Sindre Airbearing Turntable & Tonearm

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Plinth

Sindre is built around a 88 mm massive block, in a 3 layer fiber board. The plinth is hung up stiffly to secure an optimal stability for the linear tracking airbearing tonearm. The plinth is placed on 3 adjustable spikes to obtain a simple adjusting of level. Spikes are chosen, rather than other solutions, because of the stability. Spikes are made of a stiff material and secure the turntable's horizontal adjustment. This forms a glaring contrast to soft feet which, in time, will collapse. At the same time, the spikes provide the smallest contact surface possible to avoid vibrations from the substructure being transmitted to the turntable.

The back panel of the plinth contains:

1. WBT plugs which provides the user with the possibility of using his or her preferred interconnect.

2. Air flow adjustment for the tonearm and the platter. Easy accessible and user friendly.

3. Air supply entrance and motor control connection.

Airbearing

Sindre's bearing is the closest you will get to Sleipners ultimate bearing solution. The airbearing consist of two aluminum discs between which the air supply creates a thin frictionless air film. The spindle is centered in a bearing housing made of a very hardwearing and extremely frictionless technical polymeric. The material, which is vibration muffling in itself, has a five times longer life than e.g. bronze bearings.

Platter and the clamp  

The 3.2 kg subplatter, which is made in solid aluminum, provides, in combination with the 4 kg acrylic platter, a well-balanced, vivid and dynamic reproduction of the music. When the clamp is screwed on the taps thread, the subplatter, platter and record gets tightened into one heavy and very stable rotating unit. An O-ring in the bottom of the clamp prevents the record from slipping on the platter. In this way you prevent the record in causing small, fast decelerations.

Tonearm 

The tonearm is a linear tracking airbearing tonearm. It tracks the record as it is pressed. A linear tracking airbearing tonearm can be produced in several ways. We have chosen the following construction: A long fixed air pipe with small vents creates a frictionless air film on which a sliding pipe gently floats. The arm tube is mounted on this sliding pipe. In this construction you avoid an air tube which inevitably interferes with the arm's freedom of movement. This type of arm is simple to adjust perfectly. The tonearm is made in a very hard aluminum alloy to secure the best stability as possible. The arm tube is made of carbon fiber - again to secure the best stability as possible. The head shell, made in the same hard aluminum alloy as the rest of the tonearm, is completely parallel with the sliding pipe, which results in a perfect azimuth. The internal wire is twisted in one piece from clips to plugs to avoid too many solderings in the extremely sensitive signal path. The tonearm has VTA adjustment and a possibility for perfect horizontal adjustment of the air pipe, independent of the plinth. The tonearm can be moved forward and backward on the plinth. Adjustment tools are enclosed.

Air supply

The air supply has been the object to one of our greatest attentions. The air must be even, clean and dry. Impulses from the pump are absorbed in an encapsulated reservoir. This results in an even air flow to the air bearings. The air supply is mounted with a filter, which prevents small dust particles from entering the system. This filter is exchangeable , if necessary. Furthermore, there is a container for the accumulation of condense. This condense container is placed on the back of the air supply and is easy to empty for condense water. The chosen pump is very reliable, and the total solution has a noise level so low that it can be placed in the listening room.

Sindre accessory kit

Turntable:
Air supported platter, centered by a steel spindle/hardwearing low friction polymer bearing, DC motor, Belt driven

 

Solid fiber board

 

Platter:
Acrylic, 8.8 lbs

 

Aluminum, 7 lbs.

 

50.1 lbs.

 

19.7 x 18.7 x 8.3 (W x D x H)

 

Linear tracking airbearing tonearm. Hard aluminum alloy/carbon

 

10 gr.

 

Separate, 33 & 45 rpm

 

Silent, clean, dry and smooth airflow

 

18.5 lbs.