Nobsound PM1 amplifier HI-FI Bluetooth NFC amplifier output 20W+20W BT or without BT two versions

Nobsound PM1 amplifier HI-FI Bluetooth NFC amplifier output 20W+20W BT or without BT two versions. Features: Aluminum alloy shell. NFC bluetooth function. Headphone interface 6.5mm and 3.5mm signal input oterface. Reasonable circuit. Professional transformer. Toshiba amp tube. Parameters: Power supply: 110V~220V50/60Hz. Output power: 20W20W. Inpput impedance: 47K. Input sensitivity: 450mV. Treble: 10db. Bass: 10db. SNR: 76dB. Frequency response: 20Hz-20KHz-2db. Dimension: 2424*6.8cm. Weight: 3kg

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