I think voice coil is burnt there is resistance when speaker is pressed down

The voice coil in the big speaker could have been damaged if driven to loud. See if the burnt smell is strongest near the center of the big speaker. If the voice coil is fried, you may be able to still find a replacement as there is a part number for the voice coil (V/C Assy, EON-G2220-27005-00) and the cone (EONG2
Cone Repl. C2REON15P-2)

Need more info, is it powered or passive, is audio making it to the speaker cabinet? Make sure by hooking the wires or cable to another speaker. If you have done that already then it is time to see if if the voice coil is burnt(indicating the sub was played too loud too long). Access the speaker and gently push on the cone. Any resistance or scratchy sound would indicate a burnt VC. Time to replace the woofer. Any other problems you would need to be much more descriptive. Make, model, how you were using the sub when it failed, etc.

The first thing to do is to check the resistance of the voice coil. Get an ohm meter & place one lead on each of the speaker terminals. If a value of 0 ohms results, or no reading at all, the voice coil is blown.

If you are pressing in, and suddenly gives way, my guess would be that the excursion of the speaker was too grand (common with car stereo, everyone loves bass) and the wires that wrap around the voice coil of the speaker were broken from the speaker inputs.

It is possible to recone the speaker, but by the time you track down a recone kit (highly unlikely that it is even available) you would be rather deep into the project.

Long story short:
check the speaker terminals with an ohm meter. If you get a resistance, they should work with free woofer movement. No resistance = blown woofer.

No the LOWER the resistance the MORE Output or Draw, If say it is 100 Watts into 4 Ohms, if you used a 2 ohm speaker it would draw 200 watts.(only if capable of delivering that amount of power) The LOWER the Resistance, the HIGHER the Current Draw. WATTS = AMPS x VOLTS. (This is not strictly true with amplifiers output though, as it is an AC Current, and a "Reactive" load, it has, Inductance, Capacitance and Resistance, all in one.and is worked out via a Formula) see below. http://en.wikipedia.org/wiki/Audio_power

http://www.hometheaterhifi.com/volume_1_1/v1n1spk.html

Now with Dual Voice Coils, Essentially, you can think of these speakers as TWO speakers in ONE enclosure. As such, They are basically TWO Speakers. Please see the website below it explains everything for you. http://www.diyaudioandvideo.com/FAQ/Wiring/
Everything is a function of Resistance and Ohms law.
Current (I) = Voltage (E) divided by Resistance(R).
Voltage = Current Multiplied by Resistance.
Resistance = Voltage divides by Current.

it sounds like the voice coil is burnt try pressing down on it while playing your radio if it turned on and off then it's a voice coil.

is the rubber surround blown out.. look at voice coil itself .. it could be repaired but maybe not worth it. can u actuate the speaker down and up.. if you can then the voice coil is fused.. and if u can and u hear or feel resistance then there is work to be done to the voice coil and spider. Could be costly.. if its just the rubber.. use silicone to re-seal it.. ol skool trick..

Twenty nine sounds pretty loud to me. A shorted voice coil in any one of your speakers will drop its resistance value so if the amplifier thinks its feeding a short circuit, will "protect" itself by shutting off. Check wiring carefully and each speaker at a little lower volume for sounds of distortion ie: shorted voice coils...

Does it smell funny?Smell around the top of the magnet and see if it smells like burnt plastic.If it does then the voice coils are burnt.Push down in the center of the sub if it dont move at all or has a grind the the voice coils are burnt up.Look at the lead going from the wire hook ups to the speaker cone are the intact?If not thats your problem.

do you have any more details? try to check for the speakers impedance or resistance using a multimeter. It should not go below 4 ohms or else it a 'short' or burnt voice coil.

i have a problem, i dont think my speaker is blown, but , it just looks like the wiring broke on the coil at the end that connects to the cone, i think thats how i can best describe it..its a 10" pioneer IMPP w/ integrated voice coil cooling system 500w max and also it looks like where the wires broke, the coil cam unglued from the cone.. hope someone can help me..is this something i can repair on my own or is it garbage?