E47 Mini Headphone Amplifier Headphone Amp 4*NE5532 Chip Output 200MA For Earphones 16-300 Ohms

E47 Mini Headphone Amplifier Headphone Amp 4*NE5532 Chip Output 200MA For Earphones 16-300 Ohms

Description:
47-type headphone amplifier circuit is a very classic circuit, which uses 2pcs op amp to output to the headphone amplifier, which can reduce the distortion of the headphone amplifier and increase the power supply current. The E47 headphone amplifier uses a separate voltage op amp, and then uses 4pcs op amps to output in parallel, so that the output current is greater than 200MA. And it adopts a structure without negative feedback, which is more dynamic and more detailed. It is highly cost-effective. A recording line is included.

It can be charged by your mobile phone charger or via computer's U port. After upgrading the battery management system, it can be charged when you are listening to music. Support short-circuit protection and open-circuit protection. The indicator light is off after fully charged.

It boasts beautiful and reasonable layout, imported tantalum capacitor array for AVX, 4*NE5532 chip as output.

Features:
1. Double 47-type performance architecture, without large loop feedback, driving headphones with better dynamic details
2. Headphone protection circuit for Japan Omron
3. Excellent architecture and high-quality batteries, the total battery capacity reaches 1600mA. Although the op amp is doubled, the battery life is more than 8 hours (the actual test is about 13 hours, medium volume of HD202 headphones), which is more durable than many high-level headphone amplifiers
4. All aluminum alloy chassis, exquisite appearance, ergonomic design, the knob will not be exposed, easy operation is more assured
5. High-precision potentiometer for Japanese ALPS, lower left and right channel error
6. Shielded headphone jack for Foxconn. No noise level at the maximum volume

Specifications:
- NE5532 cheap and neutral voice op amp chips used by default. Can be upgraded to OP275, 2134, 2604 (recommended) and other models according to your preferences to experience different sound performance headphones
- Load range: 16-300 ohms
- Frequency response: 10-40KHZ
- Signal-to-noise ratio: >108dB
- Distortion: 0.003%
- Battery life: about 10 hours
- Size: 57.5x16.5x97.5mm

Package Included:
- 1 x Set of Headphone Amp

Note:
- It is assembled and designed with a shell.
- It comes with a recording line by default.