To minimize the interference to the sound, the power part are completely separated from the audio part.
With treble/bass adjustment and mini compact size, it can bring you much fun and convenience.
It is made of aluminum alloy material and the headphone preamplifier is durable and reliable to use. The signal switching adopts relay switching, which is better than the common analog switchover switch.
The length of the product is 14.8cm, the width is 9.8cm, the height is 3.3cm.
It has a wide applicability and can be used for living room, study, office, etc. The products adopts replaceable design in the tube so you can use better tubes for upgrading such as 6JI, GE5654, etc.
Item Name: Headphone Preamplifier
Material: Aluminum Alloy
Bluetooth Version: 5.0
Main Chip: QCC3034+ESS9023+6K4+NE5532+JRC4556
Frequency Response: (±3dB)20Hz-22KHz
Input: BT5.0 APTX RCA
Output: RCA 3.5mm Amp Output
Signal to Noise Ratio: 100dB
Distortion Rate: 0.001 Percent
Output Impedance: Up to 600R
Headphone Output Impedance: 16-150R
Line Input Impedance: 600R-20K
Headphone Power Output: 30mW@16R, 50mW@32R, 70mW@68R, 70mW@150R
RCA Output Level: 2Vrms
High and Low Gain: ±8dB
Power Supply: 12V 1A
Features: High Performance, High Stability, Adjustable
14.8cm x 9.8cm x 3.3cm/5.83" x 3.86" x 1.3" (Approx.)
Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measure.
1 x Headphone Preamplifier
2X 6K4 tube
1 x Power Adapter
1 x Amplifier Antenna
1 x User Manual
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