Problem with frequent subwoofer blowing!

Hey guys.. I am a new member and have joined to seek a solution to a very annoying problem.

I have recently bought the Logitech z623 THX-CERTIFIED 2.1 speakers. These speakers are rated for 200w RMS (35x2 sattelites and a 130w subwoofer).

The problem is that whenever i crank the volume past 75% and bass past 50%. The subwoofer gets lively but after a few hours,it blows after emitting a weird smell... It still works but there is a crackle from the cone.

I have replaced the unit 2 times in a week already and I need a proper solution and not cranking it up to high volumes is not an option for me... It think the in-built amp is not powerful enough and the sub blows easily..

Please provide me with a cheap and DIY solution.. Thanks a lot!!!

Ps- I've uploaded the specification in a screenshot.

 

Yeah but what should I do now... I know it can't handle that volume in it's own... There must be something to tackle this situation by connecting any device or something?

 

Found this, sounds weird " When you first set it up, let it run at a low - normal volume and slowly increase it over the next few days. My first set smelled like burning rubber when I blasted it right out the box. After a few days you should be golden to use any sound level." Sounds like their quality control is lacking. I saw many complaints on the web about the subs failing on this model. Back in the 80's a friend of mine was blowing speakers with a radio shack brand amp, it had something to do with the output to the speaker direct coupled to the transistor output of the amp. Had to send it back to the factory and they added a capacitor or something. I replaced my Boston Acoustics with a Cyber Acoustics CA-3908 , not as powerful but suits my wife when she is jamming with You tube Videos.

 

Frankly, if you want better audio quality (and volume), you should be working with real audio equipment and not computer hardware. Even budget home audio hardware sounds better than the high end computer hardware.

 

Blown speakers or damaged speakers can happen by clipping, having too little power, having too much power, bottoming out by the former hitting the back plate or top plate, bad box design, or increasing the level of a frequency or group of frequencies through equalizing. Controlling how much volume or loudness should always be done to minimize damage.

Code:

http://www.eminence.com/support/how-speakers-work/
http://www.eminence.com/support/understanding-loudspeaker-data/

Nothing going to be cheap for audio DIY as a hobby because you always want more and more and more. It's best set a goal and try to achieve it in this hobby. The following should start you on the crazy of the audio DIY hobby.

Code:

https://www.parts-express.com
https://www.diysoundgroup.com