Cadence QRS Series Monoblock Class D Amplifier QRS1.3000D Specifications Channel/Class: Monoblock / D RMS Power@1 ohm-14.4V: 3000W x1 RMS Power@2 ohm-14.4V: 1950W x 1 RMS Power@4ohm-14.4V: 1400W x 1 Fuse Rating: None Dimensions (Lx W x H): 57,5 x 19,2 x 5,9 Unit Weight: 4.40 KG