Your Home Theater System Bible

Home Theatre in a Box: Your Quick Fix Option

home theatre in a box2Everyone in the family, including you, had long been thinking of the best alternative to have each member of the family together on weekends or during school holidays, just to enjoy the time together without having to spend too much or going through a series of planning and preparation before having the needed relaxing time together.

As everyone likes to unwind after a day’s work in front of the TV set with some munchies on the side, you all decided to just have all other digital gadgets linked together and have everyone in the same room to enjoy each other’s company at the same time.

Having the customary TV set will not give you the satisfaction that you are looking for, however. The kids would be more anticipating towards this weekly family bonding time together, if there would be an even greater screen, better sounding movies and sound tracks, and more gadgets that can be linked together easily.

That’s when you thought of setting up your family home theatre.  That was fairly easy. You gather information on the net and from friends you knew have home theatres in their homes. Having a customized home theatre would be too costly for you, at this of year that you have other pending bills to consider. Besides, you do not have the luxury of time to personally select all other devices and other paraphernalia that should go with the setup.

If you’re in such dilemma, then this is the best option for you. Acquire a home theatre in a box instead. A home theatre in a box or HITB is, as the name suggests, a home theatre package that contains all the basic utilities as well as devices, including the manual for setting up your family home theatre. It is an all-in-one package that brings together a combination of a DVD or Blu-ray player, a multi-channel amplifier (which likewise includes a surround sound decoder, a radio tuner, as well as all other required features), speaker wires, connection cables, a set of five or more surround sound speakers (at times, however, just the left and right speakers), a low-frequency subwoofer, and also a remote control.

As the HTIB contains all the necessary pieces needed to put up a basic home theatre system, including the necessary guide to have the parts and or devices appropriately connected, even a novice can have a new home theatre system set up any time.

With the HTIB you won’t need to sacrifice precious time to have all the required equipment together, nor would need any technical knowledge to have the system functioning properly any time. However, if you would need to link other devices to your home theatre (a mobile able to project movies or a tablet, a gaming system perhaps, more speakers, and so on) you would need a setup that would calls for bigger wires for better connectivity.

But then again, if you are just interested in having the basic components for a home theatre system without the extra worries other setups demands, a home theatre in a box would always work well for you.

Tags: , , , , , ,

Posted on July 26, 2013 by Alphonso Soosay 1 Comment Short URL

How to Eliminate Ground Loops in a Home Theatre Setup

groud loopsYou have just finally set up your very own home theatre. You have decided to have a hybrid setup, a combination of a customized as well as a home theatre in a box, where you had actually made a few tweaks with the customized system setup specified and added a couple of devices as well as installed a better cable to connect all devices together. Once everything has been setup, and you thought that everything have been fixed securely, you decide it’s time to test the system. After plugging the power and turning on the TV set, you stretched on the sofa in front of the big screen. You were anticipating that you could enjoy the time watching a movie (you have just bought a DVD earlier just for this purpose) and rest for a while after a couple of hours working to have the system up and running. To your dismay, you see a succession of faint lines that continuously rise up the video display screen. Then, the speaker started to project a high frequency noise. Surprised, you automatically turn off the system. Then you turn it on again, after checking all other connectors are in place. After several attempts to solve the problem, which by now you know is called a ground and a hum loop is, you decided a friend whom you know is knowledgeable in troubleshooting similar problems. He came in just in time you are already on the verge of losing your temper and explains the why’s and how’s of this common home theatre setup problem.

After a lengthy discussion with your friend about your current concern, you were made aware that ground loops occur when two or even more devices are coupled to a common ground through different paths. Currents that flow through these multiple paths acquire energies that can cause damage, noise or a 50-Hz and 60-Hz hum in your audio or video equipment.

To avoid ground loops, every single signal grounds need to flow through one common point. But if two grounding points cannot be avoided, one must separate the signal and grounds from the other.

It’s important to point out at this point that a perfect or “quiet” ground is not really possible to establish or gain.  In theory, the reason behind this is that the grounding electrode conductor is a long wire between two different points. And as the distance between the wires increases, so does the possibility that more noise will be gathered.

How then can these be eliminated?

There are a number of ways to eliminate sound and video hum in a home theater system.  You need to make sure at first that the cable grounding block is well grounded to the service ground, and not just to a nearby water pipe. If it appears grounded properly then, check if you can plug the entire system into the same outlet. This is normally, all that is needed since all the ground connections are directed to the same point.

However, if it’s not feasible, especially for larger home theatre systems, you can alternatively use special ground breaking devices, like a ground isolator (this can transfer a signal across an electrically insulated barrier, i.e an RF ground breaker). You may also consider using a transformer as it can serve as an exceptionally efficient ground isolator.

To know how to properly setup your home theatre system, check out this  home theatre installation video.

Tags: , , , , , ,

Posted on July 25, 2013 by Alphonso Soosay 1 Comment Short URL