4-arm turntable, airbearing design
Galder is Bergmann`s answer to the most universal turntable design. Galder accept up to 4 tonearms. Radial- and linear tracking arms. Output for an air bearing tonearm. Motor base separated from the plinth. Vacuum hold down, or clamp.
Galder. In the Nordic Mythology, Galder means to enchant. A craft consisting of magic songs and spells.
A master of practice Galder craft, was said to be able to raise storms, make distant ships sink, make swords blunt, make armour decide victory or defeat in battles. Odin, a master of magic, was a God with great abilities to “Galder”.
Advantage of using air bearings
The platter is centered by a steel spindle, running in a very frictionless, low noise and hard wearing polymeric bearing material, and floats on a thin air cushion, which lower the mechanical bearing noise to an absolute minimum- if any. (A traditional bearing solution, which keep the platter centered AND support the platter weight, makes a higher level of mechanical bearing noise, as the contact point between spindle top and platter, generates a very high pressure – and hereby noise.) By floating on an air cushion, the platter also gains the advantage of a very good isolation from the surroundings, same way as the known -and very expensive- air supported shelfs, used in many highend audio systems.
Also the speed stability benefit from the air supported platter. The musical flow is really extraordinary – not necessarily measurable but audiable.
The plinth is made of one solid piece of cnc-machined die cast aluminium, as wel as the motorbase. Both parts with powder coated finish. The plinth is securely tightened to a 10mm aluminium bottom plate, which is standing on 3 adjustable feet. The feet is an aluminium and ceramic ball construction. 3 upper and smaller ceramic balls configured in a triangle, is standing on top of one bigger lower ceramic ball. No matter the feet position, the 3 upper ceramic balls will always have a perfect contact to the lower ceramic ball. The motor base is standing on the aluminium bottom plate –but decoupled – and will always be aligned with the plinth, no matter the feet position. On the back side of the plinth, the back panel is mounted. It consist of: Grounding, Air input, Vacuum input, output for an air bearing tonearm, and air adjustment valves for platter and tonearm.
Vacuum hold down, or clamp.
Accapt up to 4 tonearms. All tonearm designs, radil – and linear tracking.
Output for an airbearing tonearm.
Black anodized die cast aluminium.
Aluminium platter floats on air. 3mm acrillic mat.
Centred by steel spindel/hardweared low friction polymer bearing.
Adjustable feet. Aluminium/ceraball construction.
365 x 480 x 190mm (D x W x H)
Tacho motor with high precision feedback control system.
33 & 45
Silent, clean, dry and smooth airflow. Replaceable filter.
Easy accessible dust filter, for easy cleaning and replacement.
465 x 225 x 235mm. (D x W x H)