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Comparison Samsung HT-J4550K vs Philips HTD3570

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Samsung HT-J4550K
Philips HTD3570
Samsung HT-J4550KPhilips HTD3570
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from $204.00
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Acoustic system
Acoustics
5.1
floor
5.1
floor
Front (RMS)80 W/channel50 W/channel
Rear (RMS)80 W/channel50 W/channel
Centre (RMS)80 W/channel50 W/channel
Subwoofer (RMS)100 W/channel50 W/channel
Total power (RMS)500 W300 W
Frequency range40 – 20000 Hz20 – 20000 Hz
Sensitivity88 dB
Impedance3 Ohm4 Ohm
Bass reflex
Amplifier
Front80 W/channel50 W/channel
Rear80 W/channel50 W/channel
Centre80 W/channel50 W/channel
Subwoofer100 W50 W
Amplifier frequency range
20 – 20000 Hz /analogue input, digital: 20 – 40000 Hz/
20 – 20000 Hz
Receiver
Media format
CD/DVD
Blu-ray
CD/DVD
 
3D
Progressive scan
DLNA
Recorder
DivX Ultra
BD-Live
Parental control
Multimedia
Smart TV
FM tuner
Bluetooth
karaoke
karaoke Mix
 
FM tuner
 
 
 
Video file formats
DVD/VCD
MPEG4
H.264
AVCHD
MKV
VC-1
DVD/VCD
MPEG4
 
 
 
 
Other file formats
MP3/WMA
Audio CD
JPEG
FLAC
MP3/WMA
Audio CD
JPEG
 
Audio decoders
DTS
DTS 96/24
DTS-HD Master Audio
Dolby Digital
Dolby Digital Plus
Dolby TrueHD
 
 
 
Dolby Digital
 
 
Connection
Outputs
 
 
composite
Dolby Digital 5.1
HDMI
1 pc /aRC support/
1 pc /output/
Inputs
USB input
linear
 
LAN (RJ45)
to microphone
USB input
linear
optical
 
to microphone
General
Remote control
Magnetic shielding
Satellite body materialplastic
Subwoofer body materialwood
Player dimensions (WxHxD)430x55x224 mm360x58x335 mm
Front speaker dimensions (HxWxD)111.2x9.5x7.5 cm100x22x22 cm
Rear speaker dimensions (HxWxD)111.2x9.5x7.5 cm100x22x22 cm
Centre channel dimensions (HxWxD)7.7x22.8x7 cm9x18.5x8.2 cm
Subwoofer dimensions (HxWxD)30x15.5x28.5 cm26.5x16x26.5 cm
Color
Added to E-Catalogaugust 2015may 2013

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.

Front

Rated power delivered by the built-in home theater power amplifier per front channel.

Note that in home theaters the rated power of the amplifier output to any channel (any channel, not just the front one) is usually equal to the rated power of the standard speaker installed on this channel (see above). Therefore, many manufacturers do not give the characteristics of the built-in amplifier separately at all — firstly, they are easy to determine from the information about the speakers, and secondly, when using a system with complete acoustics, these data are not required. However, information about the power of the amplifier is indispensable if you plan to use third-party speakers instead of standard acoustics. The rated power of each such speaker must not be lower than the rated power on the corresponding amplifier channel — otherwise, various undesirable phenomena are possible at high volume, from sound distortion to damage to the speaker.
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