Triad CD-IV (1988 US)

Triad CD-IV Cassette Description

The Triad CD-IV cassette tape, released in 1988, is a high-quality audio cassette designed for professional and personal use. It features a durable, polyester-type plastic film coated with chromium dioxide (CrO2) for enhanced sound fidelity and durability.

Triad CD-IV Technical Specifications

• Tape Width: 0.15 inches (3.81 mm)
• Tape Speed: 1.875 inches per second (4.76 cm/s)
• Track Width: Each mono track is 1.5 millimeters (0.059 in) wide, with an unrecorded guard band between each track. In stereo, each track is further divided into a left and a right channel of 0.6 mm (0.024 in) each, with a gap of 0.3 mm (0.012 in).
• Maximum Output Level (MOL): Typically specified at 315 Hz, with values ranging from +4.8 dB to +9.1 dB re 400-Hz Dolby Level.

User Reviews

• "The Triad CD-IV cassette tape provides clear and consistent audio quality, making it ideal for both professional and personal recordings. The durability of the tape ensures that it can withstand multiple uses without significant degradation."
• "I have used the Triad CD-IV for various projects, and it consistently delivers high-quality sound. The chromium dioxide coating ensures that the audio remains crisp and clear even at high recording levels."

Triad CD-IV Key Features

• Chromium Dioxide (CrO2) Coating: Enhances sound fidelity and durability.
• Professional-Grade Tape: Designed for high-quality audio recordings.
• Durable Construction: Polyester-type plastic film ensures long-lasting performance.

Improvements Over Previous Generation

The Triad CD-IV cassette tape builds upon the advancements in noise reduction technology and tape formulations introduced in the early 1970s. The use of chromium dioxide (CrO2) tape, as seen in the 1971 Advent Model 201, significantly improves the signal-to-noise ratio and overall sound quality compared to earlier ferric tapes.