coupled with a soundstage that was a touch less immediate and enveloping than that of the Jadis. In most cases, the J1's balance of sound seemed perfectly chosen, the transport sounding splendid with most processors.
In any case, those of you who have bought into the Krell sound and design aesthetic will discover much happiness with the Reference 64 and, to a lesser extent, the DT Time for a little tuning! The Forsell sounded more like the Jadis, especially with its high bloom factor and enveloping acoustic. The Swedish stuff sounded very liquid, no question. These things will arrive in the fullness of Forsellian Time, and ink will be spilled when appropriate.
The Jadis had a maximum output level of 6. These high values are due to an undersized output coupling capacitor. Nevertheless, the balanced output impedance was even higher—double that of the single-ended output impedance 5. The Jadis clipped when it was asked to drive a low ohm load impedance. The very high source impedance pro vided by the Jadis suggests that it should be used with high-input impedance preamplifiers, and that passive level controls are out of the question.
If your preamp is pin 2 hot very likely , the Jadis will be inverting from the balanced out puts. Having your dealer reverse the pin 2 and pin 3 wires on the XLR jacks will make the Jadis non-inverting when used with pin 2 hot preamps. Although the Jadis locked to any of the three standard sampling frequencies 32kHz, The scale is, how ever, still calibrated at 0. The huge de-emphasis error will cause pre-emphasized CDs to sound very bright nearly a 3dB boost at 10kHz.
The irregular shape of the frequency-response curve above 2kHz is caused by passband ripple in the Philips SAA digital filter. In the crosstalk plot fig. The peaks and dips above 1kHz are unusual, particularly because their frequencies are slightly different between the left and right channels.
The overall noise level is also moderately high between 20Hz and Hz. Note that I installed the power supply well away from the processor for these measurements. With the power supply near the processor, the power-supply noise was much greater. I also tried to minimize the noise with different grounding schemes and AC cheater plugs. The results shown here represent the lowest noise level I could achieve. Extending the measurement band width and driving the Jadis with digital silence a code of all zeros produced the plot of fig.
The most salient characteristic is the presence of energy in the left channel at 44kHz, probably caused by leakage of a digital clock into the left- channel analog audio circuit. The power- supply noise at Hz is again apparent.
At dB, the linearity error was about 1. Ideally, the five traces would perfectly overlap, looking like a single trace. The Jadis produced a very clean inter- modulation-distortion spectrum fig. The 1kHz difference component is the only IM product of consequence, but is less than 20dB above the noise floor. The transport driving the Jadis was a PS Audio Lambda transport the same transport and interconnect we use for all our jitter measurements , and the test signals were taken from the CBS Test Disc.
The jitter varied in RMS level Hz - 22kHz bandwidth from a low of 57 picoseconds an input signal of all zeros to a high of i25ps input data representing a 10kHz, 0dBFS sinewave. The spectrum is made up of many periodic jitter components, which over shadow the signal-correlated jitter at 1kHz, 2kHz, and 3kHz. The RMS jitter level was 85ps. When driving the Jadis with a 1kHz, —90dB sinewave, the jitter spectrum looks very different fig. Now the signal-correlated components dominate, and the rest of the plot is very clean the large spike in jitter energy at 7.
The RMS level was also 85ps. We can see just a few periodic components, with the 7. The RMS jitter level measured 57ps. Finally, I drove the Jadis with a 10kHz full-scale sinewave, which produced the plot of fig. Note the spike of energy at the test-signal frequency of 10khz, and also the relatively clean trace overall. The RMS level, however, increased to ps. Note that these RMS jitter levels are on a 5.
Moreover, 1-bit type converters as used in the Jadis are more sensitive to jitter, and are also susceptible to a much wider band of jitter than are multibit converters. Overall, the Jadis processor showed fir from exemplary bench performance The large de-emphasis error probably caused by a wrong-value capacitor or resistor , the presence of Hz power— supply noise in the audio circuits, the linearity error, and the poor noise— modulation performance do not befit a product so costly.
Nonetheless, what matters is how a component sounds, not how it measures. Or are you paying for mere cachet and social standing among a small group of well-heeled and possibly out-of-touch audio cognoscenti? Detailed, immediate, fast, and exciting, it developed a first-class sense of pace, aided by a deep, powerful, expressive, and differentiated bass line.
Macro-dynamics leaped from the soundfield, riveting our guests to the Ribbon Chair time after time. Startle factor: ten out of ten. At the same time, it proved completely sophisticated in its handling of micro-dynamics; God is in the details. It was all subtlety, elegance, and nuanced microdynamic shadings.
Used Jadis JD1 CD players for sale on + second hand hifi sites & shops. Use Hifi Shark to monitor pricing and global availability. We had the good fortune to come across three of these remarkable and gorgeous statement piece CD transports. Two sold quickly, and this is the last of the. I bought this evil 1 year back and I am still crazy with it. I'm always amazed everytime I feed it a new CD. The sound comes from this player is really.