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TDK MA-R Cassette Description:
The TDK MA-R cassette tape, produced from 1979 to 1981 in the US, is a premium audio cassette designed to deliver high-fidelity sound. It features a heavy and stable metal shell construction, which significantly reduces vibrations and ensures accurate left-to-right channel orientation and true parallel running of the A and B sides.
TDK MA-R Technical Specifications:
Magnetic Particle: Finavix
Coercivity: 1130 Oe
Remanence: 3300 Gauss
Squareness Ratio: 0.85
Operating Bias: +0.5dB
MOL 315Hz: +6.0dB
MOL 10kHz: +0.5dB
Sensitivity at 315Hz: +1.2dB
Sensitivity at 3.15kHz: +1.8dB
Sensitivity at 10kHz: +2.5dB
Sensitivity at 16kHz: +3.0dB
Bias Noise: -58.0dB
TDK MA-R Key Features:
Heavy Metal Shell: Reduces vibrations for accurate sound reproduction.
Finavix Metal Particles: Ensures long-term stability and high sound quality.
Polymer Coating: Permanently seals each metal particle for consistent performance.
Improvements over Previous Generation:
The TDK MA-R cassette tape represents an improvement over previous generations by incorporating a three-layer construction with a die-cast zinc core machined to micron tolerances, which enhances total stability and accurate channel orientation. This unique construction allows the cassette to take full advantage of the qualities of metal tape, producing high-fidelity sound.
