Posts Tagged ‘Home Theater Receivers’

The Advantages Of Home Theater Receiver

February 8th, 2010



How does the home theater system works? The soul of the home theater is the home theater receiver. It is probably the best method to centralize your system. They aren’t too expensive. They are usually moderately priced. It actually serves many purposes like it powers your speakers; you can also switch DVD players easily with this. It connects all the output and input of your system. They come in various models and the choice will depend on your requirements. The home theater receivers do decoding which allows you to watch your favorite shows and movies. They are also used as radio tuner. The receiver is known by various names like A/V receiver, Dolby Digital receiver, surround receiver etc.

The working of home theater receiver

The receiver performs a number of audio signal processing functions like bass management, digital audio decoding and simulated soundfields. The home theater receiver has three components. These are the tuner, preamp and a multi channel amplifier. These three components work together for the proper functioning of the receiver. Each one serves some specific functions. The function of the tuner is to receive FM/AM, HD and internet radio. It also receives Sirius satellite radio. You can choose the source of your AV. It can be a DVD player or a CD. iPod is also a AV source. So this function of choosing the audio/video source is provided by the preamp. The preamp can also process the incoming signals and send them to various channels. Finally, the surround sound signals are distributed by the amplifier. This multi channels amplifies powers up the speakers. Amplification is a process by which a low signal is converted in to a high one. More amplification results in better and louder sound. Basically, the receiver takes the signals from the source, performs the required information and amplifies it. This is how it works.

Choose your receiver carefully

You have to keep certain things in your mind while buying home theater receiver. A power listing is always given with these receivers. The rating mentions the watts per channel. So always take notice of this rating when you are buying the receiver. A higher rating does not imply that the receiver is good. The watts required will depend on the type of receiver you are opting for. The distortion should also be good. Distortion measures the level of amplification of sound and music.

A good receiver should have low distortion level. A low distortion level means that there will be low noise even when the receiver is used at high volume. So you will have no disturbances while you are watching your favorite shows. The distortion level should be always taken into consideration. Go for a receiver which has low distortion level as well as low watt.

A good receiver is one which can maintain full power output for a long time and that too continuously. Receivers should work for a considerable period of time. Buy a receiver which fulfils this criterion even if it is low in watts. RMS measure is something which tells you about the watt output. This will tell you the level of volume that can be tolerated with a particular output. Do not be interested in the maximum power the receiver can generate. Instead, one should always look out for the continuous power. RMS stands for root mean square and it is a measure of continuous power.

There are several things which you must consider before you finally buy the home theater receiver. As mentioned earlier it should have a low distortion level. It should also have a low power rating. In addition to all this, the receiver should be compatible enough with your home theater. It should be easy to use and easy to connect. You must also not compromise on sound quality which should be excellent. Thus, you can get the best receiver for yourself only when you take into account all these things. You have to choose a model which fulfils all your needs.

By: David Faulkner

Home Theater Control – It’s The Remote, Stupid!

December 10th, 2009



It’s the one piece of equipment that can really make or break your home theater system; the remote control. It’s no good to have the latest and greatest gear and world’s biggest DVD collection if you can’t figure out how to use anything. True home theater nirvana is a fantastic performing system anyone can use with a single button press.

Many of today’s home theater receivers and surround processors come with a “smart” remote control. Some of these are actually pretty good too. B&K and Denon come to mind. If you know what you are doing, you can get one of these babies programmed to orchestrate your entire system pretty well. If you haven’t the time or inclination for such a project yourself, hire a professional installer to bring everything together for you. A great place to start is CEDIA (Custom Electronics Design and Installation Association). They have member firms in every state, and many foreign countries, that are experts in making complex home theaters easy to use.

Remote controls come in several flavors. The one most people are familiar with comes with almost any electronic component you buy these days. For the most part it does a pretty good job at making the particular component do what you want. Some of these even let you control other components, especially if they are from the same manufacturer. This way, for example, you can use your TV remote to also control your VCR or DVD player.

The next rung up the remote control ladder is the so called “smart remote”. This type of remote is able to control multiple pieces of equipment from different manufacturers. Some can control up to 8 or 10 different components. They are usually set to control each piece of equipment by entering a 3 or 4 digit code. Some of these units will learn control functions from other remote controls. This is helpful if the unit you need to control is not in your remote control’s internal database. You usually accomplish the learning by entering a “learn” mode on the smart remote, pointing the “teaching” remote at the smart remote and pressing the desired button. Viola! Your smart remote has learned the command from the original remote control.

If you want things even easier than using just one remote to control everything, you need a remote that does macros. These are command sequences initiated by pressing one button. For example, you want to watch a DVD. Typically you would have to turn on your TV, DVD player and surround receiver. Then you would have to switch your TV to the component input and your receiver to the DVD input. With a macro capable remote, this sequence is programmed into the remote. The remote then plays back all the commands in the appropriate order so you don’t have to.

If you want a remote that controls everything, you need a remote with a lot of different buttons. This can make the remote a little intimidating. Sure it can do almost anything but make toast, but where to start? If you have the budget, now is the time to get a touch screen remote. With a touch screen, you typically have only a few actual buttons. These are typically the most used functions such as volume up / down, channel up / down, mute and possibly cursor functions.

All other buttons are just icons on a screen that you touch to initiate the desired command. The beauty of this approach is that you only need to have just a few icons on the screen at any one time. This really cuts down on button clutter and confusion. The icons can be graphical representations of the command, which makes everything very intuitive. For example, you can have an “NBC” logo you touch to go to the local NBC station.

Touchscreen remotes come in four basic variations. First there is the choice of color or grayscale. Color looks better and more information can be conveyed more quickly. Grayscale units are much less expensive. Next, the communication with the remote can be one way or two way. Two way communication allows status to be updated on the remote itself. For example you can display album and artist information from a music server or check the status of your security system or thermostats. Two way communication has been provided via a two way radio link, similar to a digital spread spectrum telephone.

The latest two way remote controls being introduced from companies such as AMX and Crestron use WiFi. This allows a whole host of other possibilities. The range is spectacular for one thing. You can roam around your entire home. On some units you can browse the internet too. Imagine, you are watching a game but you want updates from around the league. Just go to ESPN.com on your remote and take a look.

The remote can really make or break your system. You can have an unusable system with 7 different remotes or a slick system that even visitors can use with no instruction. It’s all up to you, your budget and your programmer.

By: Steve Faber

Requirements Of A Good Home Theater System

November 7th, 2009



The audio of a good home theatre system is very important. Though a lot of HDTVs may deliver good quality audio, not all built-in speaker systems will be satisfactory. If you have invested a great deal of money in getting a system that gives you top quality images then you may not want to compromise with the audio. You will require high-end audio to enjoy your home theater system. For this you will require a good set of speakers and a receiver.

Home theater and the standard stereo receivers are alike – the home theater receivers will support more channels. While the stereo receivers have only about two channels the home theater receivers support up to either five to seven channels.

Receivers must have enough output power. They must have the power to drive a large number of speakers. High power is required to get ample volume and noise-free sound. The HDTVs cannot deliver 10 watts on each speaker. In home theater systems it can be between 30-50 watts or maybe even more on each channel. High power will help you enjoy your home theater system better, but remember, high power is expensive.

Receivers must have lots of ports and different variety of ports as this will help connect other devices you might want to use through them. You will need two HDMI that is High Definition Multimedia Interface ports and you will have to attach other components like video and speaker connectors. You could also have an FM-tuner and satellite radio receiver fixed to it.

A speaker system consists of three speaker sets. If you cannot get extra speakers then you could use the stereo system already available at home. If you have extra speakers and your receiver has seven channels then you can have multiple speakers and connect each speaker to each channel.

To make your system one of the best and the most powerful ones you could use five speakers. You could use front-channel and surround system speakers on both the sides and one speaker at the center called the center-channel speaker. A special sixth one, an extra speaker that is called a sub-woofer may be added.

The speaker at the center, called the center-channel plays the conversation and the left and right units produce background and other sound effects. There may be a certain amount of overlapping between sources in any system otherwise it could sound unnatural.

The sub-woofer carries very low frequency sounds like the special effects in movies, gunshots, crashing buildings, jets etc.

The surround speakers are placed behind or onto the sides of the system and they produce the three hundred and sixty degree effect that all of us are used to from multiplexes and theaters. In addition to this, 3-D audio may also be added.

You must get a video-shielded system as the modern day HDTV sets do not have an electron gun and are not sensitive to magnets that are in the speaker systems.

Any set you buy has to be synchronized. Most manufacturers make sure that the speakers they offer for sale have seamless integration. Before buying a system you must ensure that it is able to produce a realistic, high-end audio experience.

By: Jill Kane