3 No Fail Steps On How To Test Amplifier Output With Multimeter

0

Multitester or multimeters are electronic devices that are used to measure numerous key components of an electrical circuit. A standard item in a professional electrician’s tool kit as well as a hobbyist’s arsenal, the multimeter can easily be purchased from electronic stores.

According to my research, a multimeter can measure currents, voltage, and resistance. It is also very useful in determining whether there is a problem with your amplifier. Here is a list of the common problems to look out for

  • Amplifier output is distorted
  • Amplifier does not switch on
  • Amplifier switches on but has zero output
  • Amplifier switches on and off on its own
  • Amplifier goes on safety or protection mode

Personally, I have found it initially the idea of using a multimeter to test my amplifier output as a complicated task. Curiosity however got the best of me, eventually I did some reading up and have found that armed with the proper tools and some patience, learning how to test amplifier output with multimeter is in fact a simple enough activity.

Things you need

  • Multimeter
  • Amplifier
  • Some patience

amplifier

The speaker setup I have is fairly straightforward, if you happen to be one of those people who have at least eight speakers then it is best to be armed with a lot of patience. The whole task although doable is time-consuming since it likely needed for you to test each unit to find any faults. Keep in mind that if the main component lights up and works, the issue may very well be correlated with the external amps. Now let’s start!

Step 1: Configuring the Multimeter

Start by configuring the multimeter. As a noob I was a little worried, I would have trouble with this. I was pretty relieved by how easy it was to do. The COM as it is labeled is the common socket, this is where the black probe must go into. The socket labeled A or amperage is where the red probe hooks into.

Sometimes there are two varying sockets for amperage, one is for his amperage while the other one is a bit more sensitive. As a rule of thumb, users can try out the highest rating socket first. With the central dial on the device, turn to amperage setting that corresponds with the socket. If for example the circuit is estimated at 5 amps, instead of selecting 1 amp, go for the 10 amp setting. A setting that is too low can actually overload a multimeter.

Step 2: Amplifier Test

Because each manufacturer will design their amp a little differently from the others, checking the manual is a must. There should be a diagram for wiring that tells users which wires are used for testing along with the characteristics you should expect from a functioning amp.

There are amplifiers with several plugs, if for some reason the diagram does not specifically state which is the main one,  for the most part it is standard to have the main amp is labeled 12V+.

Step 3: Multimeter Reading

Using a series configuration, place the multimeter leads into the circuit. The idea is to have an electricity flow that is redirected in order to obtain an accurate multimeter reading. The currents should move towards the red lead and then exit through the black one.

Note the amperage amount that is displayed on our multimeter. It is always best to put the selected current range into consideration when looking at the reading number. This means, that the number “10,00” may show only 0.01 amps on one setting while indicating a 10 amps reading on another if the multimeter is set to a higher milliamps radius.

4 Common Problems And Solutions On How To Make Headphones Not Hurt Your Ear

0

I’ve always had a love-hate relationship with earbuds since my ear canals are apparently not big enough to accommodate them.

So in an effort to spare by the inner ear, I often switch between using buds and headphones thinking this would solve my discomfort. But, alas! I’m sure anyone who has used headphones will agree that these seemingly innocent and comfortable looking pair of auditory accessories can actually turn into brain squeezing torture devices. Especially when they used for an extended period of time.

Figuring out what causes the discomfort can be done by taking a closer look at each of the problems experienced while using it.

Uncomfortable headphones need not be the norm when there are reliable resolutions on how to make headphones not hurt your ear. I’ve got a rundown of some of the most irksome issues I’ve dealt with since using over the ear headphones.

Problem #1 Too Tight Bands

Over the ear headphones are sometimes similar to brand new sneakers that need to be broken in. Instead of having to endure wearing them until they stretch to accommodate the size of my head, I found that stretching them overnight has made them more comfortable.

Solution: To do this, the trick is to simply use the box, book, jar, or any item that is roughly the same size as your head or maybe a teeny bit wider. Position the headphones on it to give it a nice stretch. Try to be as gentle as possible when attempting this trick. Repeat several times if the first attempt still feels too snug.

Problem #2 Headphones that Dig into the Skin

Usually, it fits more comfortably after several uses with the band magically taking in the shape of your head. For the most part, I have found that this is often the scenario whenever I opt for high-end headphones. It sounds cliche but you definitely get what you pay for.

Solution: After settling with cheap pairs for so many years, I saved up and got myself a good quality brand that boasts of luxurious comfort. And it did not disappoint! Compared to inexpensive models, the premium model had a band that was lined with memory foam.

The lack of padding not just feels tight on my head but it actually felt like the hard plastic was slowly digging into my skin. Of course, it is not necessary to simply select the priciest model out there. It does pay to try on a few designs until you are able to find one that offers ample cushioning.

Problem #3 Warm Sweaty Ears

There are numerous headphones that are made of pads with plastic materials. In some instances, they are even covered with faux leather making them even more uncomfortable to use.

Solution: To avoid irritation, picking headphones that are covered with breathable, soft fabric is always a better solution. There are lots of headphone models that allow users to replace the built-in pads with other options. Check to see if our model supports replaceable or removable pads. Bear in mind that breathable fabrics will introduce more air into the device which can reduce the noise cancellation functionality of your headpiece.

Problem #4 Drivers that Press Against Ears

Sometimes it is not the clamping pressure that causes ear discomfort but the shallow cups. With ear shapes and sizes varying, some ears tend to stick out more and tend to get cramped when shallow cups press against it.

Solution: Aside from the obvious of locating models that nestle your ears better, the next best option to create cups that are deeper. Be mindful that this quick fix could affect the quality of the audio output. Increase the thickness by adding foam or similar types of padding material around the cups and under the pads. This hack should provide more space inside the cup to comfortably accommodate the ears.

4 Fastest Steps On How To Clean Headset Pads

0

Headsets have always been the perfect accessory whenever I want to fully immerse myself in what I am listening to. Since they provide full ear coverage, I find myself being able to hear audio very clearly.

Like many users, I am ashamed to admit that I have neglected to properly care for my headphones. It was only until I started experiencing some discomfort while using them and when I realized I was no longer getting the best output that I began to take more notice on how to clean headset pads.

One quick glance and I knew that my headset was not only dirty but it was also starting to smell. The long hours of usage and close contact of the fabric covering the pads have managed to absorb dirt, grime, and sweat! It was already quite disgusting hence a quick clean up was in order. After some research, this is what I found to be the most effective and efficient means to clean up my set.

beats

Step 1

Begin by wiping down the external pieces. Use a dry clean piece of cloth to go over surfaces. This practice should be one right after every use. For best results, it’s advisable to select microfibre cloth to avoid causing any abrasions on surfaces. Dry wiping picks up any dust as well as any moisture from sweat absorbed by the cushions and pads.

Step 2

I opted for a piece of damp cloth that I had dipped in warm soapy water. It is important to note that the cloth must not be soaking wet. Proceed by wiping the pads gently, do not rub or press hard on the cushions. Leave them to dry. Some headset models allow users to pop off the pads, you should check with your manufacturer website if this is an option.

If you find yourself reluctant to sanitize with soapy water, another option is to simply use hydrogen peroxide a common disinfectant used by those in the medical profession. If it’s good for them, then it must be good for us as well, right? Of course, it doesn’t have to be said that it is always best to heed the manufacturer’s suggestions and warnings. Better safe than sorry after all.

Step 3

Use a clean q-tip to clean up nooks and crannies. Be careful when reaching into holes and jacks. I have found it easier to use swabs for makeup removal since they are designed to have a slimmer and pointier head than the typical bud.

As much as possible, avoid introducing moisture into any ports on your headset. Aside from a q-tip, I have found that a clean soft-bristled toothbrush is also a good way to remove stubborn build-up.

Step 4

Since I use a headset with leather coating, it will take time to occasionally condition it. To do this, apply a nice even layer of your choice leather conditioner. These are easily found being sold along with leather goods.

Conditioning needs only to be done twice annually, or depending on the weather condition in your area. Always use a small amount when working the conditioner in. Remember that it is easier to add if needed rather than to take away when you’ve placed too much. This is a lesson I had to learn the hard way. Massage the solution all over the leather components, allow it to be absorbed, leave to dry before you store.

As a final note, headset users would benefit from regularly replacing pads. Even with proper care and storage, regular wear and tear will still occur. Cleaning them not only ensures quality audio output, it also results to better hygiene.