Speaker box problems
A blown speaker is a huge annoyance. It starts with noticing the sound and wondering if you're imagining it until the problem gets worse. Then you wonder if it's too late to fix it. I'm going to explain what it sounds like, why it happens, how to test for it, and how to fix it if possible
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Content:
- OPPO Phone's Speaker Has No Sound
- Blown Speaker: Sounds, Symptoms, & Fixes (Plus Guidance)
- What to Do When the Subwoofer Isn't Working Properly
- The Aperion Guide to Troubleshooting Common Speaker Problems
- 5 Common Audio System Problems and Their Solutions
- Fix sound problems in Windows 10
- Speaker Repair
- Loudspeaker enclosure
- Loudspeaker Blow-Out: Why It Happens & How To Avoid/Fix It
OPPO Phone's Speaker Has No Sound
Understanding the reasons behind speaker blow-out and the potential fixes will help us to comprehend the occurrence of blow-out and what to do about it. Speakers generally blow out when too much electrical power is applied. Avoid blow-out by keeping speakers at safe listening levels and in safe locations.
Replacing the blown parts is typically the only solution to fix blown speakers. Speakers affected by blow-out are known as blown or blown-out speakers. Note that these symptoms do not necessarily mean a speaker is blown but are commonly associated with speaker blow-out.
Speaker blow-out most typically happens when the speaker experiences too much signal for too long. The audio signals that driver speakers are alternative currents with amplitudes measured in AC voltage. The direction and amplitude of the electrical current are translated into speaker movement that produces sound.
A byproduct of this electrical current is the dissipation of heat from the voice coil. In moving-coil speaker drivers which are by far the most common , this element is the voice coil. Too much heat will effectively melt the coil into a single mass or even weld the coil to the magnet. This renders the speaker incapable of accurately reproducing the audio signal or producing sound at all in the worst cases.
Speaker drivers can sometimes get torn or stretched when a high-level audio signal is applied. The speaker driver will have a limited range of motion and may stretch or tear if pushed too far. Rather, the first thing to happen will be audible distortion as the driver reaches its limits of motion and begins to act non-linearly.
However, the speaker could certainly get damaged due to physical trauma. Any tearing or over-stretching of the spider suspension within the speaker driver will remove the voice coil movement restriction in the X and Y-axes. This type of blow-out leads to significant audible distortion. The material of older speakers may degrade to a point where it causes severe degradation to the speaker performance. We see this often with the foam-type surrounds and suspensions of older speaker models, but it can happen with other materials that suffer erosion due to normal wear and tear.
Some active loudspeakers and studio monitors will have electrical fuses as a way to protect from speaker blow-out. However, if these fuses blow, the speaker cannot be powered on and may seem blown out. Replacing this fuse could being the speaker back to life while maintaining the protection from high-amplitude audio signals. It is normal for speakers to distort when their amplifiers are overloaded. Still, if significant distortion is occurring at reasonable listening levels, it could very well mean that the speaker is blown in one way or another.
Many speakers are designed with multiple drivers and a crossover network that effectively parses out the appropriate frequency bands to those drivers. If any driver gets blown in a multi-driver speaker, the frequency response of that speaker will be severely altered. Therefore, rattling, popping and crackling may be a sign of speaker blow-out though not necessarily.
This can be considered blow-out. Hopefully, the speaker has a fuse that will protect it from damage. If so, replacing the fuse may allow the active speaker to be turned on once again. We can test whether a speaker is functioning or not by attaching its electrical leads directly to a DC source. Carefully take the speaker apart and connect one lead wire to one terminal of the 9V battery. Then take the other lead wire and touch it to the other battery terminal.
The speaker should produce a popping sound and be pushed outward or inward depending on which terminals were attached to which leads. If the lead wires are held on the terminals, the speaker should stay pushed inward or outward. Tapping the second lead wire should cause a quick pop as the speaker driver moves and returns to rest position. Switching the lead wire and terminal connections should cause speaker movement in the opposite direction. If no noise of speaker movement happens during the battery connection, the speaker is blown, and either the conductor voice coil or the suspension must be replaced.
Another test can be conducted by measuring the impedance across the conductive voice coil with a multi-meter. Cheap speakers are often made with less-durable material that will be more easily damaged by regular wear-and-tear and overloading. Older vintage speakers, like other highly sought-after vintage audio equipment, can sound incredible.
However, some materials in older speakers may require replacement due to corrosion and disintegration as a result of their ageing. Perhaps more important than the speaker material is the matching of the speaker to a proper amplifier. This is largely taken care of with active speakers. More care must be taken with passive speakers to connect them to appropriate amplifiers. Again, sending too much signal to a speaker can blow it out.
This can easily happen if the speaker and amp are mismatched. We intuitively know that an amp with a higher output than the speaker can handle can blow the speaker out. Of course, that is not to say that the speaker and amp must be perfectly matched every time.
Rather, it is to say that the speaker should only be driven at safe signal amplitudes. Yet another way to avoid blow-out is to keep the speakers protected. This is more so for the speakers that live life on the road guitar cabinets, PA speakers, etc.
Handling the speakers with care is another great idea if speaker longevity is a concern. First things first, if you believe your speaker is blown, test it as soon as possible. Next, I should state that there are some instances where replacing the speaker entirely is the best option.
This could be the case with cheap speakers. It is also the case when the speaker has been completely blown beyond simple repair. This component suffers a lot of mechanical stress throughout the life of the speaker and is often the first component to disintegrate due to normal wear and tear.
If the surround has come apart, the repair is relatively easy. Get yourself a repair kit and a replacement surround. Speaker surrounds, unlike the more specific components, are more universal and are available in various common sizes.
A re-coning is in order. Re-coning refers to the replacement of all the moving parts that constitute the speaker cone assembly, including the voice coil and suspension spider and surround. Cut out the cone, coil, coil former and spider assemblies of the blown speaker; remove any adhesive remains and burned materials, and install the replacement cone assembly.
Look for re-coning kits and replacement parts. Note that many lower-end speakers will not be worth re-coning, and many will not even have the replacement parts necessary for a proper re-coning. Note that because the speaker driver works along with its enclosure, a matched driver is required to properly re-cone the blown speaker. Even a driver with better specifications, on paper, may sound worse than the original when put into the same enclosure.
Though perhaps not true blow-out, loose wires and blown fuses must be fixed in order for the speaker to perform properly. Replacing a fuse, if the speaker has one, is fairly simple. Remove the burned fuse from the fuse box and replace it with a fresh one.
Many active speakers and monitors come with an extra fuse located in a pocket near the power socket. Re-soldering the connections may also be required.
Why do speakers distort at high levels? There are two main reasons why a loudspeaker would distort at high levels. The most common is that the audio source, itself, is distorted. However, speakers can also distort if their drivers are pushed to the extremes of their designed motion, in which case they behave non-linearly and produce distorted sound. What causes speakers to pop and crackle, and how do we fix it?
Speaker popping and crackling are caused by interrupted electrical current audio signals or, in other words, a loose or dirty connection. Choosing the right PA speakers for your applications and budget can be a challenging task. Check it out for help in determining your next PA speaker purchase.
With so many loudspeakers on the market, purchasing the best speaker s for your applications can be rather daunting. Check it out for help in determining your next speaker acquisition. Determining the perfect pair of studio monitors for your studio can make for a difficult choice. Check it out for help choosing the best studio monitors for your setup. He's an audio engineer by trade and works on contract in his home country of Canada.
When not blogging on MNM, he's likely hiking outdoors and blogging at Hikers' Movement hikersmovement. Check out his Pond5 and AudioJungle accounts. Boiling water is usually associated with cooking or blanching. You will probably not hear the phrase "boiling strings" very often in everyday lingo. Why do guitarists and bassists boil their If you've been a guitarist or bassist for a long time, the chances are that you've restrung your guitar or bass numerous times.
This means that you may have a lot of string sets saved somewhere if Skip to content. Continue Reading.
Blown Speaker: Sounds, Symptoms, & Fixes (Plus Guidance)
Bluetooth speakers are more popular than ever, and pairing your phone, tablet, or other device to your speaker should be easy and stress-free. While this is usually the case, some factors can affect pairing and cause it to be more difficult than it needs to be. If you're having difficulty pairing your device to a Bluetooth speaker, you've arrived at the right place! This article reviews some of the most common issues when pairing a device to a Bluetooth speaker and shows you how to overcome them. Either your phone, or your speaker thinks it is already paired to something. Bluetooth devices often try to auto-pair to the closest or strongest available signal.
What to Do When the Subwoofer Isn't Working Properly
After a while, these challenges fall into a few different categories that can usually be quickly diagnosed and resolved. We figured we would share a few of the more common complications with you, in hopes that reading our guide will help you find an easy and painless solution, should one of the following scenarios happen to you. The subwoofers we sell, along with most you can find out there in the market, are powered subs. A powered sub has its own amplifier built right into the cabinet. Most Common Solution: You can eliminate the hum by lifting the ground of your sub and using a three prong to two prong plug adapter. But that removes the ground protection on the outlet, so of course we would NEVER suggest such a reckless and extremely easy fix. Instead, you can isolate the source of the loop by unplugging your components one by one.
The Aperion Guide to Troubleshooting Common Speaker Problems
Understanding the reasons behind speaker blow-out and the potential fixes will help us to comprehend the occurrence of blow-out and what to do about it. Speakers generally blow out when too much electrical power is applied. Avoid blow-out by keeping speakers at safe listening levels and in safe locations. Replacing the blown parts is typically the only solution to fix blown speakers.
5 Common Audio System Problems and Their Solutions
A loudspeaker enclosure or loudspeaker cabinet is an enclosure often rectangular box-shaped in which speaker drivers e. Enclosures may range in design from simple, homemade DIY rectangular particleboard boxes to very complex, expensive computer-designed hi-fi cabinets that incorporate composite materials, internal baffles, horns, bass reflex ports and acoustic insulation. Loudspeaker enclosures range in size from small "bookshelf" speaker cabinets with 4" woofers and small tweeters designed for listening to music with a hi-fi system in a private home to huge, heavy subwoofer enclosures with multiple 18" or even 21" speakers in huge enclosures which are designed for use in stadium concert sound reinforcement systems for rock music concerts. The primary role of the enclosure is to prevent sound waves generated by the rearward-facing surface of the diaphragm of an open speaker driver interacting with sound waves generated at the front of the speaker driver. Because the forward- and rearward-generated sounds are out of phase with each other, any interaction between the two in the listening space creates a distortion of the original signal as it was intended to be reproduced.
Fix sound problems in Windows 10
You may be playing through a speaker enclosure that lacks flat response. The guitar that you play may benefit from a mid-range hump. But many guitars and most other instruments speak best through flat response set-ups. So, you may be using your controls to compensate for inherent problems rather than to start from a neutral point and create your ideal sound. While playing you step in and out of the ideal zone for hearing your guitar the way that you prefer. It is likely your point source speakers are not projecting the same sound all around. Your standard directional speaker is only allowing your ideal tone to project within a limited range of width on stage and beyond.
Speaker Repair
Last Updated: May 13, Tested. This article was written by Jack Lloyd. He has over two years of experience writing and editing technology-related articles. He is technology enthusiast and an English teacher.
Loudspeaker enclosure
RELATED VIDEO: WHATS INSIDE? - FREE SPEAKERS!Published On : August 5, Most audio system problems are a result of improper, defective, or wrongly connected cables. Some problems also arise due to wrong equipment use or improper maintenance. The world of audio can seem simple, but it can get quite complicated and hard to understand, especially to those who are not AV enthusiasts. Audio systems can have a lot of components, wires, settings, and standards, adding to the confusion.
Loudspeaker Blow-Out: Why It Happens & How To Avoid/Fix It
There's nothing more inconvenient than having a phone with a speaker that has no sound when playing games, music, videos and when talking on the phone in speaker mode. You have adjusted the call and media volume, but nothing seems to get the phone speaker working the way it should. There are different troubleshooting techniques you can try to restore the speaker volume such as adjusting app sound settings, disabling Do Not Disturb, and disconnecting external speakers or headphones. Read on and try these troubleshooting steps on your OPPO phone. There could be many reasons that are causing your OPPO smartphone's speaker to stop working. It could be outdated software or a damaged speaker.
Soundbars were supposed to make TV-watching better and easier. The idea was that, as TVs became slimmer, with less room for decent internal speakers, soundbars could offer better sound without making you deal with the complexity of wiring up a half-dozen speakers and navigating the often-confusing menus of an AV receiver. We also consulted a couple of soundbar makers to find out what the most common setup mistakes are and how to fix them. The root of many of these problems lies in the HDMI technology used for most soundbar connections.
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