Turntable Details
Drive
Belt
Motor
AC
Wow & Flutter %
Rumble [dB]
Speed
33, 45
Dimensions [mm]
Platter Material
Platter Diameter [mm]
Total Weight [kg]
Tonearm
Year Built
37.00
Platter Weight [kg]
Plinth Material
Price
$15900 (2011)
Additional information
The Basis Audio Debut Signature Turntable is a high-performance analog playback system designed for discerning audiophiles. It combines advanced engineering with innovative design features to deliver exceptional sound quality and precision.
Design and Construction
Platter and Bearing: The Debut Signature features a 2-inch thick composite platter, which is precision-machined from acrylic for optimal performance. This platter is mounted on an advanced oil-well bearing system, recognized for its smoothness and quiet operation. The bearing employs a multi-component, two-tiered structure that positions the center of gravity of the platter between the top and bottom bushings, significantly reducing lateral forces. This design results in lower friction and noise, contributing to the turntable's ability to produce silent backgrounds and transparent sound reproduction.
Plinth: The turntable is built on a massive 1-inch thick stress-relieved acrylic plinth. This construction provides excellent stability and isolation from external vibrations, ensuring accurate sound reproduction without interference from environmental factors.
Suspension System
The Debut Signature utilizes a sophisticated fluid-damped suspension system, which includes Resonance Annihilators. This system effectively isolates the turntable from external vibrations and converts vibrational energy into heat, thereby improving clarity and detail in audio playback. The suspension operates at low frequencies (around 3–4 Hz), allowing for true low-frequency isolation.
Motor and Drive System
Motor: The turntable employs an AC synchronous motor, modified with a custom magnetic assembly to enhance power delivery and reduce noise. The motor is isolated from the chassis using elastomer isolators, further minimizing vibration transfer.
Drive Mechanism: A high-quality belt drive system ensures exceptional speed stability with minimal cogging effects. This results in consistent musical notes and coherent sound reproduction across various frequencies.
Performance Features
Vacuum Record Hold-Down System: An optional vacuum hold-down feature can be integrated into the Debut Signature, applying controlled negative pressure to keep records flat against the platter. This enhancement eliminates resonance and improves sound fidelity, particularly for warped records.
Tonearm Compatibility: The turntable can be paired with various high-quality tonearms, including options like the Vector 4 Tonearm, known for its precision tracking capabilities.
Technical Specifications
Overall Dimensions: Approximately 16.7 inches wide x 15 inches deep x 5.5 inches tall
Weight: Around 35 pounds (shipping weight approximately 42 pounds)
Speed Options: Capable of playing at both 33.3 RPM and 45 RPM with adjustable belt positions on the drive pulley