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
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
FAQ:
Q: How to switch the 4 inputs mode ?
A: Short press the volume button to switch inputs mode, the indicated lights are on the back panel, white light -- USB mode, blue light --bluetooth mode, red light -- optical mode, green light -- coaxial mode.
Q: RCA output and Headphone output can work at the same time ?
A: Yes
Q: USB Device not recognized on Windows?
A: 1. Select Start, then type device manager in the Search box, and then select Device Manager.
2. Expand Universal Serial Bus controllers. Press and hold (or right-click) a device and select Uninstall. Repeat for each device.
3. Once complete, restart your computer. Your USB controllers will automatically install.
Q: How to do plug and play on Windows?
A: 1. Just click the sound icon in your notification area.
2. Click the “Select playback device” option.
3. Select the playback device "Fosi Audio K1".
Q: How do I get the highest 32Bit/96kHz resolution on my PC?
A: Right-click the PC sound icon in the lower right corner, open Volume Mixer, click on the icon of the device/SPDIF: “Fosi Audio K1” to open the Properties, click the Advanced, select 32Bit, 96000Hz for maximum sound quality output.