How to Use FIFINE Karaoke Microphones System with A Home Theater
There are basically two kind of home theater, one is true surround sound speakers connected through AV receiver, the other is soundbar. The following tutorial is based on that two different situation.
True surround setup, specific to AV receiver with FIFINE K036, K040 system. Because FIFINE karaoke systems use analog stereo signal for in & out, including RCA, 3.5mm cable, etc. This kind of two-channel audio source will leave rear or ceiling speakers at no use. But if it is not a big issue for not having true surround sound experience, there are two methods to connect with AVR. The first one, we would call it "one-source" setup, will mess up your current wiring. Therefore, if your AVR is connected with Blue-ray player, PS4, Xbox and the like, you could look further below for the second method - "combination of video/audio input".
One-source Method
- There is RCA OUT (composite OUT). Then the TV audio can go from here to the "R+L In" jack of K036.
- If only optical output, an optical to RCA converter and an extra RCA to 3.5mm cable are needed. TV optical jack-converter-"R+L In" jack of K036. Purchase converter: http://amzn.to/2H7BaZ9
Combination of video/audio input Method

Note: If you are getting confused and cant follow the tutorial, please message us on our Facebook page or support email with your TV and AVR model number, we will give you the step by step instruction.
Soundbar setup, you just need to look for the input jacks that are available on your soundbar.
3.If there is optical and HDMI (specific HDMI ARC), unplug the HDMI ARC connection and use the optical connection. And the rest setup is the same as above.
If you have any problem or would like to suggest any other methods, feel free to contact us! Some illustrations are below.
Below is the illustrations of "one source" method:
Smart TV+AV Receiver
| TV has AUX OUT or RCA OUT |
|
| TV has only optical out or coaxial out |
Notice: Converter Input: digital (optical/coaxial), output: analog (RCA).
TV Box/Chromecast/Roku+Smart TV+AV Receiver
| TV has AUX OUT or RCA OUT |
|
| TV has only optical out or coaxial out | ![]() |
Notice: Converter Input: digital (optical/coaxial), output: analog (RCA).
PS4/Xbox+Smart TV+AV Receiver
| TV has AUX OUT or RCA OUT |
|
| TV has only optical out or coaxial out | ![]() |
Notice: Converter Input: digital (optical/coaxial), output: analog (RCA).
Projector+Game Console/TV Box+Smart TV+AV Receiver
| TV has AUX OUT or RCA OUT |
|
| TV has only optical out or coaxial out | ![]() |
Notice: Converter Input: digital (optical/coaxial), output: analog (RCA).
Q: How to hook up with soundbar?
A:
| Soundbar has AUX IN or RCA IN | |
| Soundbar has only optical in or coaxial in | < |
Notice: Converter Input: analog (RCA), output: digital (optical/coaxial).



Hello, I have the following equipment:
1. Sony Multi Channel AV Receiver: STR-DH810
2. Sony LED TV
3. K036
4. Lenovo Mini PC with HDMI
5. HDMI Splitter
I have the PC connected to Splitter (IN) Going out is to Sony AV. TV is connected to Sony AV TV out. Everything works great but I can’t get the KO36 audio to work on the same channell HDMI1 with PC, Sony and TV which are all working together. I can YouTube Karaoke on my TV and Sound goes thru my Sony AV. I even bought an RCA to HDMI converter but still not working. However, it does work when I plug in the KO36 HDMI converter to another channel HDMI2 but of course now my PC and TV does not work on that channel because they are all connected to HDMI1. Am I missing a step or connection somewhere or did I purchase an old technology? Does FiFine have an HDMI version to work with Home Theater type setup as opposed to just plugging into a speaker with a built in amp? Thanks for your input.
Hi @Teresa Perea an external speaker is necessary. Otherwise, there’s no way to have lyrics or background music on your TV.
I cannot get this to work on my Samsung smart tv #UN65RU7100F. I have no cable box etc, no receiver. Just the speakers on the tv. Please send instructions or a link. Otherwise I will have to return. Thank u
Hi DJ,
First off, please cut off the connection between TV and the soundbar, including the bluetooth and the wire connection.
The connection is lg TV → K036 → lg soundbar
1. Connect the TV and K036, using the Digital optical to Analog RCA converter and 2RCA Male to 3.5mm Male Audio Cable.
2. Connect the K036 and soundbar, using the 3.5mm male to 6.35mm male Audio Cable. ( The 6.35mm pin plug into the K036, the 3.5mm pin plug into the soundbar)
Hi Fedor,
Sorry about the issue, since you have contacted our support email, our after-sales staff should take care of your case. Hope it will be fixed soon!