EMB ESM2 450W Max Power Compression Tweeter WORKS FOR JBL, Peavey, Cerwin Vega, Gemini, EMB, BMB, etc EMB ESM2 450W Max Power Compression Tweeter WORKS FOR JBL, Peavey, Cerwin Vega, Gemini, EMB, BMB, Pyle-Pro, Mr.DJ & MANY BRANDS! Max Power: 450 Watts Single Voice Coil 1-3/8" Mounting Screw Impedance: 8 Ohm Frequency: 1.2k-20kHz