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SOUND SYSTEM
A home theater is a theater built in a home, designed to mimic (or exceed) commercial theater performance and feeling, more commonly known as a home cinema. Today, home cinema implies a real "cinema experience" at a private home.

Home cinema, or home theatre, refers to home entertainment systems that seek to reproduce a movie theater experience and mood using video and audio equipment in or outside a private home. As of 2015, system users typically use a large projected image from a video projector or a large flat-screen high-resolution HDTV screen, a movie or other video content on a DVD or high-resolution Blu-ray disc, which is played on a DVD player or Blu-ray player, with the audio augmented with five or more surround sound speakers and a low-frequency subwoofer.

Backyard theater, home theater in the backyard. Depending on the space available, it may simply be a temporary version with foldable screen, a projector and couple of speakers, or a permanent fixture with huge screens and dedicated audio set up poolside. Due to the outdoor nature, it is quite popular with BBQ parties and pool parties.

Home theater in a box, HTIB is an modestly-priced integrated home theater package which "bundles" together a combination DVD-Video or Blu-ray Disc player and multi-channel amplifier (which includes a surround sound decoder, a radio tuner, and other features), speaker wires, connection cables, a remote control, a set of five or more surround sound speakers (or more rarely, just left and right speakers) and a low-frequency subwoofer.

AV receiver, often referred to as home theater systems or home entertainment system. Front video projector and projector screen, often referred to as a home theatre or Home cinema. Home theater PC, HTPC or media PC is a convergence device that combines the functions of a personal computer and a media center software which feature video and music playback.

Media center, refers either to a dedicated computer appliance (like a Home theater PC) or to a specialized personal computer software, both of which are adapted for playing various kinds of media (music, movies, photos etc.), and it usually has a 10-foot user interface design to be used in living-room TV with a remote control.

Switchable projection window, is a new product and design having multifunctions for a room, and may turn a window into TV screen while remaining full function of a window.

In the 1950s, playing home movies became popular in the United States as Kodak 8 mm film projector equipment became more affordable. The development of multi-channel audio systems and later LaserDisc in the 1980s created a new paradigm for home video. In the early to mid-1990s, a typical home cinema in the United States would have a LaserDisc or VHS player fed to a large rear-projection television set. Some people were using expensive front projectors in a darkened viewing room.
Beginning in the late 1990s, and continuing throughout much of the 2000s, home-theater technology progressed with the development of the DVD-Video format, Dolby Digital 5.1-channel audio ("surround sound") speaker systems, and high-definition television (HDTV). In the 2010s, 3D television technology and Blu-ray Disc have ushered in a new era of home theater once again.

Home theater designs and layouts are a personal choice, and the minimum set of requirements for a home theater are: a television set or video projector CRT (no new models sold in U.S.), LCD, Digital Light Processing (DLP), plasma display, organic light-emitting diode (OLED), Silicon X-tal Reflective Display (SXRD), Laser TV, rear-projection TV, video projector, Standard-definition television (SDTV), HDTV, or 3D-TV at least 27 inches (69 cm) measured diagonally, an AV receiver or pre-amplifier (surround processor) and amplifier combination capable of at least stereo sound but preferably 5.1 Channel Dolby Digital and DTS audio, and something that plays or broadcasts movies in at least stereo sound such as a VHS HI-FI VCR or LaserDisc player (no new stand-alone models of either are available; VHS VCRs are usually bundled in combo decks with DVD players), a DVD player and/or a Blu-ray disc player, cable or satellite receiver, video game console, etc. Finally a set of speakers, at least two, are needed but more common are anywhere from six to eight with a subwoofer for bass or low-frequency effects.

A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; a device which converts an electrical audio signal into a corresponding sound. The first primitive loudspeakers were invented during the development of telephone systems in the late 1800s, but electronic amplification by vacuum tube beginning around 1912 made loudspeakers truly practical. By the 1920s they were used in radios, phonographs, public address systems and theatre sound systems for talking motion pictures.

The most widely-used type of speaker today is the dynamic speaker, invented in 1925 by Edward W. Kellogg and Chester W. Rice. The dynamic speaker operates on the same basic principle as a dynamic microphone, but in reverse, to produce sound from an electrical signal. When an alternating current electrical audio signal input is applied through the voice coil, a coil of wire suspended in a circular gap between the poles of a permanent magnet, the coil is forced to move rapidly back and forth due to Faraday's law of induction, which causes a diaphragm (usually conically shaped) attached to the coil to move back and forth, pushing on the air to create sound waves. Besides this most common method, there are several alternative technologies that can be used to convert an electrical signal into sound. The sound source (e.g., a sound recording or a microphone) must be amplified with an amplifier before the signal is sent to the speaker.

Speakers are typically housed in an enclosure which is often a rectangular or square box made of wood or sometimes plastic. Where high fidelity reproduction of sound is required, multiple loudspeakers may be mounted in the same enclosure, each reproducing a part of the audible frequency range (picture at right). In this case the individual speakers are referred to as "drivers" and the entire unit is called a loudspeaker. Miniature loudspeakers are found in devices such as radio and TV receivers, and many forms of music players. Larger loudspeaker systems are used for music, sound reinforcement in theatres and concerts, and in public address systems.

The term "loudspeaker" may refer to individual transducers (known as "drivers") or to complete speaker systems consisting of an enclosure including one or more drivers.

To adequately reproduce a wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level or maximum accuracy. Individual drivers are used to reproduce different frequency ranges. The drivers are named subwoofers (for very low frequencies); woofers (low frequencies); mid-range speakers (middle frequencies); tweeters (high frequencies); and sometimes supertweeters, optimized for the highest audible frequencies. The terms for different speaker drivers differ, depending on the application. In two-way systems there is no mid-range driver, so the task of reproducing the mid-range sounds falls upon the woofer and tweeter. Home stereos use the designation "tweeter" for the high frequency driver, while professional concert systems may designate them as "HF" or "highs". When multiple drivers are used in a system, a "filter network", called a crossover, separates the incoming signal into different frequency ranges and routes them to the appropriate driver. A loudspeaker system with n separate frequency bands is described as "n-way speakers": a two-way system will have a woofer and a tweeter; a three-way system employs a woofer, a mid-range, and a tweeter. Loudspeakers were described as "dynamic" to distinguish them from the earlier moving iron speaker, or speakers using piezoelectric or electrostatic systems as opposed to a voice coil that moves through a steady magnetic field.

IT’S A GREAT TIME to be a cord-hating music lover. Wireless speakers that let you pipe music to every room in your house are easier to set up and sound better than ever, in many cases rivaling the audio quality of a traditional sound system.

All of these speakers can play music either directly from a smartphone, tablet, computer or from a compatible hi-fi receiver. And you no longer have to be a geek to get one up and running. In most cases, all that’s required is plugging the speaker into an electrical outlet, launching a smartphone app and then pressing a few buttons to get the speaker paired with your home’s Wi-Fi network.

Unlike portable Bluetooth speakers—which are convenient but have lackluster sound quality and tend to cut out every so often—wireless speakers transmit CD-quality audio. In some cases, you can designate two speakers to serve as a stereo pair; in others, you can create a surround-sound home theater with multiple speakers. Most important, though, these wireless speakers offer flexibility, allowing you to build a system over time. For example, you could start with a midprice speaker for your living room; later when you upgrade, just move the old speaker to a smaller spot, like a bathroom or bedroom.

Choosing the right system, however, isn’t easy. Before you buy any speaker, you need to decide which wireless ecosystem you’re going to commit to (each with its own compatible speakers)—kind of like deciding between VHS and Beta decades ago. Sonos and AirPlay, for example, have been around for over a decade. But others, like Sony HomeShare and DLNA, are all but defunct. And although these protocols all have largely the same functionality, there are subtle differences among them.

Here’s a guide to finding the one that best suits your needs. check us out today at Deluxe online store to find wide range of product that suit your need.