Ampex Professional 671 (1979 US)

Cassette Description

The Ampex Professional 671 is a high-quality, non-backcoated extended-length cassette tape designed for professional and home use. Introduced in 1979, this tape grade is known for its reliable performance and durability. The 0.75 mil LNER (Low Noise Extended Range) formulation ensures minimal noise and high signal-to-noise ratio, making it suitable for a variety of audio applications.

Cassette Technical Specifications

• Thickness: 0.75 mil
• Material: LNER non-backcoated
• Length: Extended-length
• Speed: Compatible with standard cassette tape speeds
• Noise Level: Low noise formulation

Cassette Key Features

1. Low Noise Formulation: The 0.75 mil LNER formulation reduces noise levels, ensuring clear and crisp audio.
2. Extended Length: Designed for longer recording sessions, making it ideal for professional applications.
3. Non-Backcoated: The non-backcoated design allows for better signal transfer and reduced distortion.

Improvements over Previous Generation

The Ampex Professional 671 represents an improvement over earlier cassette tapes by offering a more advanced low noise formulation. This enhancement provides better audio quality and reliability, making it a preferred choice for professional audio applications in the late 1970s and early 1980s .