We had this receiver for a little while and we just bought new speakers. (Bose) It worked for a little while and then it shuts itself off. We moved the speakers to another receiver and they work fine. The KHL receiver now only says check speaker. Any suggestions

I would get a receiver that puts out a little less power than the speakers can handle. This will prevent you from blowing them by sending too much power to them, but will still send enough power to make them sound good.
An example would be, if you're speakers have a combined power of 500 watts get a receiver around 495 watts or a little less.

you're going to need a ohm meter (good electrical testers have them) and make sure ohm ratings from speakers match the ratings for your receivers. Sounds like to much resistance for receiver(s)

Correct the wiring - read the manual--

Seems there are 2 underlying problems-

no am/fm? are antennas connected? is there static active on any station tuned to?

in terms of low bass response- double check settings both in the receiver and also on the sub itself if any available.

This is the only way a bose works

chances are you have the volume too loud and the speaker wires are crossed.
all speaker wires need to be with the positive on the right and negative on the left if you have them anywhichway than it will work on low volume and not a very good sound.
look closely at the wires and they should have a red or so color on one side or the wire jacket itself will have a round side and a flat side

optical connection in tv is only input optical connection in receiver is only input will not work.need to connect rca jacks to tv's audio out jacks behind tv to any available input in receiver

You might be faced with the age-old Bose issue of a 4-ohm speaker set. The ohm rating must be compatible. Most receivers drive 8-ohm speakers. If indeed they are incompatible, then it's up to you which component you want to replace (I don't recommend trying to find a converter to use the Bose speakers). The receiver sounds like it is new, so perhaps the speakers... or return the receiver and get one that can drive the Bose.

Has it ever worked?

Try this - connect one pair of its speaker wires at a time and test it. Watch the polarity.

• Make sure all cube speaker arrays are connected to the proper terminals according to their
position in your room.
• Check to be sure all wires are connected to your surround receiver with the proper polarity
(+ to + and – to – wires). Incorrect wiring can result in a total loss of module output.
• Correct any wiring problems before you plug in your receiver and turn it on.

i added the vcs 10 center channel speaker for 180 to "upgrade" to the 7.1 and bought a new pioneer vsx-91txh receiver on ebay for 515.