Impedance refers to the level of resistance to electricity flow through an electrical device. An ohm is used for this measurement. All appliances, including speakers, will have some amount of electrical impedance. Many speakers have an electric resistance ranging from four to eight ohms.
One can describe impedance as the domain frequency ratio for the voltage to electric current. Generally speaking, impedance is a complex number that has the same units for resistance. It is important to note that Oliver Heaviside was the first to define impedance in 1886.
Impedance in headphones is comparable to electrical resistance, as they both opposed to the electricity flow through a wire. Resistance takes place in DC or direct current cables, while impedance happens in AC or alternating current wires. The frequency carried by an electrical signal can affect impedance, unlike resistance. The Z symbol represents impedance, but complex number depiction is usually more powerful for purposes which involve circuit analysis.
Electrical impedance in headphones is the measure of an opposition that is presented by a circuit to a current with applied voltage. In measurable terms, it’s the combined voltage ratio to the current in AC or alternating current circuit. Whenever a channel is running with DC or direct current, there is no difference between the resistance and impedance.
The impedance concept is introduced in AC circuits since there are two more impeding mechanisms to take into consideration aside from the natural DC circuit resistance. These are the introduction of voltages in the self-induced conductors by the magnetic currents fields and the electrostatic charge induced storage by voltages in between conductors. These effects caused impedance that is collectively called the reactance, and they create the imaginary portion of complex impedance while resistance creates the real part.
Another term that you will come across while you are on this subject is impedance matching. In electronics, this practice refers to the designing of the input impedance for an electrical load or the output for the corresponding signal to minimize the reflections or maximize power transfer from the charge. It’s worth mentioning that the impedance matching concept was developed initially for the electrical engineering field, but it can be applied to other areas where some energy form is transferred between a load and a source. This energy doesn’t have to be electrical.
Impedance mismatch is one more term that you might want to know about. Most professionals believe that this is an adverse occurrence in the software construction and it happens when two mismatched languages form an eclectic mix. This could involve the language for programming that is utilized to make client applications in a database and query language that is used to access and improve a database.
If you are looking for the best cordless headphones in the market today then perhaps you should brace yourself for a ton of results that will come your way during a search. While it is true that you can buy a cordless headphone whether online or by checking out your local gadget stores nearest you, it is still rather important that you should not go into the temptation of impulsive and rush buying. In scouting for the best product for your taste, it is important that you will be able to maximize your search, find the exact type of gadget to your liking, and buy it most affordable or cost-effectively.
In choosing the top one among the best cordless headphones available today, it is highly recommended to take into account some of the most important buying factors and tips, namely:
Always remember that different brands for cordless headphones vary; the design, manufacture and release date also account for price variation and product reliability and performance. The overall impact and your impression upon coming across with a certain headphone brand account for its interface designs, like the quality of the ear pads, lightweight materials, and collapsible headbands. Just make sure that the kind of headphone you will have in the end will give you the most comfortable fit and audio performance with utmost satisfaction.
Relative newcomers to the DJ Headphones market, Danish company AIAIAI (pronounced ‘I-I-I’) have created quite a stir with their minimalistic offering, the TMA-1. It seems like they focused on trying to make the perfect tool for professional DJ’s, testing and developing the product with globe-trotting stars such as A-track, Hudson Mohawke, and Claude von Stroke, just to name a few. The TMA-1’s have been built to compete with the industry standard HD25-ii’s by Sennheiser, used by the vast majority of professional touring DJ’s for the last ten years or so. So are the TMA-1’s in the same league?
Those with an appreciation for design certainly won’t be disappointed by AIAIAI’s packaging for the TMA-1s. The headphones are presented in a foam similar to the acoustic treatment foam used in studios. Underneath is the cable complete with ¼ inch adaptor, a second pair of ear pads made from leather-like material and a rather nice looking soft case sporting an oversized heavy duty zipper and a yellow mesh lining.
AIAIAI’s TMA-1’s design is lightweight, simple and deceivingly functional. A flexible headband connects the two ‘on ear’ cups with coiled cables on the show between them. The minimalist design and matt rubber type finish give them almost a futuristic look, in fact, they really wouldn’t look out of place in one of the latest Batman movies. These headphones won’t attract anyone who likes shiny, flashy, look at me stylings in their DJ equipment. However, they should go down quite nicely with anyone into the understated European design. And any wannabe superheroes.
The headband is made from a nylon material. The flexible properties of this material allow the headphones to be twisted and-and stretched considerably without any damage done to the integrity to the headband or original shape. This has many benefits. Not only is the TMA-1’s headband very durable, able to withstand a good stepping on, but its ability to be twisted also makes up for the fact that neither of the cups has a ‘swivel’ type function. Usually, Headphones without this feature are unable to withstand the constant twisting caused by placing one of the ear cups behind the ear and headbands will often snap over time, but like the HD25-ii’s, the flexible headband stops this from happening. Consequently, the TMA-1’s do not fold down like other DJ headphones so do take up more room in your DJ bag.
The ear cups themselves are made from the same nylon material with a choice of two earpads, one made from a synthetic material, the other from leather. The ear pads detach easily when needed and have a reliable mechanism for staying in place. The cups are connected by a cable that runs through the headband, and that is exposed above each driver. The exposed cable is thick and tuff, coiled to allow extension when extending the headband for larger heads. This process is made accessible by small notch type holes at the ends of the headband. There is also some ‘play’ in the join between cup and band that allows the cup to pivot slightly, which allows easy one ear monitoring.
The overall fit of the headphones is good, both for one and two ear monitoring. The TMA-1s don’t have as much padding as some other DJ headphones on the market so aren’t the most comfortable when it comes to hours of usage but should do most people just fine. There is a right amount of tension that keeps headphones on the head without being too much over time, and even with the moderate head movement, they should stay secure. So unless you’re one of those crazy dubstep ‘1000 moves a minute’ type of DJ’s in the booth, you should be just fine.
The TMA-1’s have an impedance of 32 ohms and a sensitivity of 103db. In real person speak, there f*ing loud! The AIAIAI’s are one of the strongest pairs of DJ cans available giving you clarity at every level and even on mixers with cheap headphones output, you’ll be sure to get good volume. The lows and mids are warm, punchy bass at a level that isn’t over the top and lots of clarity in the mid frequencies. The highs are dimmer than on a lot of phones; this has been done on purpose to you allow monitoring for longer without damaging your ears. Compared to the Sennheiser HD-25-ii’s for instance, the sound is slightly louder, with more a bit more kick and a less high hat.
If the TMA-1’s have a weakness, it’s in their noise reduction capabilities. The on-ear cups fail to block as much noise as other similar headphones that clamp stronger to the head but having said that, its not the end of the world and loudness of the model makes it a negligible factor.
As mentioned previously, the headphones ships with two pairs of ear pads, synthetic and protein leather. Its advisable to test both as the different pads both give different sounds. The pad locking system is a clever one, not unlike the type most speaker grills use. Why has no one has thought of this before? It makes changing of replacing your pads so easy compared to other replaceable pads on the market. The supplied coiled cable has a unique locking mechanism at the headphone end rather than screwing in. This is great as it means that it will fit any cable with a 1/8inch jack, not that you would want to, as the cable supplied is both lightweight and durable. At the mixer end, there is an L shaped 1/4inch jack, designed to make harder to detach from your console accidentally. The AIAIAI’s are also available to buy ‘with a microphone.’ This gives you a second, straight cable with an iPhone remote for use with any apple products you may have. The ‘Beatport edition’ comes with $5 Beatport voucher and has green colored cables, whereas the ‘fools gold’ version has yep you guessed it, gold-colored wires. Currently, ear pads, cables, and soft bag replacements are available. Click here to see price, ratings and reviews on amazon.
|Frequency Range (Hz)||20-20,000|
|Max Input (mW)||Unknown|
|Cable Type||Coiled, removable|
|Cable length (m)||1.5|
|Also included||Soft pouch and 1/4inch adapter|
Whether you’re still looking for your first DJ setup or touring the world on a regular basis, getting the best DJ headphones is an important task. So, what are the things to look for? How much will you need to spend? What does impedance mean?
In today’s world of Jargon, celebrity endorsement and marketing hype, it can be hard to cut through the bullsh*t to get the information you need.
This is where this site comes in. We have some tools plus extensive product reviews to help you make an informed decision, choosing the right headphones for your needs to fit your wallet.
Below is an interactive chart of some of the headphones currently available (we are adding to it all the time). You can use this to narrow down the search before you look at the top contenders more closely. If you’re new to DJ’ing, it might be worth checking out our beginner’s guide; this will tell you what makes DJ headphones different to regular headphones and what to look out for. We also have a detailed review section where you can get to know the best DJ headphones before you buy, with pictures and full specs it’s a great resource. Finally, we also have a glossary where you can check out any terms you haven’t heard before or don’t quite understand.
Clicking at the top of any of the column will sort the table by that column. These are:
Below are 3 of best DJ Headphones available right now on the market.
The HD25′s have been the top choice for pro DJs for well over 10years now. Excellent sound quality and a durable construction have made these ‘on ear’ Sennheisers the ‘industry standard’ in DJ headphones, similar to the Technics 1210s turntables in the 1990s and more recently, the Pioneer DJM Series. Made in Ireland, replacement parts are available for every single element of the Headphones, and while not cheap, they do ensure the HD25s will last.
Read a full review for the Sennheiser HD25-1ii here
Designed in Denmark and tested by 25 international touring DJs, the TMA-1s are the new kid on the scene. These pair of cans are comparable in every way to the top DJ headphones money can buy while often half the price. Anti ear fatigue sound and minimalistic looks are two great features of these hard-wearing headphones.
Read a full review for the AIAIAI TMA-1 here
At the high end of the DJ headphones market, seems certain don’t come cheap. However, these looks are matched by high-quality sound and some great design features. An intelligent cup swivel mechanism and duel ‘daisy chaining’ inputs add to a solid construction and are combined with some well thought out peripherals. Designed by Latin superstar DJ David Guetta.