Grade B headphones may have aesthetic scuffs but are functionally tested before resale, ensuring operational reliability.

HD 25-SP II lacks the split headband, which some users note as a key feature for comfort and fit in higher models.

Users have replaced the ear pads due to lingering smells, suggesting they can be easily swapped for hygiene or comfort.

A reported issue of the left ear cutting out was resolved by re-seating the cable, indicating potential loose connections in used models.

Velour pads are praised for comfort, particularly by those with facial hair, but may not be optimal for sound isolation in DJ settings.

A secondhand purchase at £68 is considered a bargain compared to new pricing, especially with a Cex guarantee.

The HD-25 Plus includes a heavier, curled 3.5m cable, which some users find too heavy for stable use.

HD 25-C II comes with a 2/3m coiled copper cable, allowing for flexibility in movement, which some users prefer for DJing setups.

Yaxi Type-B pads are recommended for improved comfort and sound isolation, especially for DJing.

Oyaide cabling and Yaxi ear pads are popular aftermarket choices for upgrading HD-25 headphones to near-audiophile quality.

The curled cable in the HD-25 Plus offers more mobility but can be cumbersome, contrasting with lighter, shorter cables.

The HD 25-1 II is considered the "flagship" model with replaceable parts, making it more durable compared to the non-serviceable HD 25-SP II.

Users find the right-angled jack and shorter cable on certain HD 25 models beneficial for reducing cable tangling and maintaining a tidy workspace.