Features:
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Simple use and classic design: Fosi audio K1 headphone amplifier is easy to set up, no special software, app, or driver to install, a true plug-and-play digital audio adapter.
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A mini headphone amp that features with Bluetooth/USB, optical and coaxial inputs to fit with most home audio system, and RCA output can be connected to amplifier or powered speakers on your desktop; Built-in Hi-Fi headphone amp chip can drive most 16ohm to 300ohm headphones.
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Adopting classic QCC3003 chip to get clear and clarity sound without any audible noise even at high output, supporting up to 192kHz/24bit Suitable for headphones ranging from 16 - 300 Ohms.
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Fosi Audio K1 , as a mini stereo gaming DAC ,with volume control can not only provides you excellent Hifi sound but also be used as preamp or volume controller for your PC/MAC/Computer.
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What you Get: Fosi Audio K1 Headphone amplifier x1, 3dBi Bluetooth Antenna x1, PC-USB Cable x1, Optical Cable x1, Micro USB power cable x1, User Manual x1, an 18-month worry-free warranty and friendly customer service.
Highlight:
Input Type: Bluetooth 5.0, USB, Optical, Coaxial Output Type: 3.5mm (1/8’’) Headphone Jack, RCA
Chipset: QCC3003+STM32070F6P6+MS8416+PCM5100+MAX97220
Bluetooth Sampling Rate: 16Bit/48kHz
USB Sampling Rate: 32Bit/96kHz
Optical/Coaxial Sampling Rate: 24Bit/192kHz
Headphone Impedance: 16-300Ω
Headphone Output Power: 300mw/32ohm
RCA Output Level: 2V
THD: 0.001%
S/N: 110dB
Power Supply: 5V/1A
Dimensions (H*W*D): 94 x 71 x 23MM (3.70 x 2.79 x 0.90’’)
Net weight: 140g
Package Include:
K1 Headphone amplifier x1
User Manual x1
Type-C power cable x1
Optical cable x1
PC-USB cable x1
Quick Setup
PC-Windows for example
Step 1: Prepare K1, PC, AC adapter, PC-USB cable,
Micro-USB cable, Headphones.
Step 2: Connect the Micro-USB cable to the AC
adapteror device’s USB port, then connect the
Micro-USB cable to the K1.
Step 3: Connect the K1 to the PC via the PC-USB cable.
Step 4: Connect the headphones to the 3.5mm (1/8'')
headphone jack and turn down the volume control to
lowest level.
Step 5: Long press the multi-function knob to turn on the
unit, short press the multi-function knob to select
USB input mode, the indicator light stays on white.
Step 6: Left click on the computer desktop sound icon and
select Device: “Fosi Audio K1”.
Step 7: Open the audio application, play and enjoy!
Note: If using optical input, please switch Dolby/DTS
audio to PCM audio.