Model:P-108 P-102 P-100 ============================================================ Power:30Wx2CH60Wx2CH 50Wx2CH ============================================================ impedance:4Ω 4Ω4Ω ============================================================ sensitivity:90dB 90dB 90dB ============================================================ speaker: 8inch12inch 10inch ============================================================ Recommend for a large size room or hall or bar that requires vocal clarity colorful light should be more crazy looking ProfessionalSpeaker system