Model CSD2X2VR Drop-In Ceiling Speaker With Back Can and Recessed Volume 70V & 25V Speaker Systems TILE SUPPORT RAIL FOR ENTHUSE XH RESISTLESS OY) Electrical Connection 1. Remove cover, Install cable clamp (If desired), and feed interconnecting cable into the electrical 2. Select speaker leads for desired system type: 70V Red, 25V Yellow, and COM Black for Control box. both. Interconnect the speakers In the system, making sure that all leads of the same color are connected Avoid swapping colors. together.