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Our website:

 www.fosiaudio.com

Amazon store:

 www.amazon.com/fosiaudio 

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 Fosi Audio

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 Fosi Audio

After-sale Service and Technical Support Email:

 

sale

@

fosiaudio.com 

support

@

fosiaudio.com

customer

@

fosiaudioshop.com

Warranty Information

• All Fosi Audio products have an 18-month limited warranty on 
  parts and labor from the date of purchase. Please contact us if 
  you have any problems.

About Fosi Audio

• Fosi Audio designs and builds innovative audio products with 
  all your music in mind. Great sound, simple but elegant 
  designs, high-quality materials, and truly useful features are 
  what Fosi Audio is about. We sincerely hope you get as much 
  enjoyment from our products as we’ve had to create them!

Fosi Audio Product’s User Manual

Содержание K4

Страница 1: ...Thanks for choosing us K4 Mini Stereo DAC User Manual ...

Страница 2: ... Mac Fosi Audio K4 DAC ensures exquisite musicality accurate and realistic phasing and reproduction of the original sound Output Type 3 5mm Headphone RCA Chipset CT7601SR MS8416 PCM5100 MAX97220 Optical Coaxial Sampling Rate 24Bit 192kHz Input Type USB Type C Optical Coaxial USB Sampling Rate 24Bit 96kHz Headphone Impedance 16 300Ω RCA Output Level 2V Power Supply 5V THD 0 001 Power Input Interfac...

Страница 3: ...Long press to turn on and turn off 2 Mode Switch Short press to switch between modes 3 Volume Tuning Input Mode Indicator Treble Control K4 MINI STEREO DAC BASS TREBLE MODE VOL USB OPT COA USB DC Power Input Optical Input Coaxial Input RCA Output COA AUDIO IN OPT DC 5V AUDIO OUT www fosiaudio com USB POWER ...

Страница 4: ...5mm headphone jack Step 3 Long press the multi function knob till the indicator lights up to turn on the power Step 4 Short press the multi function knob to select USB input mode Step 5 Left click the sound icon on your PC Mac and change the sound output device to Fosi Audio K4 Step 6 Turn up the volume PC Windows for example Step 2 Step 1 Step 3 K4 Lights multi function knob Step 7 Enjoy it Step ...

Страница 5: ... knob to switch on K4 Step 5 Short press the multi function knob to select OPT input mode Step 6 Turn up the volume and enjoy Step 7 Play the music on your PC Mac and enjoy NOTE 1 Please turn down the volume to the minimum before powering on the K4 NOTE 2 The volume control knob combines power switch and mode switch You can long press to turn on and turn off short press to switch between modes NOT...

Страница 6: ......

Страница 7: ...t the Type C cable to the K4 Step 2 Connect the TV to K4 s coaxial port via the coaxial cable Step 3 Set the TV s coaxial output sound to RAW PCM Step 4 Long press the multi function knob to switch on K4 Step 5 Short press the multi function knob to select COA input mode Step 6 Turn up the volume and enjoy NOTE Some devices default sound output are of Dolby or DTS type which K4 DOES NOT support Pl...

Страница 8: ...e check if the input mode selection is correct The K4 supports 3 5mm headphone output and RCA sound output simultaneously You can check if the headphone output is normal or not when you find the RCA output has no sound Please try to replace the RCA cable and test again 3 Why do I get endless white noise Please check that your input device is using Dolby DTS audio If so please change it to RAW PCM ...

Страница 9: ...ntact us if the problem still insists 6 How to do plug and play on Windows Just click the sound icon in your notification area Click the Select playback device option Select the playback device Fosi Audio K4 7 I can t play Spotify music in Plug and Play mode Please exit the Spotify app and switch the playback device to the computer s own sound card device open Spotify and play confirm that it work...

Страница 10: ...nd retest Contact us if the problem still insists 10 Why my device stops working after short time use Make sure your audio source and the headphones amplifier or active speakers you connect are working well And please check over all the connections of the input and output cables Then you can try to change the audio input source output devices and cables to test again Also please check if the power...

Страница 11: ...6 300 Ω 16 300 Ω 16 300 Ω Input Ways USB OPT COA USB OPT COA BT USB OPT COA BT USB OPT COA Output Ways 3 5mm Headphone RCA 3 5mm Headphone RCA 3 5mm Headphone RCA 3 5mm Headphone RCA Treble Bass Control Yes Yes No Yes Size 4 4 3 7 1 2inch 3 6 3 9 1 4inch 3 7 2 8 0 9inch 4 3 3 9 1 2inch K4 Q4 K1 K2 ...

Страница 12: ...udio products have an 18 month limited warranty on parts and labor from the date of purchase Please contact us if you have any problems About Fosi Audio Fosi Audio designs and builds innovative audio products with all your music in mind Great sound simple but elegant designs high quality materials and truly useful features are what Fosi Audio is about We sincerely hope you get as much enjoyment fr...

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