Turntable Details
Drive
Belt
Motor
Wow & Flutter %
Rumble [dB]
Speed
Dimensions [mm]
Platter Material
Platter Diameter [mm]
Total Weight [kg]
Tonearm
Year Built
60.00
Platter Weight [kg]
20.00
Plinth Material
Price
Additional information
The Audiomeca Pierre Lurne J4 is a high-end turntable designed by Pierre Lurne, a notable figure in the audio engineering field. This turntable exemplifies advanced design principles, particularly emphasizing the control of vibrations and the importance of mass in audio playback.
Design and Construction
Platter: The J4 features an 8 kg platter constructed from three layers: a combination of metacrylate and lead, with the lead layer providing significant inertia (approximately 1.5 tons). This design enhances stability and reduces unwanted vibrations during playback. The platter has a concave top shape with a 30-degree angle, complemented by a metacrylate mat interface for optimal record contact.
Bearing System: The turntable employs an inverted bearing system, which allows for rotation at the platter's center of gravity. This design minimizes friction and enhances rotational stability. The bearing consists of a single Delrin sleeve paired with a tungsten carbide ball, ensuring durability and smooth operation.
Chassis: The chassis is designed to mitigate external vibrations while maintaining structural integrity. It is engineered to provide a stable platform for the platter and tonearm assembly, crucial for high-fidelity sound reproduction.
Tonearm Compatibility
The J4 is compatible with various tonearms, including linear tracking options. Pierre Lurne has emphasized that up to 90% of a turntable's sound quality can be attributed to the tonearm and cartridge combination. This insight guides the design philosophy behind the J4, allowing users to customize their setup based on personal preferences and listening requirements.
Performance Characteristics
Vibration Control: The J4's construction principles are grounded in physics, focusing on managing energy transfer within the system. By utilizing pure mass concepts, the turntable effectively reduces motor noise and bearing noise, enhancing overall sound clarity.
Sound Quality: Users have reported that the Audiomeca J4 delivers an exceptional listening experience characterized by clarity and detail across various musical genres. The careful engineering of its components contributes to its reputation as a highly regarded turntable among audiophiles