PJ.MIAOLAI A9 6K4 Vacuum Bile Tube Preamplifier NE5532 OP AMP AUX Bluetooth 5.0 USB RCA HIFI stereo Mini headphone PreampParameters: Product number: A9 Color: Blac Working power: DC 12V 1. 5A Frequency Range: 20Hz 20KHz(3dB) Audio input: Bluetooth 5. 0 RCA U Disk Audio output: RCA 3. 5mm headphone port Signal to noise ratio:110dB (when RCA input) Distortion: 0. 05% U Disk Memory:32GB U Disk: MP3 WMA APE FLAC WAV etc Headphone impedance: 6 300 ohm Maximum output power of headphones: 100mW (32 ohm) Input sensitivity: 0. 775V RCA output level: 1,4Vrms High school bass
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PJ.MIAOLAI A9 6K4 Vacuum Bile Tube Preamplifier NE5532 OP AMP AUX Bluetooth 5.0 USB RCA HIFI stereo Mini headphone Preamp