Linn Sondek Serial Number Age5/7/2021
The Sondek LP12 has a floating sub-chassis to completely isolate the playback surfaces from vibration and extraneous noise.Here is a description of the upgrades and a potted history of its development.
We also provide a list of the best upgrades to do and the order in which it makes the most sense to do them. The LP12 has evolved since its introduction, but its basic suspended sub-chassis design has remained. At its launch the design was similar to the Ariston RD11 and the Thorens TD150, both in turn based on the Acoustic Research XA turntable that was launched in 1961. Linn presented an important challenge to that by claiming that the source (i.e. ![]() Customers have often asked us to clarify what these upgrades are and which of the makes the biggest difference to the performance. Here is a brief history of the upgrades and modifications, the most critical being those in bold. Sub-chassis strengthened by addition of strap, spot welded in place. Motor control circuit changed from terminal strip to small PCB. Mains switch changed from two buttons to single with mains neon. The idea was to make the metal stop plate more rigid and to reduce resonance 23,000. This offered a significant improvement in performance and pitch stability. Again this strengthened and reduced resonance in the sub-chassis. Amongst other features, it bears a plaque etched with the signature of Linns founder Ivor Tiefenbrun. It builds on the Cirkus upgrade (now fitted as standard to new LP12s) but is not included as standard in regular production LP12s. Linn claims that the Keel is an application of its close-tolerance aluminium machining, first seen in the ingot casing of the Sondek CD12 CD player. This turntable also featured the Radikal Power supply and the Urika phono stage mounted inside the turntable. Linn Sondek Age Serial Number OnThe serial number on the back will tell you when the turntable was manufactured but wont give you any indication of what has been fitted to the turntable in terms of upgrades since it was purchased. Knowing this is vital in terms of the value of the turntable and what you might have to spend to upgrade it. If you are in any doubt youll need a LINN retailer to do this. What I mean is that the actual turntable has greater importance than the tone-arm and the cartridge. A cheaper motor unit with a higher end tone-arm and cartridge will always sound inferior to a better motor unit with a more basic tone-arm and cartridge. There are many reasons for this but the most important is pitch accuracy and isolation from vibration and feedback.
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