Monday, July 21, 2008

Finding the Right Type of HTIB System

What is an HTiB?
What exactly is a Home Theater in a Box, or, as those of us who prefer to use acronyms rather than real words call it, an HTiB? Before you guffaw and wonder what kind of an idiot put this bit of advice together, give this question a chance to sink in. Now let's consider just how difficult a creature this HTiB thing is to pin down.

For starters, the term "Home Theater in a Box" is really a misnomer. The average HTiB almost never comes with a display device, and without a TV even the best package of speakers and amps is nothing more than a multichannel audio system. (That's not to say multichannel audio is a bad thing. It's just not home "theater" without video). Then there's the fact that not all HTiBs include a source component, such as a DVD player. If pressed, you could further make the case that the 5.1-channel speaker packages- five speakers and a subwoofer- sold by just about every known and less-well-known speaker company are, in their own way, also HTiBs – they just don't include amplification.

Let's press this issue a bit further. There are 2.1-channel speaker systems on the market that use two speakers and a subwoofer along with sophisticated signal processing to fool your ears into thinking you have something akin to a full-blown five-speaker setup. And then there are the single-speaker – or at least single-cabinet – systems that you can plop on a shelf or mount on a wall and give yourself a pseudo-surround experience.

Perhaps the best way to categorize something as an HTiB is the way it's sold. From a retailer's perspective, an HTiB probably is any type of home theater system that's sold as one SKU (short for Stock Keeping Unit, pronounced trippingly as "skew"). For the bean counters at the BBS (big box stores), HTiBs are a wonderful thing as they make it super-easy to keep track of inventory. For the salespeople, there's only one line item to key in or one UPC code to zap. Essentially, it's all about convenience for everyone from the manufacturer to the consumer.

So there we have it: one term, many confusing variations. Now sort these variables into some easy (or at least easier) to understand categories.

Discrete Component Systems
Some manufacturers repurpose standard-line components for sale in an HTiB. The simplest way of doing this is by placing a collection of the company's regular gear (in each one's individual box) in one large master box. In other words, you might find an AV receiver on the store shelf selling for $299 included in an HTiB that sells for $549. Depending on the price, the system may or may not include a source component. The benefit of a system like this is that the included AVR is a known quantity, one that's designed to work in a variety of situations with different types of speakers. It will usually offer the most opportunities for upgrading or expanding the system in the future.

Sometimes an HTiB will include separate components that are only available for sale in said package. This doesn't necessarily indicate that the components are lower in quality or capability. It does, however, mean you should look a little closer at things like amplifier power ratings as well as inputs and outputs.

Not all electronics manufacturers are also speaker manufacturers, though, so you can't assume that just because the system includes what appears to be a quality receiver that the speakers are of the same caliber. It's common for the speakers in an HTiB to be the weakest link in the performance chain. Still, you can pretty much bet that the speakers are the real deal and not something that relies on optimized equalization from the receiver to eke out sound that's at least listenable.

You might be getting a price break with this type of HTiB, but the real benefit is convenience since there's no need to spend time deciding which speakers/receiver/source component to buy. All that's required is one decision.

All-in-one Electronics plus Speakers
A more typical HTiB variation, especially in the lower price ranges, consists of a set of speakers matched with an all-in-one piece of electronics. In such cases, it's usually the AVR and a DVD player that are built into one chassis. It's definitely cheaper for the manufacturer to build a system this way (one external case instead of two, one power supply, etc.), so these systems are generally less expensive than their discrete counterparts. Another advantage of the all-in-one design is simplicity of hookup since there's at least one less component to connect. It's often easier to use, too, because the system's remote control can be designed around the functions of the combined electronics rather than being a traditional "universal" or "programmable" remote.

On the negative side, it's much harder to expand or upgrade a system like this. There may not be enough (or any) additional source inputs or switching capabilities. The built-in amplification may not be designed to handle a broad range of speaker impedances. Sometimes the manufacturer will push the limits of cost savings and putting all the amplification in the subwoofer – thereby cutting out one more power supply. In addition to almost totally eliminating the possibility of upgrading the system, it can also make it difficult to put the electronics and the speakers where you wish, due to the special wiring considerations of these systems.

2.1 Systems
There are systems that take the all-in-one concept a little further by reducing the number of speakers in the system from five to two (sometimes with or without a sub). Electronic processing is typically used to fool your ears into thinking the room is filled with speakers, even though it isn't. In addition to simplicity of set up, the main advantage of this type of system is that no rear speakers (or center channel) – and therefore no long runs of speaker wire – are required. The disadvantage, as you might expect, is that no amount of processing can replace the experience of having actual speakers in the room behind you.

These HTiBs might be upgradeable if they include the full slate of Dolby Digital and DTS processing circuitry as well as pre-outs for the center and rear channels. If that's the case, then a pair of rear speakers, a center channel, and a three-channel amp will step this one up to full 5.1-channel performance.

1.1 Systems
One-box, or single-cabinet, systems could be considered the ultimate HTiB since it's not only one box that the system comes in but the system itself is only one box. (Sometimes it's one master speaker/electronics unit with a subwoofer.) These systems are pretty much the ultimate in simplicity since they involve little more than plugging in a power cord and running an audio cable (either analog or digital) from the AV source component to the back of the master unit. More elaborate versions include the ability to connect and switch between two or more sources AV sources.

Ease of use, ease of installation, and the elimination of all speaker wires are the big benefits of single-cabinet-type HTiBs, but you have to be aware of the potential drawbacks. Obviously, these systems are not upgradeable. When you decide you want the full-blown 5.1 experience, you'll have to relegate this system to another room and start over. The performance, by the way, is often very room dependent. Some of these systems rely heavily on reflected sound and won't perform as well in rooms with lots of open space.

HTiB Speaker Packages
At this point, virtually any speaker company worth its salt has at least one 5.1-channel speaker package for sale. In a lot of cases, it's a combo made up of speakers out of the company's regular line. Since it's all together, it's easier to inventory, easier to ship, and easier to buy. Upgrade possibilities are usually wide open. Most speaker companies design packages with speakers that are specifically tailored to work together, especially in the case of matched satellites and subwoofers.

With flat-panel TVs being so popular, many speaker companies have come up with three-in-one, or even five-in-one, speakers. This type of speaker package differs from the single-cabinet HTiB in two ways. First, there are no electronics built-in and therefore a separate AVR is required. Second, the speakers housed within the main cabinet are discrete units. The benefit of the design is more cosmetic than anything else, and it's much easier to mount one long slender box than it is to set up three (or five) separate ones.

Boxing It Up
So if you keep in mind the only thing that's really unusual about an HTiB is the fact that it's packed in one box, it's not all that hard to understand the big HTiB picture. Once you take it out of the box, it's simply the audio portion of a home theater system. The big task is discovering which box contains the gear that's right for you.

written by, Darryl Wilkinson

HTIB Shopping Tips & Strategies

So you've walked into an electronics store or decided to find a system online, and now you're confronted with scores of HTiB choices. Now what? Well, remember that HTiBs exist for two basic reasons. The first is cost; the other is convenience. If cost is your only concern, find the least expensive system that looks the coolest for the money (just stay away from the guys selling them out of the backs of white vans). The entire experience will be painless, mindless, although it might leave you feeling cheap and dirty – not to mention the fact that you run a high chance that it will sound like pig doo-doo on a swelteringly hot day.

On the other hand, if you're at least vaguely interested in something that won't cause the average human being to fall to the floor while covering their ears and crying "Momma!", we suggest you spend a little bit of time navigating the aisles or web sites checking out some important aspects of each HTiB you're considering and how they meet with what you need.

How Big is Your Room?
In the same way you should consider the size of your room when it comes to picking the right screen size of your TV, you need to take into account the amount of available space you have for the audio portion of your home theater system. For example, you probably don't want an HTiB with large floorstanding speakers if you are trying to fit it all in an eight-foot by ten-foot room, along with a 60-inch rear projection HDTV. Likewise, if your room is more along the lines of 25-feet by 20-feet, you'll probably want more than a 2.1-channel system with tiny satellite speakers and an equally tiny subwoofer.

Look at the layout of your room. Will it be difficult to run wires to the rear channel speakers? If so, you might want to look for a system with wireless rear speakers. This is also the type of situation that makes it very worthwhile to check out single-speaker systems with processing that gives the impression of having rear – and sometimes even side – speakers.

If your room is simply awful in terms of acoustics, some HTiBs (and more are coming) include processing designed to adjust the output of the speakers to compensate for poor placement and difficult acoustics. Audyssey is one type of processing you'll find in several systems, but some companies offer proprietary technologies. While none of these electronic solutions can perform miracles, this technology can yield a dramatic improvement in many cases.

What are You Going to Watch?
The number of source inputs will be important if you have more than one A/V source component you want to use with the system. Do you have a DVD player, a satellite receiver (or cable set-top box), and maybe a camcorder or a video game console? If so, you'll need an appropriate number of A/V inputs. Some HTiB systems also include audio-only inputs, so make sure you have enough to cover all the video as well as audio sources.

Keep in mind that you may want an HD DVD or Blu-ray Disc player in the future. If so, you'll need at least a one component video input or – preferably – one or more HDMI inputs. Of course, your TV will need an HDMI connection, as well.

Check Out the Remote Control
Before you go to the check out with your system, check out the remote control. Regardless of how cool the system looks or where the buttons are located on the front panel, chances are you'll be spending most of your time with the remote control when you're using the system. Are the buttons easy to read – in daylight and in the dark? Are the buttons too small for your fingers? If it's a universal remote control, are the buttons laid out in a way that's easy to understand? Will the system's volume control work even though the remote control is in another mode (TV, DVD, etc.)? Will the remote control work some of the higher functions, such as menus or guides, of your other components?

If other people in your household are going to be operating the system, you should take into account how savvy each person is when it comes to home theater gear. Will your family be able to use the remote control without calling you every time they want to play a disc?

Will You Always Love this System?
If you have dreams of creating the ultimate system but are held back by a less-than-ultimate budget, consider buying an HTiB that will be easy to upgrade over time. Single-speaker systems as well as systems based around all-in-one electronics units will be difficult to improve upon or expand over time. Look for systems with discrete components that have multiple inputs and outputs. Finding a system with full-range pre-outs for all channels and a sub pre-out is ideal because this will allow you to upgrade amplifiers and/or speakers when you're ready.

Hearing is Believing
As with any audio system, the speakers are the most important part with regard to the overall sound quality. Unfortunately, you can't compare the way speakers sound based on specifications or looks. Fortunately, your ears are the best test instruments in the world. (And they're free, too!) There's simply no substitute for actually listening to the system.

Giving a system a sonic test drive may be difficult, at best, depending on where you're going to buy it. Obviously, there's no way to hear how a system sounds if you're shopping online. If that's the case, you may want to consider ordering from an online store that will let you send the system back if you don't like it.

If you're buying from a local retailer, it may still be difficult to hear how a system sounds but not impossible. Most stores have plenty of HTiBs on display, and even if the entire speaker package isn't hooked up, usually have the front left/right speakers/subwoofer (and sometimes center channel) are up and running. Listening to the two front speakers will give you a good idea as to the overall sound quality of the system. Of course, if all you're listening to are the front two speakers, make sure the system is set for two-channel mode and not 5.1. If you're lucky, the store will have the system set up in a kiosk-like display with the rear speakers hanging in the air above you. Sure, this isn't ideal, but it's better than nothing.

No retail store display, however, is ever going to be the best environment in which to hear a system, and no two stores will have exactly the same acoustics. As a result, it'll be hard to judge a system in one store against a system in another. But at least you'll get an idea of the differences between systems for sale in the same store.

Also make sure to bring your own demo material, stuff you're familiar with. Don't listen only to the material that the salesman or store has handpicked for the system. We recommend music and movies. A system that doesn't do justice to a singing voice probably won't make movie dialog sound believable either.

Take it Home
By now, any ideas you may have had that buying an HTiB would be quick and easy have probably been dashed. Actually, picking out the right HTiB for you is only as difficult as you want to make it. In many cases, an HTiB is perfect for the person who just wants to sit down and watch a movie without giving the electronics much thought. On the other hand, if you're finding yourself spending lots of time making decisions about each aspect we've mentioned here, you might do better taking the time to pick out individual electronic components and match them with an HTiB speaker-only package. You're likely to get better performance, and the result will be a system that's tailored specifically for you and your room.
Once you find what you want and take it home, then the real fun begins as you try to set up the system. But that's another topic for another Guide. . .

written by, Darryl Wilkinson

Sunday, July 13, 2008

Design

Today, "home cinema" implies a real "cinema experience" and therefore a higher quality set of components than the average television provides. A typical home theater includes the following parts:

1. Input Devices: One or more audio/video sources. High quality formats such as HDTV or Blu-ray are preferred, though they often include a VHS player or Video Game Systems. Some home theatres now include a home theater PC to act as a library for video and music content.

2. Processing Devices: Input devices are processed by either a standalone AV receiver or a Preamplifier and Sound Processor for complex surround sound formats. The user selects the input at this point before it is forwarded to the output.

3. Audio Output: Systems consist of at least 2 speakers, but can have up to 10 with additional subwoofer.

4. Video Output: A large HDTV display. Options include Liquid crystal display television (LCD), video projector, plasma TV, rear-projection TV, or a traditional CRT TV.

5. Atmosphere: Comfortable seating and organization to improve the cinema feel. Higher-end home theaters commonly also have sound insulation to prevent noise from escaping the room, and a specialized wall treatment to balance the sound within the room.

source From Wikipedia, the free encyclopedia

History

1950s and 1960s

In the 1950s, home movies became popular in the United States and elsewhere as Kodak 8 mm film (Pathé 9.5 mm in France) and camera and projector equipment became affordable. Projected with a small, portable movie projector onto a portable screen, often without sound, this system became the first practical home theater. They were generally used to show home movies of family travels and celebrations but also doubled as a means of showing private stag films. Dedicated home cinemas were called screening rooms at the time and were outfitted with 16 mm or even 35 mm projectors for showing commercial films. These were found almost exclusively in the homes of the very wealthy, especially those in the movie industry.

Portable home cinemas improved over time with color film, Kodak Super 8 mm film film cartridges, and monaural sound but remained awkward and somewhat expensive. The rise of home video in the late 1970s almost completely killed the consumer market for 8 mm film cameras and projectors, as VCRs connected to ordinary televisions provided a simpler and more flexible substitute.

1980s

The development of multi-channel audio systems and laserdisc in the 1980s added new dimensions for home cinema. The first known home cinema system was installed as a sales tool at Kirshmans furniture store in Metairie, Louisiana in 1974. They built a special sound room which incorporated the earliest quadraphonic audio systems and modified Sony trinitron televisions for projecting the image. Many systems were sold in the New Orleans area in the ensuing years before the first public demonstration of this integration occurred in 1982 at the Summer Consumer Electronics Show in Chicago, Illinois. Peter Tribeman of NAD (USA) organized and presented a demonstration made possible by the collaborative effort of NAD, Proton, ADS, Lucasfilm and Dolby Labs who contributed their technologies to demonstrate what a home cinema would "look and sound" like.

Over the course of three days, retailers, manufacturers, and members of the consumer electronics press were exposed to the first "home like" experience of combining a high quality video source with multi-channel surround sound. That one demonstration is credited with being the impetus for developing what is now a multi-billion dollar business.

1990s and 2000s

In the early to mid 90's, a typical Home Cinema would have a Laserdisc or S-VHS player fed to a large screen: rear projection for the more affordable setups, and LCD or CRT front projection in the more elaborate. In the late 1990s, the development of DVD, 5.1-channel audio, and high-quality video projectors that provide a cinema experience at a price that rivals a big-screen HDTVs sparked a new wave of home cinema interest. In the 2000s, developments such as High Definition video and newer HD display technologies enable people to enjoy a cinematic feeling in their own home at an affordable price.

Source From Wikipedia, the free encyclopedia

What's Home Cinema/Theater?

Home cinema, also called home theater, are entertainment systems that seek to reproduce cinema quality video and audio in a private home. In the 1950s, home movies became popular in the United States with Kodak 8 mm film projector equipment became affordable. The development of multi-channel audio systems and laserdisc in the 1980s created a new paradigm for home cinema. In the early to mid 1990's, a typical home cinema would have a Laserdisc or S-VHS videocassette player fed to a large rear projection television. In the late 1990s, home theather technology progressed with the development of DVD, Dolby Digital 5.1-channel audio ("surround sound"), and High-Definition Television.

In the 2000s, the term "home cinema" encompasses a range of systems. The most basic system could be a $50 DVD player, a standard CRT television($200), and a $100 "home theater in a box", a 2.1 speaker system with left and right speakers and a small 8" subwoofer cabinet. An expensive home cinema set-up might include a High-Definition DVD format such as Blu-ray, a 60" High-Definition Television with a "cinema-style" 16 X 9 format, a several thousand-watt home theatre receiver with five to seven surround sound speakers, and a powered subwoofer with a 12" subwoofer. The most expensive home theater set-ups, which can cost over $100,000 US, have digital projectors, expensive screens, and custom-built screening rooms which include cinema-style chairs and audiophile-grade sound equipment.

Article source From Wikipedia, the free encyclopedia