Introducing DG-1 Dynamic Groove

13.05.2019..

Press release | Touraj Moghaddam founder and CEO of Vertere Acoustics today proudly presented his new design: The Dynamic Groove Record Player.

Vertere Acoustics is best known for its extreme high-end designs loved by audiophiles worldwide. The Reference RG-1 Turntable and the Reference Tonearm compete on equal terms with the world’s best.

The new DG-1 Dynamic Groove Record Player is designed for a less extreme customer: one who is driven by performance but needs almost Plug and Play setup. This customer – from Vertere’s research – wants ease of setup and use but not at the expense of future upgradeability.
To design a record player that will sell for £2850 / €3350 including cartridge when the brand’s existing designs can sell for £200k requires a back to fundamentals approach. Taking his existing ideas and reducing material quality and slackening tolerances would not be the Touraj way.
Back to fundamentals involved examining every element of the design, rethinking the way turntables work, and removing every superfluous element that got in the way of the ultimate aim: getting the listener, as close as possible to their music.

From the plinth to the arm and its bearings, everything has been redesigned and re-engineered, developing some of the basic principles of a record-playing system while completely rethinking others.
The result is an elegant turntable that looks like no other, but draws on the engineering of the reference models to deliver outstanding performance and ease of operation at a newly affordable price.
“The job of a record player is very simple, and very linear” says Touraj Moghaddam “the most accurate measurement of something going past the stylus and throwing it from side to side over 1000 times every centimetre.”

The DG-1 Design

  • Advanced microprocessor generated electronic motor drive for best possible drive
  • Fully programmable and copper/stainless steel shielded motor drive PCB – allowing for future upgrades.
  • Low voltage 24 pole precision synchronous motor, with its dedicated power supply precisely adjusted for lowest motor noise and vibration
  • High-accuracy polished stainless steel, high aspect ratio, main bearing spindle and main bearing housing with tungsten carbide super-precision ball
  • High precision CNC machined aluminium alloy drive pulley
  • High precision machined aluminium alloy platter with bonded PETG record interface mat and cork/neoprene/nitrile bonded underside resonance control disk
  • Noiseless and stiction eliminating nylon thread tonearm bearings each made up of hundreds of 3 microns thick twined Nylon 6.6/6 strands
  • Two layer aluminium alloy / polymer sandwich non resonant tonearm beam
  • One piece, gold plated flexible PCB tonearm internal wiring
  • Stainless steel main balancing counterweight and tracking adjustment weight
  • Nonresonant, triple sandwich cast acrylic main and sub plinth structure with steel main chassis for rigidity and structural support on three adjustable feet
  • Low frequency compliant, yuned silicone rubber integrated isolation system
  • Bespoke clear precision moulded silicone rubber round ‘belt’ – stable with temperature and humidity
  • Programmable standby light
  • 33/45 touch button speed selector
  • Non-resonant clear acrylic dust cover with elegant Integrated hinges
  • Multi-voltage, multi-plug mains power adaptor – suitable for almost any region


The core elements in more detail

 

The Motor - The motor is arguably the most important part of any turntable: it's the only source of energy for the signal generated by the cartridge and fed out to the amplifier, so quality and accuracy is vital. The DG-1 motor system is derived from that developed for the flagship
RG-1 Reference Motor Drive: it uses the most advanced motor drive, delivering the best possible performance. The motor itself is a low voltage 24-pole precision synchronous design, individually tuned for the lowest noise and with an offboard power supply. It’s controlled by a microprocessor PCB, addressable during manufacture to ensure accuracy and programmable for future upgrades. A copper and stainless steel cover provides shielding from both inward and outward interference.

The Platter assembly - Drive to the platter is via a precision machined aluminium alloy pulley on the motor and a bespoke silicone rubber drive belt, with electronic speed change for ease of use. The platter itself is also precision machined alloy, to which is bonded a PETG record interface mat and, on the underside, a cork/neoprene/nitrile disk bonded to control platter resonance.

The Bearing - The platter fits onto a highly polished stainless steel spindle, that rides in a main bearing housing on a super precision tungsten carbide ball. The complete main bearing assembly is longterm lubricated for longevity and ease of use. This avoids normal repeated recharging of the bearing lubricant that is essential to avoid premature wear and damage. Another example of the simplification of this turntable to optimise performance.

The Arm - The DG-1 arm is uniquely Vertere, and differs from established thinking in its use of a flat profile in place of the usual tube. Conventional arms use tubes for stiffness, but these can bring all kinds of problems with high Q resonances, and thus the need for critical damping – costly and complicated. The DG-1’s three-layer, non-resonant tonearm beam avoids these problems. In place of conventional tonearm cabling, a flexible PCB is sandwiched into the arm itself to carry signal from the cartridge to the output terminals. Completing the arm are a stainless steel counterweight and a tracking adjustment weight, giving a total solution that’s as simple and elegant as it is innovative.

Thread bearings - Many solutions have been sought over the years for precise bearings, but for the DG-1 Vertere has developed a very simple solution: twisted nylon threads (hundreds of 3 microns thick twined Nylon 6.6/6 strands) – one for movement in the horizontal plane, and two for the vertical axis. These threads have many advantages, not the least of which is simplicity: they exhibit none of the stiction – or initial resistance to movement – of conventional bearings, are super-light and noiseless, and the twist of the thread controls and damps the movement of the arm.

The Plinth - Like the tonearm, the DG-1 plinth is a sandwich construction, using non-resonant cast acrylic to form the main plinth and the sub-plinth for a clean and sophisticated look. This three-layer design incorporates the control button, the speed indicator and the user-selectable standby mood-lighting, as well as the silicon rubber isolation between the plinth and the platter assembly. The whole assembly sits on a steel chassis, chosen for optimal stability, housing the motor drive circuit and the motor all supported by three adjustable feet. The DG-1 comes complete with a non-resonant acrylic dust-cover, where its hinges are integrated into the plinth for a sleek and modern profile.


Touraj explains the source of some of his background knowledge: “Our collaboration with music industry engineers has given us invaluable insights into the art of cutting. This has enabled us to advance our record player design in many ways to extract the maximum from vinyl records.
For example, with his recent remixes of the Beatles albums, Giles Martin – son of the late Sir George – used a Vertere MG-1 record player including SG-1 tonearm and PHONO-1 preamplifier throughout to check and approve the acetates and the test pressings.
And we’ve worked closely with the multi-award-winning mastering engineer Miles Showell: since February 2017. Miles has been using his own extensively customised Neumann VMS 80 lathe, incorporating Vertere cables, to cut normal and half-speed masters for the likes of ABBA, Cream, The Police and The Rolling Stones, and also the 50th anniversary release of The Beatles’ Sgt Pepper's Lonely Hearts Club Band and The Beatles, otherwise known as The White Album.
Working closely with Miles has led to the first releases on our own record label Vertere Records. Release: a three-track EP and first album by Scottish band Caezar, and the first album by Dutch singer/songwriter Elles Springs, which was specially tape-transferred and then half speed mastered and cut by Miles for our label.
It’s only by involving ourselves at every stage of the record-making process that we can ensure our players bring you as close as possible to what the artists and engineers wanted you to hear.”

 

 

For further info:

to Vertere Acoustics website

download here the Vertere DG-1 Dynamic Groove Brochure

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