The NAD C 660 is a CD recorder that was manufactured from 2001 to 2002. It functions primarily as a device for duplicating audio CDs, enabling users to create digital clones of original CDs onto blank media. It offers the flexibility to copy entire CDs or select individual tracks from multiple discs. The copying speed can be configured at 1X, 2X, or 4X the standard playing speed, enhancing versatility for various needs. Once the desired tracks are copied, the user can finalize the disc, which takes about 90 seconds and ensures playback compatibility with any standard CD player. The C 660 only accepts 'DIGITAL AUDIO' blank discs, optimizing sound quality compared to typical computer-graded media. The model includes a remote control for convenience. As an additional feature, users can utilize the device as a regular CD player, although many prefer to reserve it for archival purposes to prolong its lifespan. The approximate original price was around 1,250 DM in 2001.