Hifi Headphone Amplifier For PC Cellphones Preamplifer for Active Speakers (w/ USB Decoding)

Hifi Headphone Amplifier For PC Cellphones Preamplifer for Active Speakers (w/ USB DAC)

Description:
Sa9023 and es9018k2m solution are added to this amp. The USB DAC amplifier supports 24/96. Its USB decoding interface is built for connection to your PC or iPad, enabling high decoding quality.
 
Specifications:
- Item Name: Desktop Headphone Amplifier
- Model No.: HPA-3
- Dimensions: 280 x 110 x 44mm
- Condition: Brand New
- Amplification: Transistor
- Frequency Response: 10Hz-35KHz (-0.3db to -1db)
- Distortion Degree: <0.001% (6mW/300R)
- SNR: >95db
- Output Power: 200mW/300R; 400mW/60R
- Power Consumption: <5W
- Input Impedance: 47 KΩ
- Compatible Impedance: 8-2KΩ
- Power Supply: 220V AC
- LINE OUT: 60Ω
- PHONE OUT: 5Ω

Features:
- USB DAC amplifier in one
- High density, full sound, balance, high resolution, high dynamics, good high frequency extension
- When the magnification times is set to be 0dB, it stands out in its driving force for HD650 against medium to high frequency
- High quality sound quality, tone quality and style, featuring open, balanced and loose sound field
- Has passed strict AP tests before hitting the market
- Compatible with mainstream Hifi headphones. This version doesn't support USB connection to your cellphone. While it supports 3.5 to dual RCA cable for connection to your mobile phone.
- Layout and circuit as the same as the original one
- IC socket for easy replacement of operational amp
- Audio dedicated resistors for excellent sound quality
- Original electrolysis
- Chemical Electrolysis: Clean high-frequency and low-resistance background, excellent extension at medium frequency
- Premium quality for using NRJHF-1-AU
- High quality for adopting ECE dip switch
- Gold-plated fuse for fine sound quality





① Power Indicator
② 6.35 Output Headphone Interface
③ Volume Knob

④ 2 RCA Signal Input Interfaces
⑤ 2 RCA Signal Output Interfaces (As a preamplifier which outputs to active speakers)
⑥ Power Switch
⑦ Fuse (Can be replaced by 5x20mm)
⑧ AC Power Supply Socket

⑨ USB Signal Input
⑩ 2 RCA Signal Output Interfaces (As a preamplifier which outputs to active speakers)
⑪ 2 RCA Signal Input Interfaces

Package Included:
- 1 x Headphone Amplifier

Note:
- It is finished and ready to use.
- There are two colors for the front panel. And items with different front panels will be delivered at random.
- The DAC version doesn't support USB connection to your cellphone. While it supports 3.5 to dual RCA cable for connection to your mobile phone.