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Comparison Onkyo HT-S3800 vs Onkyo HT-S4505

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Onkyo HT-S3800
Onkyo HT-S4505
Onkyo HT-S3800Onkyo HT-S4505
from $555.00 up to $599.40
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from $543.24 up to $663.00
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Acoustic system
Acoustics
5.1
shelf
5.1
shelf
Front (RMS)105 W/channel100 W/channel
Rear (RMS)105 W/channel100 W/channel
Centre (RMS)105 W/channel100 W/channel
Subwoofer (RMS)100 W/channel100 W/channel
Total power (RMS)625 W500 W
Frequency range28 – 20000 Hz
Sensitivity83 dB
Impedance6 Ohm
Bass reflex
 /subwoofer/
 /subwoofer/
Active subwoofer
Amplifier
Number of channels5.1
Front60 W/channel
100 W/channel /6 Ohm/
Rear60 W/channel
100 W/channel /6 Ohm/
Centre60 W/channel
100 W/channel /6 Ohm/
Subwoofer60 W
100 W /6 Ohm/
Amplifier frequency range10 – 100000 Hz
Receiver
Progressive scan
Parental control
Multimedia
iPod connection
FM tuner
Bluetooth
 
FM tuner /memory for 40 st./
 
Other file formats
MP3/WMA
 
Audio decoders
DTS
 
DTS-HD Master Audio
Dolby Digital
Dolby Digital Plus
Dolby Pro Logic II
Dolby TrueHD
DTS
DTS-HD High Resolution
 
Dolby Digital
Dolby Digital Plus
 
Dolby TrueHD
Connection
Outputs
 
composite
Dolby Digital 5.1
headphone output
component
composite /2 pcs/
Dolby Digital 5.1
headphone output
HDMI1 pc1 pc
Inputs
USB input
coaxial
linear
optical
USB input /for connecting iPod/iPhone/
coaxial
 
optical /2 pcs/
HDMI4 pcs4 pcs
General
Remote control
Magnetic shielding
Player dimensions (WxHxD)435x150x321 mm
Front speaker dimensions (HxWxD)20x10x11 cm
Rear speaker dimensions (HxWxD)20x10x11 cm
Centre channel dimensions (HxWxD)10x24x12 cm
Subwoofer dimensions (HxWxD)35x30x37 cm
Color
Added to E-Catalogoctober 2016november 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.

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.

Number of channels

The number of amplifier channels may be greater than the total number of speakers in the system. This allows you to equip your home theater with new speakers and expand the sound quality of the system as a whole. More specifically, you can read about the appointment of the number of channels in the “Acoustics” paragraph. And this item is especially relevant for 5.1 systems, in which the receiver is equipped with a 7.1 amplifier thanks to it.

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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Onkyo HT-S4505 often compared