B057 Front Audio Signal Amplifier w/ Treble And Bass Adjustment Headphone Speaker Stereo Preamp

B057 Front Audio Signal Amplifier w/ Treble And Bass Adjustment Headphone Speaker Stereo Preamp

Features:
1. Do you have a line level signal source (TV audio, MP3 player, video game, phone, tablet, computer, speaker, etc.) that is just not loud enough/loud enough?
2. Best performance audio source signal amplifier with volume control: new audio source signal amplifier circuit architecture, providing high and low pitch adjustment, output level signal gain +20dB
3. The new power booster protection module is convenient for outdoor use: USB 5V power supply, suitable for outdoor mobile power supply
4. Wider range: 3.5mm + RCA interface for input and output, compatible with more devices
5. Compact Desktop/Desktop Mini design
6. Independent output volume adjustment
7. Using compact and thin desktop mini design, compact size, compatible with any device
8. Simple installation: input and output plug and play easy installation, you can enjoy different audio experience

Product Parameters:
- Input impedance: 100K Ohm
- Output gain: +20dB
- Frequency response: 20Hz-20K Hz
- Signal to noise ratio: ＞107dB
- Total Harmonic Distortion: ＜0.08%
- Intermodulation distortion: ＜0.01%
- Input port: stereo 3.5mm jack and RCA interface
- Output port: stereo 3.5mm interface and RCA interface
- Power supply: USB 5V
- Net weight: 310g
- Product size: 108 x 75 x 38 mm (LxWxH)

Package Included:
- 1 x Audio Signal Amplifier
- 1 x USB Power Cord 120CM
- 1 x USB Power Adapter

Note:
- Other items pictured are not included, for demonstration purposes only. Thank you for your understanding!

FAQ:
Q: What should I do if I feel electric noise?
A: There are three ways to tackle this problem. 1. Normally, it's just the noise level, generally you can't hear it at 100cm. Don't mind. 2. You can replace input signal source or replace audio signal cable with shielding and anti-interference. 3. Replace power supply or add a power supply filter.