TDK MA-R (1979-1981 US) Cassette Tape

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1. 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.

2. 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

3. User Reviews:

The TDK MA-R cassette tape has received positive reviews for its exceptional sound quality and stability. Users praise its ability to produce vibrant recordings with a wider dynamic range, thanks to the use of Finavix metal particles and a polymer coating that seals each particle permanently.

4. 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.

5. 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.