B015 Front Stereo Signal Amplifier Booster Headphones Speaker Amplifier Headset Dual-Audio Source

B015 Front Stereo Signal Amplifier Booster Headphones Speaker Amplifier Headset Dual-Audio Source
Product description:
You have a line level signal source (TV audio, MP3 player, Video game, mobile phone, tablet, computer, record player), but desire louder sound or bigger volume?
A powerful signal amplifier receiver or volume control, you may need a long line connecting TV audio and the receiver on the other side of the room to provide high gain through any line level signal source, allowing longer cable operation or requiring "buffer" to amplify the lower volume. You may use it between the line level signal source and power amplifier as a signal amplifier, 3.5mm + RCA port matches almost all product interfaces.
The product improves the sound amplification and reduces ground noise by controlling the signal, and it has large dynamic range without produce cracking. It controls output volume through a sensitive volume knob, the output of the headphone interface can drive 16-600 headsets, and uses AC9V transformer for power supply to ensure full power.
Product parameters:
Input impedance: 100K Ohm
Maximum input level: +14 dBV
Output impedance: 47 Ohm of each output channel
Frequency response: 20 Hz 20K Hz
Signal to noise ratio: > 107dB
Total harmonic distortion: < 0.08%
Intermodulation distortion: < 0.01%
Input port: stereo 3.5mm socket and RCA port
Output port: stereo 3.5mm port and RCA port
Power supply: AC9V
Net weight: 0.51 kg
Gross weight with packaging: 0.61 kg
Product size: length 109 mm X width 79 mm X height 39 mm
Packaging size: length 185mm X width 135mm X height 65mm
Kit list:
1 X stereo signal preamplifier booster dual-audio source headphone amplifier
1 X AC9V power adapter (AWG) line length 100cm