The Denon DL-300 is a lightweight moving coil (MC) cartridge from the 1980s featuring an amorphous boron cantilever and a wide frequency response (20Hz–75kHz). It is known for its high-performance tracking and precise sound reproduction, often paired with high-quality, lightweight tonearms due to its low mass. 

Key Specifications (Approximate):

• Type: Moving Coil (MC)

• Frequency Response: 20 Hz – 75 kHz

Stylus Force:  1.75 grams

• Cantilever: Amorphous Boron

• Weight: 5.8 grams 

This cartridge was a backup cartridge that was never used.