DG-1

Dynamic Groove

$4,099.00USD – $5,999.00USD
The Vertere DG-1 Dynamic Groove Record Player is our most affordable design; the easiest to set up and use, and also contains some of our most innovative thinking.
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features

the motor

In case you thought the motor’s only job was to make sure the record rotates at the right speed, think again: as the only source of energy for the signal generated by the cartridge and fed out to the amplifier, it’s arguably the most important part of any record player. The DG-1’s 24-pole Precision Synchronous motor is individually tuned to minimise noise, uses an offboard power supply, and is controlled by circuitry derived from that developed for the flagship RG-1 Reference Motor Drive. For the DG-1, the advanced electrics have been designed down to a single microprocessor PCB, which is both addressable for precision setting during manufacture and programmable for future upgrades. Copper/stainless steel shielding protects it from unwanted interference.

the platter

Drive to the platter is via a precision machined aluminium alloy pulley on the motor and a bespoke silicon rubber drive belt for smoothness and durability, while electronic speed change, via a switch to the rear of the plinth top-plate, adds to the ease of use and removes any need for belt-handling. Like the pulley, the platter itself is also precision-machined alloy, to the top of which is bonded a PETG record interface mat. On the underside a cork/Neoprene/nitrile bonded disc controls platter resonance.

The bearing

The platter rotates on a highly polished stainless steel spindle, which rides in a main bearing housing using a super precision tungsten carbide ball, avoiding the need for complex regimes of lubrication, while still retaining the smoothness of rotation essential for the accurate playback of records. That’s another example of the many ways in which the elements of this record player have been simplified to optimise performance.

The tonearm

The DG-1 tonearm is uniquely Vertere, and differs from established thinking in its use of a flat profile – one of the most striking visual elements of the whole record player – in place of the usual tube. Conventional arms use tubes for stiffness, but these bring all kinds of problems with resonances, and thus need damping if they’re not to ‘ring’, and pass those distortions back to the cartridge. The DG-1’s three-layer, non-resonant tonearm beam avoids these problems and, in place of conventional tonearm cabling, uses a flexible PCB sandwiched into the arm itself to carry signal from the cartridge to the output terminals. It’s a one-piece design, running continuously from the cartridge connections all the way to the output to the amplifier.

The thread bearings

The bearings allowing the arm its horizontal and vertical movement are also innovative: there aren’t any – well, not in the conventional sense! Many solutions have been sought in the past for these precise bearings, which need to be small, precise and as near-silent as possible, but for the DG-1 we have developed a very simple solution: twisted nylon threads – one for movement in the horizontal plane, and two for the vertical axis. These threads are simple, exhibiting none of the stiction – or initial resistance to movement – of conventional bearings, as well as being super-light and noiseless. They’re also self-damping, with just the twist of the thread controlling their movement.

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 thecontrol 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.

technical specifications

DG-1 Record Player

Type
Belt drive
Motor
24 Pole Synchronous
Acetal Spindle Thrust Bearing
Motor Mount
Axially De-coupled
Pulley
Super Precision Aluminium Alloy
Drive Belt
Bespoke Silicone Rubber
Platter DG-1
Precision Machined Aluminium Alloy
PETG Bonded Record Interface Mat
Underside Bonde Resonance Control Disc
Bearing Spindle DG-1
Stainless Steel
Super Precision Machined and Polished
Roundness / Concentricity
< 5 Microns
Bearing Housing
Brass
Super Precision Machined
Bore Tolerance < 5 Microns
Super Precision Tungsten Carbide Ball
Plinth Structure
3 Layer Acrylic
Top and Sub-Plinth, Internally Illuminated
Isolation System
4 Point, Bespoke Silicone Rubber
Support Structure
Steel Chassis
Three Adjustable Feet
Motor Drive
Advanced Microprocessor Controlled
Fully Programmable and Motor Noise Reduction
Speeds
33.3 and 45 rpm (+/- 0.2%)
Electronically Selectable
Dust Cover
Non-resonant Acrylic
Dimensions (W x D x H)
469 x 384 x 130mm (including dust cover)
Power Supply
Wall Adaptor Type
UK, US, EU and AUS Exchangeable Plugs
100 – 240 Vac with 1.5m Cord
Weights
8kg

DG-1 Manual

DG-1 ‘Groove Runner’ Tonearm

Type
Fixed Axis Bearing
Effective Length 240mm
Overhang 17.5mm
Offset Angle 22.9°
Tonearm Beam
Aluminium/Polymer Sandwich
Bearing Structure
Twisted Nylon 6.6/6 Thread
Counterweight
Stainless Steel
With Adjustable Tracking
Weight Block
Internal Wiring
Gold Plated Flexible PCB
With Gold Plated Cartridge Tags
One Piece From Cartridge
To Output
RCA Sockets
Weight
280g

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support

contact info

  • 14 Inverness Drive East, Unit G-108 Englewood CO 80112
  • 1.888.279.6765
  • info@vertere.audio

about vertere acoustics

Vertere Acoustic is a prestigious British high-end audio manufacturer, led by visionary founder and CEO Touraj Moghaddam, renowned for his co-founding of Roksan. Based at 5 Oliver Business Park Oliver Road London NW10 7JB, Vertere Acoustic is dedicated to crafting exceptional audio products with a commitment to uncompromising quality and innovation. Proudly distributed in North America by Rutherford Audio Inc.

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