Does onkyo HT-s3100 supports 4 Ohms speakers from JBL(control 1)

get and hdmi cord

The speakers and amp are optimized at 6-ohms. Adding speakers will require you to run them in parallel with a possible dangerously low impedance; or in series, doubling the impedance which is safer.

These products are not designed to be modified.

Register and download the manual for free at retrevo.com

http://www.retrevo.com/search?q=Onkyo+Model+HT-S5300

Specs page 58-59.

"Grave" reviews??

If you set it up as specified in the manual it will be optimized. As far as volume settings while listening go, that is subjective and entirely up to you, your speakers and your neighors.

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Onkyo-HT-S5300-Home-Theater-Systems-manual/id/23655bh932/t/2/

It's all in the manual:

http://www.retrevo.com/support/Onkyo-HT-S3100-Home-Theater-Systems-manual/id/16697ag806/t/2/

Impedance must be matched to have a better sound performance. Althought, it has no problem b/w 4 Ohm and 6 Ohm impedance-it still work but the system may get hotter due to impedance mismatching. You can try and see how the sound goes.

Double check that the approtiate speakers (A or B ) are selected.

It's possible that you have the wrong speaker set (A or B). Look for that button and change the setting and see if that works

These JBL speakers are not made for a home stereo reciever. It could be part of the problem.

I do know that they have a high frequency input and a full range input on each speaker.

I am going to guess that maybe you have them connected to the high frequency input.

Are you using 1/4 inch jacks connecting to the input of the speakers?

I don't remember these speakers having a input for wires.

You may have another issue using these speakers with that reciever.

The JBL speakers are 4 ohms each, it is very likely that the onkyo requires 8 ohm speakers.

Look on the back of the Onkyo where the speaker jacks are at and see if it says anything about the minimum impeadance.

The impeadance is the ohms. Most home recievers are not designed for anything less than 8 ohms. Some are, but most are not.

Using 4 ohm speakers on a system that requires 8 ohm speakers can cause damage to the reciever. Mostly at higher volume levels, it will cause the reciever to overheat and shut off, maybe short out a channel. It pulls 2 times the amount of current thru the output transistors as 8 ohm speakers.

Let me know if this helps you or if you need more help.

You can find manuals for Onkyo products here http://www.onkyousa.com/download/own_manuals.cfm