Output Power: 25W+25W (8Ω) three-pole (TR) connection 50W+50W (8Ω) ultra-linear (UL) connection Frequency response: 5Hz-80KHz (-2dB) Distortion: ≤0.5% (at 35W) Signal to noise ratio: ≥91dB (A) Input sensitivity: combined type ≤ 0.25V Maximum power consumption: ≤370W Electronic tube: KT88×4 6N8P×4 12AX7B×2 Gross weight: about 31 kg