“Blowing” a subwoofer describes damage within the woofer which causes undesirable sound or no sound in any way. Damage may occur suddenly or slowly over time. Frequent causes of damage to woofers are clipping signals, over/under powering, and functioning outside of this enclosure’s tuning. Each of these can cause specific damage to certain internal areas of the sub.
CLIPPING SIGNALS Driving an amplifier into cutting can make it output electricity over its power evaluation. The”summit” of the power waveform is”trimmed” so it is flat at the top. The surplus power from a cutting sign builds up as heat from the voice coils. As the temperature of the coil gets extremely hot, the coil adhesive melts, and the coils expand. Eventually they will detach from the former. If heat build up is fast enough, the gases within the coil glue (similar to lacquer) releases hot gases which may create a bubble in the former.
To prevent clipping, first you have to know the voltage of this signal coming out of your headset. Employing source audio with consistent quality and volume level helps prevent cutting. Playing sound sources with irregular volume level and quality from track to track may cause the amplifier to getting an excessive amount of signal at its set gain degree.
Turning down the gain on your amp lessens the energy level coming from the amp into the subwoofers. As soon as you isolate the source of the clipping, then you can set your amp levels for much better functionality of the subs.
OVERPOWERING YOUR SUBWOOFERS
Once an amp constantly produces more than the RMS power required for the speaker, this builds up heat in the voice coils. This extra power level builds heat up in the voice coils.
Another potential is over-excursion from peaks in the energy waveform, which could physically damage the woofer rather than causing heat buildup.
UNDERPOWERING YOUR SUBWOOFERS
If your amp is not strong enough to fully drive your speakers, then you’ll need to turn up the gain of this amp to get a”standard” audio level. The amp tries to deliver more power to the subs than it’s designed for, cutting the sign. This under-powered situation can nevertheless cause heat buildup in the amp that will overheat the voice coil.
The best way to avoid damage is to look for a method where all pieces that have harmonious power handling according to your own goals for the system.
Particularly when partially upgrading, consider updates that may be required to your charging system to supply consistent, clean power for your audio system elements.
The tuning of your enclosure strengthens sound waves at particular frequencies. This usually means the subwoofer does not need to work as difficult to create those frequencies. This change in the movement of the voice coils impacts the impedance at certain frequencies (check out this video on box rise). Operating well outside the pruning of your enclosure can lead to damage because of this change from the energy handling dynamics.
Car audio is an extremely technical subject, and there’s a lot that could go wrong. Fortunately, our customer care staff are available to answer your technical questions before you damage your gear. Build your confidence by studying the basic concepts of electronic music equipment. Get loud while saving time and money on replacing or fixing gratuitous harm!