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Speaker power requirements room size

One of the most confusing topics in home-audio design is figuring out what size amplifier your speakers need. Usually, people make such a decision based on simplistic and sometimes meaningless speaker and amplifier output specifications. Many tend to follow misconceptions about how amps and speakers work. Speaker power handling specifications are usually meaningless. Typically, you just see a "maximum power" rating with no explanation as to how the spec was derived. Is it the maximum continuous level?


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WATCH RELATED VIDEO: Speaker Size vs Room Size: Looking At The Science - all-audio.pro

Understanding Distributed Speaker Systems


Isaacvw enjoys writing about technology in order to help consumers make smart and well-reasoned purchases. There is a whole new set of lingo to learn when shopping for stereo and home theater equipment. Photo by Josh Sorenson on Unsplash. Wattage, watts-per-channel wpc , power, and power-handling are all terms that get thrown around a lot at stereo and home theater stores.

With all the talk of watts and power, one would naturally think they're pretty important. And power is certainly an important measure of how a given receiver or amplifier will perform. But if you don't understand what your salesperson means when she says "power" or "watts," you may well buy something that's less than ideal. This article seeks to explain what watts and power mean in the stereo and home theater world. It also covers how to weigh watts and power against other factors that go into making a good purchase and getting the best value for your money.

The Wikipedia definition of a watt is:. In other words, a watt is a measure of work. In the case of stereo and home theater systems, the work being done is moving the drivers tweeters, mid-range, and woofers back and forth inside your speakers.

The power to do this work is supplied by an amplifier. This amplifier is either inside your receiver, or in its own cabinet. Take a look at the schematic below, showing all the different ways an amplifier can be packaged into a stereo or home theater. You can click on the image to see a larger view. If you've been into a stereo or home theater HT store, you've probably heard that watts matter. The higher in price you go, so go the watts.

The best pieces are sometimes three or even four times more powerful—in terms of watts—than the least expensive gear. So how many watts do you need? Not as many as most of today's equipment manufacturers would have you believe, unfortunately.

It's no conspiracy theory, just business. Many of today's manufacturers are owned by private corporations or private equity funds: dispassionate, financially-minded managers with a beady eye on the bottom-line.

They study customers' willingness to pay for certain packages of features, combine those results with the imperatives of their long-term technology and new-product release schedules, and design products based on these results, and the vagaries of current prices of different metals.

Most of the basics that customers require—such as Dolby 5. So manufacturers use wattage to differentiate the top of the line from the bottom. This has led to the inexorable creep of more and more watts of power packed into receivers, amplifiers, and powered subwoofers.

Meanwhile, workmanship slowly creeps downward, as engineers game the measurements distortion, for example to create the appearance on paper of good sounding gear, for as little cost of goods sold as possible. After all, it's much more difficult to explain why using gold-plated contacts is better than aluminum, and it's even harder to get customers to pay for gold-plated when the next product on the shelf boasts so many more watts for the same price.

So cost-cutting goes largely unnoticed. One of the most common ways is to have different components share parts. For example, if two channels or five channels all share the same amplification components transformers, transistors, etc Another cost-cutting measure is to have many speakers share one crossover, which is one of the reasons for the deluge of all-in-one systems. So the next time you're in a big-box store, or at one of the direct-marketing manufacturer's mall outlets, ask yourself: how do i find out which one of these receivers uses the most gold in their contacts?

Or if not gold, how much to the contacts weigh? You may well find you can't find that information. That should tell you just how powerful the concept of wattage has become, and how little you can find out about the quality of the equipment.

Know this: with any two pieces of equipment at a given price, you are trading watts for quality. Watts either cost money or quality, every time. Obviously, therefore, it's important to know how many watts you need for your room, right? Go into a store, and you're likely to hear something that's true: more wattage in general often results in better sound.

But it would be more correct to say that more wattage of a given quality sounds better in general. There's that pesky quality thing again! You see, not all wattage is created equal.

To see one reason why, let's return to our example of component-sharing. Don't forget to click the image to enlarge it! So is it always bad to share components like transformers?

No, it isn't. But it can be, especially when you consider all the things a good stereo or home theater should be: it should sound good, and be flexible enough to sound good in your next home. Perhaps you think it should be upgradable—I certainly do. Many people want their stereo to work without trouble for twenty years, or not fade, chip, or fall apart.

And these are just a few of the things a good stereo "should" be. Since cost-cutting is everywhere, and your stereo has to be so many things to be a "good stereo," you really never know when some cost-cutting measure is going to jump up and bite you in the buns. That's why I recommend buying the highest quality gear you can afford, and buy only the power you truly need.

I also recommend taking at face value the claim that "high quality" watts from a product such as a Krell, Rotel, Adcom, or Carver amplifier will provide more power than "low-quality" watts from a receiver from a company like Sony, Yamaha, or Onkyo. So how many watts do you need for your stereo or home theater? Well, unfortunately, it depends. Here are the things that affect your power needs the most:. I am a believer in bass, and powered subwoofers. The other two produce the Dolby 5. Major wattage is needed to make good, clean, low bass.

I also like powered subwoofers because they take significant load off of the main speakers and amp, making them far more musical in the mids, low-mids, and highs. Once you recognize that most gear is overpowered, you'll notice something annoying: it's hard to find a quality component without all those unnecessary watts! The top-of-the-line in a big-box store is always jam-packed with wattage. But why pay for it? And you know you are paying for it. What to do? The thing to do is go upscale—not to the top of the line in the big-box store, but to the bottom of the line at the audiophile store.

Here's why remember to click the image to enlarge :. Price and wattage scores are estimates based on same. While stepping up to the "low-end of the high-end," you score a significant upgrade in quality, and have the right amount of power.

But there's a way to get even more value for your dollar: buy used vintage gear. Here's why:. The technology behind the best amplifiers, pre-amplifiers, and, to a lesser extent, speakers, hasn't changed much in fifty years. Sure, technology allows manufacturers to do more with less, but since when has that translated into value for the customer?

No, the reason new equipment comes out year after year is because it must. The new gear has WAY more power than vintage stuff, but we already saw why all those watts don't mean much. There's another reason buying vintage is a good idea: Every year, hundreds of new products come to market.

Some of them will prove to be of poor quality and filled with cost-cutting measures that cut too close for comfort. But some will prove to be elegant compromises of function and cost, and rise over the decades to legendary status. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.

According audio store in Vancouver says that despite of many ups and down, the last 5 years were probably turning point for smart audio technology. The technology of smart audio has adapted itself into such form which makes it available and ready to install in any form.

Thanks for the post though. I observed that Sony D 4. Why it is happening. A stereo that I want to buy says that it has watts.

The seller tells me that is for sound, not electricity. I have a 15 amp circuit breaker, so I am wondering if I a may safely use this system. Thank you. Still the manufactors of theese products keep lying to their customers. Both e. Rotel,Carver and Onkyo The keep selling products with 7xw that are having a power consumption of watts and that is simply impossible.

Example: Under powered, low quality amp trying to drive a power hungry speaker sounds cheap. A quality amp powering efficient speakers sounds better.

Clarity is your answer, if it's on the CD or LP, you should be hearing it through your speakers.. Wattage and Amp sensitivity helps to reproduce all highs and and lows exactly as it should be heard Now sometimes the recording can be of low quality and fool you into thinking it's your equipment, when it was just a low quality recording


Speaker Power and Distance

Isaacvw enjoys writing about technology in order to help consumers make smart and well-reasoned purchases. There is a whole new set of lingo to learn when shopping for stereo and home theater equipment. Photo by Josh Sorenson on Unsplash. Wattage, watts-per-channel wpc , power, and power-handling are all terms that get thrown around a lot at stereo and home theater stores.

making SPEKTOR 2 the perfect choice for larger rooms that still require a compact speaker. The SPEKTOR 2 will be a perfect fit for your Home Cinema.

How Many Watts Is A Good Speaker?


I'm playing folk music in a coffee shop. How much amplifier power do I need? Our rock group will be playing in a seat concert hall. How many watts will we need? I just bought some PA speakers. I want to play them as loud as they can get without blowing them up. Which amplifier should I get? First, define your goal. Do you want to power some loudspeakers so they play as loud as possible without burning out?

How Much Amplifier Power Do I Need?

speaker power requirements room size

Active loudspeakers have built-in amplifiers and require a power source. Loudspeakers are available in two formats: active and passive. Smart home and Bluetooth speakers are always active, as they require power for their additional features. See: How do speakers work? Passive loudspeakers are essentially electrical circuits that can have inductive, capacitive, and resistive elements and follow the rules of impedance.

More attention needs to be paid to the sensitivity rating of a speaker, which we call out as the SPL rating on our speaker specifications.

THX Home Theater Room Size Guide


A loudspeaker or speaker driver , or most frequently just speaker is an electroacoustic transducer , [1] that is, a device that converts an electrical audio signal into a corresponding sound. The speaker driver can be viewed as a linear motor attached to a diaphragm which couples that motor's movement to motion of air, that is, sound. An audio signal, typically from a microphone, recording, or radio broadcast, is amplified electronically to a power level capable of driving that motor in order to reproduce the sound corresponding to the original unamplified electronic signal. This is thus the opposite function to the microphone , and indeed the dynamic speaker driver, by far the most common type, is a linear motor in the same basic configuration as the dynamic microphone which uses such a motor in reverse, as a generator. The dynamic speaker was invented in by Edward W. Kellogg and Chester W.

How Much Power Do My Stereo Speakers Really Need?

You can use this online calculator to determine the value of the required baffle step correction circuit Inductor L bsc and Resistor R bsc. Step One: Determine size of enclosure. I am very satisfied with the product and the service from CT and they have made a life time buyer from me. As you can see, both C ms and V as are the same for the two speakers. Applied to a theoretical design requiring cubic inches, you.

Your choice of speakers should be based on coverage requirements and the size of the Do I really need a 2,watt amplifier to power this speaker?

Beam (Gen 2)

Music adds life to a social event. There are so many Bluetooth speakers on the market to choose from. The issue of wattage confuses many shoppers. Does wattage affect the loudness and clarity of a speaker?

How to properly power your speakers

RELATED VIDEO: Speaker Size Vs Room Size - all-audio.pro

THX can help you optimize your home audio and video experience for any type of home theater system and for any room size. THX can help you optimize audio and video for anywhere from a cozy nook to a fully tricked out home theater. Regardless of room size, your entertainment experience should be the best one possible. Here are some considerations and product suggestions for systems of all sizes and best practices for set-up. Diagrams for illustrative purposes only.

Our low-loss drivers uses a mix of low-mass paper cones with wood fibre reinforcement. The embedded wood fibres give the surface an uneven structure, which dramatically minimizes the resonance of the surface.

What Size Speakers Do I Need for My Room?

Above all, it has a positive effect on our mood. However, if we want to enjoy the music — we need a good sound system. For a good sound system, it is important that the speakers are of good quality and that they meet your needs. Very often we tend to make mistakes in choosing the sound system — because it should be adjusted to the size of the room in which the speakers are located. Therefore, here are 3 tips on how to choose the right speakers in proportion to the size of the room. Buying speakers and setting up the sound system is not always so easy as it seems.

AV Receiver & Amplifier Power Ratings Explained

User Name Stay logged in? Originally Posted by chris SPL drops predictably: 6dB per doubling of distance.




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