PJ MIAOLAI A9 Electronic Tube Preamplifier HiFi Bluetooth 5.0 Mini Headphone Amplifier Lossless Music Player

PJ MIAOLAI A9 Electronic Tube Preamplifier HiFi Bluetooth 5.0 Mini Headphone Amplifier Lossless Music Player

Features:
- Bluetooth 5.0
- Multiple groups of audio source input
- High fidelity headphone amplifier
- Treble and bass adjustment
- Dual operational amplifier NE552

Parameter:
- Model: A9
- Working voltage: DC12V
- Frequency response: 20Hz-20KHz (+/-3dB)
- Audio input: Bluetooth 5.0/RCA/USB flash drive
- Audio output: RCA/3.5mm headphone port
- SNR: ≥110dB (RCA input)
- Distortion: 0.05%
- USB flash drive: 32GB
- USB flash drive: MP3/WMA/APE/FLAC/WAV etc.
- Headphone impedance: 16-3000
- Headphone maximum output power: 100mW (32 load)
- Input sensitivity: 0.775V
- RCA output level: 1.4Vrms
- Voice gain: +/- 6dB
- Size: 13 x 14 x 3cm
- Weight: 0.42kg
- Packaging weight: 0.7kg

Package Included:
- 1 x Host
- 1 x Power Adapter
- 1 x Bluetooth Antenna
- 2 x Electronic Tube