Description
Super Groove Precision Tonearm HB
Benefitting enormously from the work done in developing the Reference Tonearm, the Vertere Acoustics Super Groove PTA HB offers incomparable performance in almost any class.
The Vertere Reference Tonearm was a milestone in vinyl replay. Its design, build quality and attention to detail have provided performance that is second to none. Of course such quality comes at a price.
It was only natural to ask if by a parallel, albeit different, approach to design could we develop a much more affordable tonearm that was similarly capable of breath-taking performance? This was the beginning of the journey that led Vertere to the introduction of the latest Super Groove Precision Tonearm HB.
At first sight the SG PTA Tonearm may come across as a uni-pivot, it is in fact anything but a uni-pivot. A uni-pivot will skate about on its bearing point of contact while the tonearm moves side-to-side and up-and-down. This is because there is no such thing as a point; there is in fact one surface supported by another and sliding relative to each other.
And because of this, there is always some skating of the contact point on the support bearing surface. Although the skating or chatter may be in fractions of microns but so is the magnitude of some of the information stored in the vinyl groove.
SG-TPA HB Tri-Point Bearing
The new Tri-Pivot Articulated (TPA) bearing is comprised of three precision silicon nitride balls captive in a precision machined Acetal ball retaining ring supporting the super precision machined stainless pivot. The pivot point centred between the silicon nitride balls provides flawless support and articulation.
TPA eliminates bearing point ‘skating’ and allows the stylus to track the most delicate pieces of information that are typically lost with uni-pivot designs. This ensures accurate play back due to the strict adherence of the stylus to the record groove.
SG-PTA HB Tube / Head-Shell
Roll-wrapped carbon fibre is used in the construction of the arm tube. This provides higher strength and more homogenous fibre structure than a Pultruded or moulded equivalent.
The Super Groove Precision Tonearm HB head-shell is made from Titanium and connected to the arm tube via structurally bonded alloy end insert. Naturally non-resonant and optimum rigidity of this configuration provides the most stable platform for the cartridge.
Yoke / Pillar
The bearing pivot is structurally bonded to the precision machined aluminium alloy yoke. The assembly provides the support required for the arm tube, the main counterweight and the anti-skate mechanism.
The pivot point and the counterweight centre of gravity are vertically positioned to be as low as possible. This in turn retains the tonearm in its most stable position by the chrome plated brass main tonearm pillar.
Transit Screw / Counterweight
SG PTA HB tonearm transit screw will prevent any accidental damage to the precision Tri-pivot bearing during shipping. And the counterweight locator will ensure accurate repositioning of the counterweight and eliminate the need to setup the Tracking Weight & Azimuth again.
Adjustment
An adjustable and de-coupled stainless ring allowed to move along the arm tube provides fine tracking weight adjustment.
The relative position of this ring and of the main counterweight can also be used to alter the arm/cartridge resonance frequency and optimise play back performance of the cartridge.
Counterweight
Attention to detail is clearly seen in the mirror chrome plated brass counterweight and polished stainless steel peg.
Two pairs of silicone de-coupling rings are utilised to provide the necessary grip for location and the required isolation of the counterweight. Side-to-side moving and lockable Fine Adjustment Azimuth Screw offers easy and accurate setting of the cartridge azimuth to ensure optimum musical performance.
Features
- Unique precision Tri-Pivot Articulated, ultra-low stiction bearing.
- Titanium head-shell.
- Heavier decoupled main counterweight with fine azimuth adjustment screw.
- Fine-tuning of tracking weight and arm / cartridge resonance control adjustment weight ring.
- Connections all custom manufactured and triple gold-plated.
- Non-resonant, high-rigidity roll-wrapped carbon fibre arm tube.
- Bias-curve adjustable anti-skate mechanism.
- Custom Pulse HB internal wiring.
Specifications
- Type: Tri-Point Articulated
- Effective Length: 240 mm
- Overhang: 17.5 mm
- Offset Angle: 22.9 degrees
- Head-Shell: Titanium
- Arm Tube: Wrapped Carbon Fibre
- Bearing Yoke Structure: Aluminium Body
- Bearing Type: Captive silicon Nitride Ball (x3) Precision
- Counter Weight: Mirror Chromed Brass, Stainless Steel T/W Adj. Sleeve
- Internal Wiring: Vertere Pulse HB Hand-built
- Connector: Proprietary Cartridge Tags & 5-Pin, x3 Thickness Gold Plated Contacts
- Tonearm Cable (Optional): PULSE HB, veRum or Redline
- Weight: 428 g
Full Vertere Acousics Range Available
Unilet Sound & Vision are official retail partners for Vertere Acoustics, providing sales, advice and assistance on their entire range of high-quality products. Please do get in touch if you would like a demonstration or wish to purchase.
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