Vibe BlackDeath Full Range Ultra Class D 8000w max: 4000w RMS @ 1 ohm Amplifier. Our Korean built full range mono amps can be used with Subwoofers: Mid Range: Mid Bass and Tweeters and have “Combination FET” technology for improved heat dissipation and more stable and reliable performance. • Ultra class D delivers incredible efficiency of up to 92%• Wide frequency response allows use with not only subwoofers but also full range speaker systems.• Unique combination FET technology delivers improved heat dissipation.• Dual internal cooling fans improve runtime under extreme output conditions.• Massive power output from a small footprint: typically 50% smaller than regualr class D amplifiers.• Full EMI and CE approval Model: BLACKDEATHM8K-V6 Configuration: Competition Monoblock Dimensions (H x W x D): 2.7” x 12.6” x 8.9” (68mm x 320mm x 225mm) RMS @ 1Ω Mono (12.6v 1% THD): 1 x 3000 watts RMS @ 1Ω Mono (14.4v 1% THD): 1 x 4000 watts Maximum Power: 8000 watts Frequency Response: 5Hz - 20kHz Crossover Type: LP / HP / Full Crossover Range: 5Hz - 20kHz THD: 0.07% Damping Factor: > 1000 S N/R: 75dB Topology: Ultra Class D