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Is Your Speaker Running Out of Power?

  • dyewarawe
  • Feb 21, 2022
  • 5 min read


The sound of a blown speaker is rather obvious - a blurry, distorted, and crunchy sound that may or may not be duplicating the signal you are passing through it, or it may be creating no sound at all, depending on the situation. There are a number of conditions that might result in a speaker not functioning properly. When a speaker sustains physical damage to the cone or even the voice coil, the speaker must be replaced. In some cases, the harm is immediately apparent. In other circumstances, the speaker may seem to be in good condition, but the distortion may be so subtle that you may question whether your amplifier is the source of the problem. In this post, we'll discuss how to evaluate whether the problem is caused by your speaker or your amplifier and how to resolve it. In the audio industry, the phrase "blown" refers to a speaker that is not functioning properly. A scratchy signal being reproduced at a lesser level by the speaker, or no sound coming through the speaker, might be the cause. By doing one or more of the tests listed below, you may determine whether your fix my speaker.

the Following Tests Are Used to Determine if a Speaker Is Blown: Replace the speaker with one that is well-known to be effective. This is a simple and effective method of immediately determining whether or not your amplifier is operational and whether or not your old speaker is operational. If you have a known-good replacement speaker, just swap out your old speaker with the known-good replacement speaker. If you are receiving nice, clear sound, the fault is most likely with your previous speaker. The following test will provide you with reliable answers if you're hearing strange noises from your amplifier and aren't sure if the issue is with your speaker or with your amp. It should be noted, however, that it is conceivable for a speaker to blow as a result of an amplifier problem. For example, in a solid state amplifier where the power transistors are directly linked to the speaker, defective transistors may cause excessive current to be sent to the speakers, resulting in the voice coil being blown out. If you have a tube amplifier, this is also conceivable, but the output transformer would most likely explode first.) In the event that you have cause to suspect the amplifier is failing — especially if it smells like it is burning — you should explore this before attempting to use another speaker. Additionally, it is extremely conceivable that the replacement speaker may fail as well. So, before you go out and buy a new speaker, consider what occurred to the amplifier before you were certain that the speaker was faulty. Avoid using a new speaker until you have addressed the apparent concerns with the amplifier, such as a popping sound, a burned smell, and smoke pouring from the amp. Is it necessary to do this test using a speaker that has the same impedance as the one being tested? Yes, if you have access to a speaker with the same impedance as your amplifier, it is a good idea to utilise it. A tiny impedance mismatch, on the other hand, should be acceptable, especially if you are just running a quick test. More information on speaker impedance can be found here, while information on Wurlitzer electronic piano speakers can be found here. Test your questionable speaker with an amplifier that has been shown to operate. If you don't have another decent speaker (or if your amplifier is in dubious condition and you don't want to risk connecting your known good speaker to it), you may connect the speaker in issue to a functional amplifier to solve the problem. If this configuration continues to provide the same bad speaker sound, it is reasonable to conclude that the speaker has failed completely. Examine the speaker's physical appearance. Physical damage to a speaker caused by a blown speaker may be seen. Remove the speaker from the amplifier or instrument and look at the cone to see if it needs to be replaced. There should be no rips or tears in the fabric. Damage to the cone will prevent it from replicating your signal correctly, and it will often result in unsightly distortion as a consequence of this. Examine the speaker's physical appearance. Damage to a blown speaker may be heard when the speaker is subjected to some mechanical movement. It should produce a solid drum-like sound if you lightly tap on the speaker cone with your finger. If you hear a rattling sound (such as that of a loose snare drum), this is an indication that your speaker is defective. You should also hear nearly nothing if you gently press on the speaker cone with your finger (being cautious not to pierce the cone with your finger or push it any farther than 5 millimetres). A scraping or crushing sound will be produced by blown speakers whenever they are moved. This is an indication of a defective voice coil, and it will almost certainly need to be replaced as a result of this.


What Should I Do if I Have a Speaker That Has Blown? Fortunately, most speakers are not prohibitively costly, and blowing them is a rather infrequent occurrence. It is recommended that the speaker be replaced. Although it may be desirable to repair a costly speaker, such as one manufactured by JBL or a vintage Jensen, bear in mind that if you are employing the services of a skilled technician, you will be responsible for both the component and their time. If you want to replace your speaker, be certain that it has the suitable impedance for the amplifier and that it is rated at or above the wattage of the amplifier before purchasing it. It's not uncommon for amplifier makers to specify a speaker with almost double the power of the amplifier's rated power. A 30-watt amplifier may be paired with a speaker rated at 50 or greater watts in order to ensure that the speaker is capable of handling the power that the amplifier is delivering through it. A replacement is nearly always a smart option, and you can keep your original until you make a decision on whether or not you want to repair it. If you decide you don't want the speaker, you could sell it on eBay for a tiny portion of its "functioning" price, since someone else could be interested in it for components or as a spare. Make careful to indicate that the speaker has been blown and to charge a reasonable amount for it.

 
 
 

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