Oracle Delphi MK VI version 2
Just arrived is the legendary Oracle Delphi turntable setup with the WTL tonearm. This is arguably one of the most beautiful turntables ever made. The sound is just stunning with great musicality and flow. Come by for a listen! The global concept of the new Oracle Delphi MkVI, now in its 35th year, was developed around the control of micro vibrations and micro calibration. The micro vibration can be introduced from the inside as well as from the outside. We have to understand that the micro movement of the phono cartridge’s stylus is extremely vulnerable when capturing the minute deviations from the record groove. At the same time this stylus is extremely powerful because it sends through the system a vibrational energy that can and will stimulate other vulnerable components. This will also translate into resonances. How can it happen? Resonances generated by the tonearm bearings and the tonearm tube will go back all the way to the stylus and induce a coloration that is in no way related to the music being reproduced. Tonearm bearings play an extremely important role in the quality and integrity of the signal reproduction. Any micro movement within the tonearm bearings will also translate into a mechanical cancellation (two objects moving simultaneously in opposite directions). This means that the stylus will not capture all the micro signals engraved on the vinyl recording. When we think about the vibrational energy generated from the outside of the record player it is extremely difficult to identify all the sources that can affect the system but it is possible to regroup most of them into 3 categories: electrical, mechanical and acoustical. I will not address the electrical aspect here. For the other two categories the best option would be to completely isolate the player from the sound room in order to protect it against the sound pressure level. As for vibration, the use of an extremely massive platform would help keeping the unwanted mechanical energy outside of the picture. This would not be realistic and certainly not aesthetically successful! The magnetic isolation can be a solution but at the same time it can be a significant part of the problem. What changes have been made to the drive modules? The Delphi MkVI is a work of technical development and design aesthetics. As far as the aluminum drive module is concerned we made a cosmetic change to reach the visual balance of the new MkVI. The major change on the circuit with respect to the MkV series was to go from a circuit in fully discrete components to a surface mount configuration. The MkVI Second Generation version was modified to increase the current supply to the motor resulting in a motor torque increase of about 15%. Although minor this upgrade has a significant impact on the sonic performance of the Delphi MkVI Second Generation. We use a low voltage, precise synchronous AC motor on the Delphi MkVI Second Generation. What is the influence of the bigger sub-chassis on the performance of the MkVI? The floating sub-chassis of the Delphi MkVI was made larger than its predecessors. By using a larger sub-chassis we have improved the weight distribution simplifying the suspension calibration. The purpose of the counter-weight is to add more mass to the front left suspension tower to more efficiently counter-balance the mass of the tonearm. The coupling of the counter-weight to the floating sub-chassis also contributes in reducing internal sub-chassis resonances. Its positioning, well in sight on the inferior part of the sub-chassis, is a design detail meant to bring the Delphi a more massive look. The central part of the floating sub-chassis was made larger which had for effect to reduce the length of the three legs extending towards the suspension towers. We also increased the rigidity of the tonearm mounting section by widening the tonearm mounting ring support by about 35 percent. How does the MkVI bearing system differs from the MkV? The MkVI bearing system maintained the 6 point contact configuration that was developed for the MkV. We are now using a different material for the 6 calibration set screws. The main advantage of the MkVI bearing lies in the fact that the 6 new precision set screws are virtually inert to temperature change. This allows us to calibrate the main bearing system with greater accuracy and closer tolerances. This has a huge and direct impact on the signal reproduction quality of the Delphi MkVI. The MkVI bottom trust plate has been replaced with a polyamide-imide (PAI) high strength plastic with the highest strength and stiffness of any thermoplastic. It has outstanding resistance to wear. The impact of this new trust plate is extremely significant on the sound quality because of its ability to limit the noise generated by the spinning platter. The sonic benefits of the new MkVI bearing system are extremely significant and they are drastically revealed especially when in combination with the micro-vibration stabilizer system (MVSS). How significant is the Micro Vibration Stabilizer System? The Micro Vibration Stabilizer System is the single most significant and most efficient improvement made to the Oracle turntable since its creation 35 years ago! The MVSS system represents the final barrier to the elimination of the micro vibrations. This system will virtually eliminate the access of micro vibrations to the most critical part of the turntable, the sub-chassis, tonearm, phono cartridge and platter assembly. What is the purpose of the MVSS? The purpose of the MVSS is to capture and dissipate the micro vibrations that are present within the floating sub-chassis without short circuiting the efficiency of the Oracle suspension system. By eliminating the micro vibrations the stylus / platter interaction becomes more accurate, the stylus becomes more stable and better controlled. This increased stability allows the phono cartridge to retrieve more information from the record groove which translates into a more accurate signal reproduction which will not only impact the lower register but the whole spectrum. This global improvement will be very noticeable at all levels: improved musical accuracy, harmonic integrity, transient's sharpness, dynamic contrast, tonal balance, depth of image. The listener suddenly becomes more musically involved and this is a very unique experience! How does the MVSS system control work? Beside each suspension tower a small reservoir is secured to the acrylic base of the Delphi. They are filled with an extremely low viscosity silicone fluid. Again, near the suspension housings a threaded stem is mounted to the bottom section of the sub-chassis, those are lining up with the silicone reservoirs, a threaded lock nut and a tapered shape plunger will complete the mechanism. Once the tonearm and cartridge are precisely calibrated, the suspension system perfectly adjusted the turntable is ready to operate. The plungers on each sub-chassis leg are now lining up with the reservoirs mounted to the acrylic base. When in the fully up position the plungers do no come in contact with the silicone fluid in the reservoirs. It is then possible to play your Oracle without the MVSS in operation. Then experiment with the calibration of the plungers by turning them clockwise when viewing them from above the turntable as reference. Each full turn will generate a plunger displacement of 1,27mm (0,050”). The same calibration should be done for each plunger. Since we are dealing with micro vibrations it is extremely important to lock the plunger in position with the locking ring. Moving the plungers by one turn increments will reveal how they influence the performance. At the factory the best results were achieved between 1½ and 2 full rotations of the plungers. This represents a plunger penetration from 1.90mm à 2.54mm 2,80mm into the silicone fluid. We also believe that the ambient temperature has little influence on the depth calibration of the plungers. The type of support furniture or the nature of the flooring may require some fine tuning of the calibration. The MVSS calibration is done by listening to music so it is in fact a matter of finding the sweet spot where we get the best equilibrium. What about the new Delrin adjustable feet? In our quest to further increase the performance level of the new MkVI we did not hesitate to challenge each of the systems we had in place on the Oracle Delphi. Extensive testing and listening test convinced us that the use of Delrin was extremely beneficial to the performance of the turntable. We found the new MkVI Delrin adjustable feet to provide a better sonic balance with all the different equipment racks it has been tested. This new system further improves the natural tones of the instrument and voices. In fact, it is the whole musical spectrum that is gaining from this new system! Has the power supply been changed at all? The basic version of the Delphi MkVI comes with a simple and efficient power supply. The Turbo Power Supply MkII is optional but highly recommended as it brings a substantial improvement to the performance level of the Delphi. Its DC power cord is made out of highly performing monofilament thread. What contributes the most to the sonic improvement we get from using the new Turbo Power Supply MkII is the reduction of the parasitic noise (ripple) to less than one millivolt, down from 120 millivolt ripple in the signal of the previous Turbo Power Supply MkI version.
Shindo Labs Garrard 301 Player System
Garrard 301 Player System from Shindo Labs uses a damped integral mat. The Shindo platter is 20mm larger than the stock unit, and about 3lb heavier. The Shindo bearing is higher mass, has a larger diameter and is machined to much tighter tolerances than the stock unit. It also uses a special oil. The Shindo plinth system uses layers of laminated hardwood glued together and lacquered by 6th generation master carpenters. There are no voids left under the table and literally the plinth fits the Garrard like a glove. Not only beautiful to look at but offers the highest performance. A must for every Garrard 301. The Ortofon SPU is a classic design dating back to the mid 1950's, considered one of the finest cartridges in the world due to it's amazing musicality and direct sweet sound. Shindo takes the Ortofon SPU and does some proprietary modifications to the damper, coil, suspension and cantilever. This makes the classic SPU sound more refined, extended and resolute.
Spec GMP 8000 Turntable
This very simple structure turntable system would have one of the ideal figuration for getting high quality reproducing. Because that it’s component is only a few parts, a turntable, a motor and a string. They don’t need any other mechanical structure or parts. And so if we had done research on each component, we could manage to reach at certain quality level. I should agree that belt driven turntable system has same component like as string driven system except belt. Well, which would be desirable belt or string? It’s a hard question because that belt and also string have each advantage and disadvantage. A belt is made of some elastic material, such as grinded urethane rubber. And the tension by this elasticity, 5% to 10% added extension, can transfer the torque for turntable. So it is easy to install and use. On the contrary, string has some difficulties to manage. Speaking strictly, string has some elasticity like as belt, but if we adopt string for the system, we have to use very critical only a few % added extension for getting nonslip transmission between pulley and string. And so making a full use of string is quite difficult. But this string has tremendous virtue. The string could transmit the circumferential velocity of the motor pulley to the turntable velocity without any delay. Because that the string works as rigid material rather than elastic body. At the same time, the belt itself is elastic material and so the motor pulley and the turntable work with some springs and dampers because of this elastic body. And it inevitably causes some delay of the motor servo, when the load of turntable fluctuates. We could sum up, fundamentally the string driven turntable system can bring out outstanding high precision rotational accuracy according to constant-speed rotation of the motor, the most significant necessary requirement for turntable system. Built in manual adjustment mechanism for necessary string tension Again, string driven system might be hard to making full use of the potential but GMP-8000 has built in adjustment mechanism for the string tension and so once you succeed this alignment of GMP-8000, it will allow you rediscover new appeal of analog LP records as “the ultimate high-resolution sound” with the excellent drive system. Gigantic inertia moment, 40 cm/dia. gunmetal turntable We are living under the world of some physical laws and the law of inertia is the one of close to us in such laws. You can remind the law, a car can keep speed for some moments when you get of accelerator pedal. It could be applicable also to body of rotation and the mass of rotation is the inertia moment. And the momentum of constant-speed rotation is proportional for the amount of inertia moment. So GMP-8000’s exceptional gigantic inertia moment made from precious gunmetal with high-precision processed reaches to 3,260kg.cm2, can assure of outstanding smooth and precise rotation. And also luxuriously beautiful, well-sounding and heavy weight, up to 14kg gunmetal turntable would bring you some delights of possession. Fixed rotating axis bearing mechanism In a general way, turntable and rotating shaft are became unified. But this rotating system’s supporting point should be situated at the bottom end of the rotating shaft. And so the center of mass of the turntable is displaced from this supporting point that it leads to some grind motions. On the contrary, the bearing mechanism of GMP-8000 is consisted of fixed axis or shaft and outer rotating sliding bearing. About this mechanism, the point of thrust bearing and the center mass of gunmetal turntable is placed very close to each other. And it can bring out the outstanding stable rotation. Magnetic force aided to lighten thrust load bearing To lighten the thrust load, it is one of the very important factors for long term reliability of smooth rotation but also free from the mechanical noise and vibration of thrust block. And this mechanical noise finally degrades the sound reproduced. Then we included “Magnetic force aided structure” in the bearing of GMP-8000 and it can reduce more than 30 % of the weight of the turntable. Highest precision DC core-less motor system Precise rotating speed of the motor assures the constant rotation of turntable. We adopted highest precision DC core-less motor and the specialized custom servo system, made by maxon motor in Swiss. Thanks to the outstanding precision core-less structure of the motor with 9 slots, strong rare earth magnet and rare metal brush can bring out absolutely free from any minute torque ripple, the vibration itself and also fully required torque with high efficiency. And this motor generates 250 pulses for a single rotation and coupled with the latest software servo circuity, the gigantic gunmetal turntable of GMP-701 could be easily driven with precision speed by this motor system. Highly rigid chassis by laminated veneers of Finland birch The birch takes a long time to grow in the harsh cold environment of North European. Accordingly this wood has a fine grain and high density and so the laminated veneers have favorable planarity and rigidity. Of course, the material is also blessed with some of the internal loss of natural wood. And so the laminated wood could be some kind of ideal material for audio use, such as speaker boxes or this type of turntable chassis. The thickness of the custom laminated board is reached to 90mm and manufactured by high precision NC wood working machine in Shirakawa Co., Ltd, a famous furniture maker at Hida-Takayama city, beautiful historic town. You could find also woodworking is the Japanese traditional handicrafts. Robust and high precision tone-arm & motor base made from two kinds of metal We could offer you custom-made tone-arm base for fitting to your favorite 12 inches tone-arm. And this base is made from aluminum and machined to 12mm thickness with highly processing accuracy. Furthermore, this base can be fixed to the heavy under base of copper alloy ring geometry. Yes, this under base is tightly fastened on to the Finland birch laminated chassis. These combined material, robust and rigid but also has somewhat internal loss could bring out natural vibratory control around the parts of tone-arm mounting. And also the motor base structure is same as these tone-arm bases. As already stated, built in adjustment mechanism for the string tension is adapted to the aluminum motor base and the under base of copper base alloy ring. This structure provides for effective damping of the DC core-less motor’s minimal vibration. How to make full use of string driven turntable system “GMP-8000” You might regard GMP-8000 as a semi-finished product but also it has enormous amount of potential capacity for high quality reproducing as stated before. Because that you must make a choice the string. Well, there are a lot of types of string, such as cotton, silk, wool, nylon, polyester, and the rest. And furthermore even the polyester string has so many species to be found. If you have any strong interests for improving the sound, you should seek out best type of string for your hearing and needful reliability. But attached strings are two types, one is a nylon string and the other is polyester string, please try each of the string. And also try single turn, double turn or fourfold turn. When you come along the selection and how to use the string, you could reach to making full merits of GMP-8000.
Wax Engine Turntable
The CONSONANCE WAX Engine is a quite remarkable new turntable. There are more sensible design features that are beneficial to analogue playback in this turntable than those costing several times more. Main bearing & Spindle If you must have a bearing then it better be a good one. The Wax Engine features a stepped stainless steel spindle that encapsulates a ceramic ball at the business end. This rides on a teflon pad and with a few drops of oil provides a low friction surface. The spindle is housed in a brass housing. The spindle is relatively "short" which results in a platter with a low centre of gravity and as a result, rotation is notably free and stable. The DC motor is a high quality Mabuchi with a patented DC servo supply. The tonearm is a "unipivot" design which is not unique and although have known advantages also have well recognised problems. Rather than a "needle" point commonly used, Wax Engine features a proprietary low friction brass bearing in the horizontal mode and "pre loaded stainless" in the vertical. The arm tube is carbon fibre, terminated in a low mass headshell, antiskate is achieved by a rod and rider weight. A remarkable achievement in a tonearm at this price level. All mounted on an aluminium "T" section chassis with isolation feet. A serious attempt to give the recordings their best shot. Priced at $995.00 it may be the best value in turntables I have seen. Includes a aluminum 9 inch tonearm. Paired up with the new Well Tempered Labs TLC moving magnet cartridge you will have a system that plays like it is a $5000.00 system.
Well Tempered Lab DPS Power Supply
DPS Power Supply from Well Tempered Lab. The DPS (Dedicated Power Supply) for Well Tempered turntables features high quality components throughout to completely eradicate spurious noise for truly silent analog playback. Along with the dedicated output for Well Tempered turntables (Amadeus & Simplex variants) the DPS also features a pair of additional 12v outputs for running other audiophile components such as phono stages.
Well Tempered Lab DV-500 Turntable
DV-500 Turntable is a William Firebaugh (Well Tempered Lab) design which facilitates a high performance and stable platform for the Dynavector 507 Tonearm. It features dual layer acrylic / aluminium sandwich construction, servo controlled motor with anti vibration mounting, “zero tolerance” main bearing, 0.004 inches Polyester thread belt, and a predrilled tonearm mounting plate for DV 507 tonearm.
Well Tempered Labs Royale 400
Just arrived! The newest "brainchild" from Well Tempered Labs. Specifications: Multi-layer “baltic” plywood central layer. Switchable 33 to 45 RPMAnodized aluminium top and bottom layers. Proprietary rubber damping material between layers, motor and tonearm coupling. Isolation feet capable of supporting the heavy plinth. Electronic servo speed controlled motor. Refined platter assembly and zero clearance main bearing. The now purely mechanical LTD tonearm with 16” (400mm) arm tube. Symmetrex tone arm configuration with golf ball suspended in silicone fluid for optimum variable damping. “Zero Clearance” platter bearing0.004” polyester thread belt. Easy azimuth adjustment
Well Tempered Labs Versalex
Symmetrex tone arm configuration“Zero Clearance” platter bearingServo controlled motor with vibration controlled mounting0.004” polyester thread beltFully damped LTD tonearm featuring golf ball suspended in silicone fluid for optimum variable damping - Easy azimuth adjustmentFixed headshell with no fussy setupIsolation feet includedAcrylic platter“Baltic” Plywood plinth finished in real walnut.
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