KEF 107 and Kube setup


I ran into some problems helping my parents connect their new TV to their old unused home theater system. The KEF 107's fill the room very well but vocals from both music and movies sound muffled.

I also found the corresponding Kube which they never used but I'm having trouble getting it to work. The only audio source is the TV connected to a Sony V555ES via digital optical audio. Connecting the Kube to the Pre Out (Front) nor the tape in/outs work. There doesn't seem to be a tape monitor button or a pre amp in so I can't figure out how to get the signal into the Kube and then back to the receiver. Thanks!

Here's a link to the receiver's manual for reference:https://docs.sony.com/release//STRV555ES.PDF
toadtech
@imhififan , exactly why I said " possible ". Good idea with the analog audio out !
Well, you could attempt to use analog outputs from the TV and put the Kube there. Alternatively, I did notice this receiver has some very limited EQ (glorified tone controls) which you might be able to use to fill in.

One other option is to use a receiver with full room correction, which will have better ability to adjust the receiver for the lack of a Kube.
Thanks for the tip! I took the top hat cover off and gave it a listen and there isn't any sound coming from the tweeter. I guess I'll look into repairing or replacing the tweeter.