Hi, I've blown both tweeter of my JBL control 5. I contacted a specialised shop but it would cost me to much to change them both, basically the price of 1 speaker (JBL control 5) .Do you think is there any way i can find a cheaper solution?

You will need to determine if it's the amplifiers or the tweeter themselves that are not working. If you open up the cabinets and check each tweeter with an ohm meter for continuity it will show if the tweeters are working, in which case the amp is the problem. if the meter shows that the tweeters are blown, you should still hook up another tweeter or speaker to the horn amp to see if it's blown and therefor took out the tweeters.
If any of this sounds complicated, you'd be best off taking the cabinets to the repair shop.

You could try switching around the cables but most likely the output driver transistors are blown.

The crossover caps may have failed, or the tweeters themselves burned out. Using a small 1.5 volt cell touched across the tweeter leads should produce a sound. If not- they are burned out.

Your driver has a damaged voice coil, you can either find a speaker repairer to replace the voice coil or find a replacement driver to fit.

The crossovers in professional speakers don't fail that easily. It could be a blown tweeter. To confirm remove the metal grille-- remove the screws of the Horn Tweeter -- remove the cable connectors on the tweeter terminals ( Red and Black wire ). Now if you have a multimeter put it in Ohms range and touch the probes on the tweeter terminals-- It should show a reading betwwen 4 to 8 Ohms depending what is written on the back of the tweeter magnet. If you do not have a Multimeter you can take an ordinary cell/battery ( 1.5v ) from a TV remote and touch the terminals of the Horn Tweeter with the battery. + to the tweeter + ( a small red dot or mark will be there on the tweeter ) and -- to the tweeter -- . When you touch the terminals or give 1.5 volt supply the tweeter will make a scratching noise.
If you do not hear the scratching noise - it indicates a blown tweeter coil and will need replacement.See link below for spares:-
http://legacysoundservice.com/catalog1/product_info.php?products_id=1417
But if it does, you are in trouble and will need professional help from a electronic technician.
Could be blown HF Amplifier, suspect the crossover last. They seldom fail.
Revert back for more help

you want JBL Professional group if this involves the Eon product line.

1-800-852-5776

Or on the website

http://www.jblproservice.com/

Walmart or a Specialty Audio Shop would carry a basic wiring kit for your job at task. As for the additional amp, thats your personal preference. If the Toxic Tx-600 AMP is a 600w amp, then I would say that is decent unless you're looking to get tickets for sound violations.. if you live in a city.

Sound like the tweeter is blown, take to local jbl agent for service.

you can probably by a generic type of motherboard from a shop like JAYCAR lookem up on the net ]

The tweeter is not the problem. The Eons use the vents below the tweeter to cool the amp and woofer. Sounds to me like you have a power supply problem in the amp, possibly a bad capacitor or diode. You have to check the amp for proper operation.