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Three times TAS Turntable Of The Year plus 16 other industry awards...so far!

One of the Most Significant Turntables Of All Time TAS October 2011

"The very stuff dreams are made of!" Jonathan Valin, Executive Editor TAS

Introducing the Proscenium Black Diamond III Turntable

We had no intention of upgrading or changing the Proscenium Black Diamond II turntable. It is already considered one of the best in the world. We thought we had achieved the pinnacle of analog playback possibilities. We were wrong.

Over the years, we have continued to improve different aspects of the Proscenium turntable. One area of the turntable had remained essential unchanged was the turntable air suspension chambers – the chambers that support the weight of the turntable and isolate it from the equipment rack. We began to experiment with ways to use lower pressure in the turntable air suspension chambers as a way of extending the life of the air chamber pods. We didn’t expect the dramatic effect that a separate isolated air supply using lower pressures would have on the sound.

The result was amazing. We found the perfect pressure for isolation, rigidity and resonance control. We also discovered the ideal material to couple the air suspension pods to our Prologue Top Shelf. Just this change in itself was a major breakthrough. Together, the changes to the air pressure system and the new coupling material result in a musical presentation that is truly phenomenal.

I never believed recorded music could sound this real. In my opinion and the opinions of others who have heard the change, it is clearly a 30% to 50% improvement. The sound is so real that it will leave you in a trance. It is jaw-droppingly good. As one audiophile said, “this is a game-changer”. The results not only improve the sound, but the lower pressure will extend the life of the air chamber pods indefinitely.

If you are interested in playing LPs, I strongly recommend that you make an appointment to hear the new Proscenium Black Diamond III turntable.

If you already have a Proscenium Black Diamond turntable, contact us to find out how to upgrade your turntable to the Black Diamond III.

Features

New Isolated Air Supply for Undertable Chambers and Air Pods - with precision regulator, gauge and check valve and new air pod configuration and coupling discs to maximize isolation, rigidity and resonance control.

Air-bearing Platter - A huge 10 inches in diameter with 3 air jets, hand lapped.

Platter and Record Clamp - The platter is machined from the most resonance-free material known. It is machined slightly smaller in diameter than a LP so that the thicker outer lead-in grooves of the LP over hang and this allows the LP to lay flat. The label area is machined out wider and deeper than most platters.

The LP is held slightly above the platter at the spindle so when the record clamp is tightened, the record is forced flat to the platter. We have found this to sound far better than vacuum hold down. Vacuum pumps are noisy and they introduce this noise at the critical interface of the record and stylus. Plus any small vacuum leaks from the seals create a high frequency vibration that is detrimental to the music.

Black Diamond Air-bearing Arm and Spindle -

The arm is a true high-pressure (45 psi) low-flow captured linear tracking air bearing. The mono block is unique, containing eight fixed jets in a quad vent arrangement. This results in a friction-free, ultra-rigid arm bearing that is self-cleaning. The spindle and the arm are constructed of a proprietary material that is stiffer than carbon fiber. A simple adjustment sets the center of gravity correctly for any cartridge. The improvement in sound is amazing.

Fully adjustable for VTA, overhang, azimuth and damping. VTA adjustments do not affect the others. The VTA is not adjustable during play - that would compromise the sound. However, the VTA is easily adjustable. The damping is adjustable during play. Most cartridges require only a small amount of damping playing premium records; however, lesser recordings require more damping.

Arm Wiring - Sourced from a bio-medical laboratory. This is the same ultra-pure solid core silver wire with ultra pure clear .001 inch Teflon insulation that is used in medical research to connect the ear to the brain. Directionally wired and cryogenically treated for improved sound.

Remote Drive Motor - Enclosed in a matching cast crushed marble enclosure, the motor drive is mounted on Valid Points and sets on an adjustable motor base assembly so that belt tension can be easily adjusted. The drive pulley is straight cut so that any belt material up to 5/16 of an inch may be used. Two to four millimeter 100% silk belts are supplied and preferred.

The motor is wired with silver/Teflon solid core wire, with ultra premium foil, and solid capacitors by-passed with signature foil capacitors. The on/off switch is solid silver. The drive motor is an instrument grade ball bearing AC motor, and is fitted with an IEC connector so premium power cords may be used.

Reference Motor Controller - The motor controller comes with the

turntable and provides the motor with noise-free, accurate speed regardless of wall power changes. It is 17.5 x 8 x 4 inches and is mounted on a six-piece Valid Points resonance control kit. You receive an additional Valid Points disc to sit on top of the motor controller. It allows for separate fine adjustments for 33 1/3 and 45 RPM. A KAB strobe is provided for precise speed setting. Speed selection is by a switch. The unit is fitted with an IEC connector so the power cord of your choice may be used.

Air Supply System - It is very quiet and may be placed in a far corner of your room. However, we recommend it be placed in another room, if possible. Two 100 foot rolls of 1/4 OD clear flexible plastic tubing are included so the air supply can be placed anywhere up to 100 feet away. The air supply system is in a very attractive black oak veneer box that is 24 x 15.5 x 15.5 inches, weighing approximately 70 pounds, with two external 4.5 x 24 inch round damping chambers that can be placed behind or on top of supply box. The air is fully filtered, cooled and regulated in the system and the moisture is automatically collected in a holding container.

Easy Setup

The turntable requires a rigid, sturdy platform with a minimum area of 24 x 18 inches capable of supporting 245 pounds. The recommended width is 28 x 18 inches. Shipping weight of the system is approximately 390 pounds.

The Proscenium Black Diamond Turntable will come with an owner's manual that includes step-by-step directions for setting up your turntable and a very easy to use mirror protractor. The table is designed to be easy to set and play. Depending upon your location, set up service may be available.

Options and Complementary Products

Prologue Top Platform- Special non-resonance top platform in premium Jatoba (similar to Brazilian cherry) with a natural, hand-rubbed tung oil finish. 3 x 18 x 28 inches. Sits on top of your existing rack. 75 lbs.

Prologue Equipment Rack - Includes the Prologue Top Shelf.

In beautiful premium Jatoba. Mounted on four 2-inch Valid Points for leveling, with three shelves for components. Up to 42.5 inches tall; must know shelf height. 360 lbs.

Optional Direct Connection of Turntable and Phono Amp

Eliminates the need for an expensive set of interconnects and dramatically improves the sound. The phono amp is placed behind the turntable arm and the arm wires, fitted with custom silver RCAs, are plugged directly into the phono amp. Requires purchase of the Prologue Rack.

Walker Reference Phono Amp - Second Edition - Solid State. True dual Mono with remote power supply. No circuit boards in phono or power supply. Point-to-point all solid core silver wiring Teflon insulated. Blackgate capacitors in the power supply. Cartridge loading resistors and gain resistors are soldered in. Requirements must be specified with order. Phono Amp and remote power supply chassis are hand made of Jatoba and finished in hand-rubbed premium tung oil. Both are mounted on Valid Points Resonance Control points and discs. Power cords not included.