Every time I try to use 1/4 cables the eon 315s buzz bad... both of them do... I got a set of yorks that don't buzz on the same setup.... what is causing this? ??

Hi, you didn't say if the mic actually passes sound? The C-1 is a condenser Mic & needs phantom power - switch on the rear of your mixer. If that's no help, what happens if you disconnect the mic, then turn the levels back up? Still hissing or gone? If it's gone then it's the Mic - must use a 3 wire cable, preferably XLR so it gets the phantom power. If the hiss is still there without the Mic then sounds like the mixer is faulty - try some of the other channels..... How loau is the hiss - just in the background or as load as a vocal "one, two" test? A few things to check anyway...... Good Luck!

Sounds like bad power supply capacitors

For some reason the soft on protection circuit has failed. it is not a simple fix and would require the amplifier module to be removed from the speaker to assess the damage.

No reason to worry about getting signal to the LED's... you set the trim gain so the loudess sound or signal that can happen barely clips or is slightly less. That is the starting point. Watch videos on mixer setup on YouTube. DOn't worry if their mixer is different as the principles are the same.
Mixer fadrs should be around 80% up when system is balanced. ALWAYS use BALANCED cables... eithrt XLR or TRS.

Hi.

If the amp is working, then most of the time the buzz is given by a bad grounding. Test the amp using different wall sockets, and possibly test it in a different home (there may be an earthing problem with the home network). If the problem goes away, then it was the wall socket or the home power network. If the buzzing is still there the problem is with the amp. Check the earth connection at power cord and psu and test the amplifier's PSU components. Check also the audio connections inside the amp (the back of the female jack input sockets). A small contact in there will result in a loud buzz.

Make sure you are driving this with a balanced input XLR or TRS type cable. The driving device should have the SAME type output...

This sounds like fret buzz caused by improper setup of the guitar. Likely the intonation needs to be set and the string height... possibly a truss rod setup as well. Take the guitar into a shop for setup unless you are adept at setting. There are a couple videos on guitar setup on YouTube, however do NOT try a truss rod adjustment yourself.

I know this is late, but... I ran into the same issue. Apparently on some models, there is round hole further to the left than the square on the diagram in the manual. You have to stick a paper clip or similar object in and depress it. It would be nice if they would tell you that in the manual. I had to call JBL.

Watch vidoes on "mixer setup". Don't worry if they are not your exact model as the principles are essentially the same among the various types. EQ controls for the channels are "flat" when they are all set to 1 o'clock. The lower one reduces or boosts the bass, the next the midrange and the high the trebles. SOme have a midrange EQ frequency which adjusts the cnterpoint of the midrange frequency. Leave this at 12 o'clock until you get familiar with the rest if your unit happens to have that extra control.

The JBL EON 305's are 8 ohm speakers. The PMP5000 wi;; produce 400 Watts per side into a 4 ohm load (600 Watts peak). Into your 8 ohm speakers, the peak current will be halved while the voltage remains the same so you ACTUAL power per side is 200 Watts. It is hard to know how much you expect to get out of the amp. This power would fill a venue of at least 2000 sq ft. If you need more sound, try borrowing another 8 ohm speaker for each side and parallel them with the EON's as a test. That will double the power and add 3 Db more of sound. Your main slider should be around unity typically. This amp is a class D switching type (very efficient) and runs on +/- 70 volt rails. giving about 45 volts RMS output. At 4 ohms, this is just over 10 amps giving 450 Watts... at 8 ohms this is around 5 amps or 225 Watts.


Please read my tip on Fixya about the ground hazard of channel A when using 1/4 inch cables out of the PMP units... essentially the BARREL of the connector from channel "A" is the HOT,... NOT the tip of the PLUG. Ground the barrel IN ANY WAY AND YOU FRY CHANNEL "A" AMP !!!