Comparison Sony BDV-N9200W vs Samsung HT-C7550W

Rated output of one front channel of a home theater system. This paragraph indicates the power of the complete front speaker, however, it can also be used to determine the characteristics of the built-in amplifier — its rated power on a particular channel (not necessarily the front one), usually, slightly exceeds the power of the corresponding speaker.

Rated power in this case is the highest average (root mean square, RMS) sound power that the speaker is capable of delivering for an unlimited time, working without failures and overloads. Individual signal jumps can be stronger, but the power of acoustics is determined precisely by RMS.

The higher this indicator(regardless of whether we are talking about front or some other speakers) — the louder the speakers, the better they are suitable for large rooms. At the same time, in a small room, too high power may be unnecessary, because. operating the speaker at full volume will cause discomfort — despite the fact that powerful acoustics also have the appropriate dimensions, weight and price. More detailed recommendations on the optimal power of the speaker components, depending on the characteristics of the situation, can be found in special sources.

Rated output of one home theater rear channel. For more information about the meaning of this parameter, see "Front" above.

Rated power of one centre channel of a home theater. For more information about the meaning of this parameter, see "Front" above.

Rated power of the subwoofer supplied with the home theater. See "Front" above for details on power rating; here we note that subwoofers often have a fairly high power, because. they are designed to cover low frequencies in all audio channels.

The total power rating of all home theater speakers, including subwoofers. The value of the rated power is described in detail in paragraph "Front" above.

The phase inverter is a tube installed in the column housing and having an outlet to the surrounding space. Most often, this feature is found in subwoofers, although it can also be used in main acoustics. The length of the tube is chosen so that a signal comes out of the outlet, inverted in phase relative to the signal from the front of the diffuser. This increases the sound pressure and improves the sound of the speakers, however, it can create certain side effects (in particular, associated with the hum of the air flow in the bass reflex pipe). Therefore, the presence or absence of this function is not a clear advantage — it all depends on the preferences of the listener and the design features of a particular speaker.

The ability to play home theater "three-dimensional" video and photo, that is, an image that, in addition to height and width, has a visible third dimension — depth. The illusion of depth is created by the difference between the images seen by the left and right eyes. Both pictures are displayed on one screen, and the role of a filter that allows each eye to see its own part of the image is usually performed by special glasses. Note that for normal 3D playback, such an image must be supported not only by the cinema player, but also by the screen or other device where the image is displayed (TV, monitor, projector, etc.). At the same time, home theaters, usually, are not equipped with 3D glasses — such glasses are either included in the delivery package of the mentioned playback device, or they must be purchased separately.

DLNA is a technology that allows you to combine various devices (computers, laptops, mobile phones, household appliances) into a single network for real-time content exchange. Thus, the user will be able to view content at will, regardless of the relative position of the screen and storage device (for example, watch a movie recorded on a computer hard drive in another room on a plasma panel in the living room) and even receive notifications from consumer electronics such as microwave ovens. ovens. Connection to such a network can be either wired or wireless (according to the Wi-Fi standard), automatic connection and configuration are possible.

A mode for watching movies originally intended to be shown in theaters. The difference between cinema and television viewing is the frame rate — 24 fps in the first case and 25 fps in the second — as a result, in a normal television show, the film is accelerated by 1 fps. The 24p mode is designed to give you the most cinematic experience when watching a movie on a TV screen — in this mode, the image is displayed on the screen at 24 fps and progressive scan (see Progressive scan). Note that in order to use this function, it is necessary that it is supported not only by the home theater, but also by the TV connected to it.