Yes. If your CD transport (or CD player) has an SPDIF output, you can connect it to the WiiM Pro/Pro Plus via its SPDIF input. You can then transmit the CD source to other WiiM devices wirelessly for multi-room playback, or play it directly through the digital (SPDIF, Coaxial) or analog (Line out) outputs on the same WiiM Pro/Pro Plus.
For details, see How to Use Audio Input Ports of the WiiM Pro and WiiM Pro Plus.