This study investigates the effects of varying prosodic boundary strength and lexical stress on domain initial /kl/ clusters in German by means of Electropalatography (EPG). Recordings of 7 subjects were analyzed using temporal and spatial parameters derived from the EPG data. Temporal and spatial parameters show that boundary effects are stronger for the first consonant while in the temporal domain stress affects the second consonant rather than the first. Overlap was found to be greater in unstressed position and at lower prosodic boundaries. Furthermore, /kl/ appears to be more susceptible to stress effects when not preceded by a boundary.