– 1″ ASV voice coil. – 20mm Silk dome neodymium tweeter. – 2-way passive crossover with rubber housing. – Impedance 4 Ohm – Tweeter crossover 12dB / oct – Midbass crossover 6dB / oct – Crossover cutoff 4900Hz – Power recommendation 25-130W – Sensitivity 89dB – The set does not include mounting screws..