Co Actual technology combines DSP time-correction and point-source design for symmetrical soundstage and micro-definition imaging Unique coaxial transducer integrates 8-inch (Sceptre S8) or 6.5-inch (Sceptre S6) midrange driver and 1-inch (25 mm), horn-loaded HF transducer with Coaxial Speaker Coherence Alignment Powerful DSP provides critical Temporal Equalization with multiple FIR filters 180W RMS, Class D biamplification with internal heat sink RF shielding, current-output limiting and over-temperature protection Balanced XLR and ½-inch TRS line-level inputs with A-taper level control Amplifier 'soft start' feature eliminates popping on power-up 102 d B maximum continuous SPL Internal power supply with IEC connector Power switch with on/off LED