$ 0 0 Technical Specs Output Power: Unknown (But the most powerful amplifier I have tried till date) Frequency Response: 20 Hz – 20 kHz ± 0.01 dB Dynamic Range: ~115 dB Impedance: 2 Ω (unbalanced), 4 Ω (balanced) Dimensions / Weight: ~43 × 11 × 43 cm / 8.7 kg