Model: MC-6FT (100V/70V line transformer) Part No.: 55600057 Feature: With Firedome & Transformer Power: 10 watts Material: Mild Steel Sound pressure level, power Watts/1m,dB: 103 at 1 Watt at 1 metre: 93 Effective frequency range, Hz: 100-15,000 Dispersion at 1,000hz, degrees° conical: 170 Ceiling cut-out required: 195mm Terminal: Ceramic Block Mounting: Mounting Bracket Transformer power tappings, Watts: 0.75, 1.5, 3.0, 6.0, 10 Input impedance standard model, Ω: 13.33k, 6.6k, 3.3k, 1.66k, 1.0k Impedance, Ω: 8 Max/min ambient temperature: –20°C to +50°C Manufacturer: MEDC Country of Origin: UK Note: Model MC-6T without firedome and has been obsolete and not in the production. Replacement model is MC6FT with firedome and still have ready stock.