AIYIMA PJ.MIAOLAI A9 6K4 Vacuum Bile Tube HIFI Preamplifier/Headphone Amplifier
AIYIMA PJ.MIAOLAI A9 6K4 Vacuum Bile Tube HIFI Preamplifier/Headphone Amplifier
Very satisfied with the product and qualitative. Received quickly. I recommend the amplifier.
I like the cost
Excellent bass boost
Good product
Nice pre-amp with BT receiver. Works as described. I only gave 4 stars because the manual is in beautiful Mandarin and it came without the audio cables. Installation doesn't really require a manual, all you do is to plug in some cables, but the lack of audio cables was annoying. I might buy a second one for a different amp.
SPECIFICATIONS
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 (RCA input)
Distortion: 0.05%
U Disk Memory: ≤32GB
U Disk: MP3/WMA/APE/FLAC/WAV
Headphone impedance: 6-300 ohm
Maximum output power of headphones: 100mW (32 ohm)
Input sensitivity: 0.775V
RCA output level: 1,4Vrms
Bass gain: ±6dB
Product Size: 13*14*3 cm
Net weight: 0.42kg
Package included:
1*headphone amp
1*power adapter
1*Bluetooth antenna
2*6K4 tube
Features:
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