How about karaoke? You hook up in the same avr?

It depend on your current theater system and the mixer you used. Also about the sound quality output that you want. I went with the very good to my ear route (ok-->good enough-->good-->very good-->perfect).
Playing by ear, I play the karaoke song first and see how it sound without the mixer being inline (hook-up). Then I listen to the song with mixer routed through speaker for sound quality and max volume. If it sound the same or equivalent, then mixer doesn't add any interferent into the sound. Otherwise, you need to check out some other brand of mixer. I don't like to mess or change the background music. Now for microphone input, that where I spend my most of my time adjusting the FX to make it sound better and match up with the actual music. I try 3 different AV and mixer setups before settling on the third one.

Source: Nvidia Shield with HDMI --> Analogue
AV Set: Emotiva 700 Bassx Sound processor and XPA 5 channel amp
Mixer: Allen Health Zed60 10FX
Speaker: Full 5.1 Klipsch RP-260 \ klipsch R-112SW
Microphone: GTD Audio G-788H

I used my setup mainly for listening to music/movies and occasionally karaoke. Anyway, friend and family said it sound extremely good for home entertainment system and blow away their stand alone karaoke system. A few friends and 2 sibling already have the converted to a similar setup. Just more powerful speaker, AV, and mixer. Same brands thought.

Anyway, sound quality have to do with what component you have and your taste in music. I spend good long 6 months with trial and error.

I Have nothing right now and i plan to have 2 floor klipsch and a sub.

Edited by user Monday, April 16, 2018 11:43:31 PM(UTC)  | Reason: Not specified

For some serious power and clarity but come as a cost. This my brother-in-law setup with pure XLR connections from all components. If you can get all XLR connection to the individual component, this help to isolate interference and provide clean sound. Too bad he live in New York; else, I be coming over often to sing.

Klisph rp-280f / klipsch r-115sw
Emotiva XMC / XPA combo
ZED 12FX 2Bus
Shure 4 mics setup wireless with individual XLR connection to the mixer (not sure of the model)

Edited by user Tuesday, April 17, 2018 8:48:46 AM(UTC)  | Reason: mistake

IDK, but I pretty sure that he just like to keep the mic channel separate and noise free. I do the same if i can afford that same setup.