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Comparison Yamaha YHT-1840 vs LG BH-6520T

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Yamaha YHT-1840
LG BH-6520T
Yamaha YHT-1840LG BH-6520T
from £896.97 
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from $275.00
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Acoustic system
Acoustics
5.1
shelf
5.1
floor
Front (RMS)30 W/channel
Rear (RMS)30 W/channel
Centre (RMS)30 W/channel
Subwoofer (RMS)30 W/channel
Total power (RMS)180 W
850 W /RMS/
Frequency range30 – 25000 Hz
Sensitivity83 dB
Impedance6 Ohm
Bass reflex
Active subwoofer
Amplifier
Number of channels5.1
Front70 W/channel
Rear70 W/channel
Centre70 W/channel
Receiver
Media format
 
 
CD/DVD
Blu-ray
3D
Progressive scan
DLNA
BD-Live
Parental control
Multimedia
 
FM tuner
Smart TV
FM tuner /50 stations/
Video file formats
 
 
 
 
 
 
DVD/VCD
MPEG4
H.264
AVCHD
MKV
DivX
Other file formats
MP3/WMA
 
JPEG
MP3/WMA
Audio CD
JPEG
Audio decoders
DTS
 
Dolby Digital
Dolby Digital Plus
Dolby Pro Logic II
Dolby TrueHD
DTS
DTS-HD High Resolution
Dolby Digital
Dolby Digital Plus
Dolby Pro Logic II
Dolby TrueHD
Connection
Outputs
 
Dolby Digital 5.1
headphone output
composite
Dolby Digital 5.1
 
HDMI1 pc1 pc
Inputs
 
coaxial /2/
linear /two pairs/
optical
 
USB input
 
linear
optical
LAN (RJ45)
HDMI4 pcs
General
Remote control
Magnetic shielding
Satellite body materialplastic
Subwoofer body materialwood
Player dimensions (WxHxD)435x151x315 mm
Front speaker dimensions (HxWxD)17.6x11.2x11.6 cm
Rear speaker dimensions (HxWxD)17.6x11.2x11.6 cm
Centre channel dimensions (HxWxD)11.1x27.6x11.8 cm
Subwoofer dimensions (HxWxD)29.2x29x31.5 cm
Color
Added to E-Catalogoctober 2017june 2012

Front (RMS)

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.

Rear (RMS)

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

Centre (RMS)

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

Subwoofer (RMS)

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.

Total power (RMS)

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.

Frequency range

The range of audio frequencies reproduced by a home theater speaker system. The wider the range — the richer the sound, the less likely it is that the acoustics will “cut off” part of the low or high frequencies. When evaluating this indicator, one should proceed from the fact that the range perceived by the average human ear is from 16 Hz to 20 kHz. However, modern home cinemas for the most part cover this range completely or almost completely.

Sensitivity

The sensitivity value determines the volume of the speaker system when an external signal of a certain power is applied to it. With the same signal strength and resistance (impedance), more sensitive acoustics provide greater volume.

Impedance

Home theater speaker system AC impedance. Impedance matters when connected to an amplifier: if the impedance of the speaker system is less than that of the amplifier, distortion in sound is possible, if it is higher, the acoustics may sound quieter than we would like. Naturally, in the original home theater sets, the speakers and amplifier are selected with the optimal impedance ratio, so in fact you only have to pay attention to this parameter when you need to connect acoustics to a “non-native” amplifier.

Active subwoofer

Subwoofer with its own built-in power amplifier. The presence of such an amplifier allows you to "unload" the main amplifier of the cinema, which has a positive effect on the overall volume and sound quality of the speaker system. In addition, active subwoofers are often equipped with fine-tuning tools that allow you to achieve the desired sound quality without moving the subwoofer around the room.
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