9.1 Ch. 1460W LG 3D Blu-ray Home Cinema System - BH9540TW

9.1 Channel 1460W LG 3D Blu-ray Home Theater SystemThe BH9540TW is an amazing home theater system from LG Electronics! This home cinema system certainly impresses without doubt and seamlessly completes your Ultra HDTV entertainment system.
It features a 9.1 channel 1460W Amp powering a total of 9 speaker units meticulously designed to create an enveloping sound effect around you. To reduce on the clutter of cabling, LG has introduced wireless rear surround speakers, which are easily setup through the wireless transmitter (TX) dongle and a separately powered wireless receiver (W4-4). The unit is priced at £699.99 and is available for purchase from several stores including Amazon, PC world, etc.


Attractive features of the BH950TW Home Cinema System

  • 9.1 Channel 1460W Amp

The music Amplifier at the core of the BH950TW home cinema system delivers a maximum of 1460W over 9.1 channels or to 9 speakers and a single subwoofer. All values measured at 10% THD and 1kHz, the Amp is rated at; Front speakers (L/R): 180W x 2, Front Height speakers (L/R): 90W x 2, Center speaker: 180W, Wireless Surround speakers (L/R): 180W x 2, Wireless Surround Height speakers (L/R): 90W x 2 and a Subwoofer: 200W. With this Amp, you are certain to enjoy rich powerful movie sonics.

  • 3D Surround Sound Processor

LG's 3D surround sound engine embedded in the Amp of the BH9540TW, presents unique sound calibration technology, which ensures you get a true 3D cinematic experience in the comfort of your living room. Coupled with the Cinema Surround Processing engine, the 3D surround sound effect on this home cinema system is made possible by the 9 speaker units, which deliver 9 discrete and highly directional sounds creating an enveloping sound effect from side-to-side and from top-to-bottom.

  • Aramid Fibre Speakers

The vibration sound cones for the speakers are made from aramid fibre that is very rigid and less prone to excessive excursion. This minimizes sound distortion and ensures a clearer and precise sound reproduction.

  • Wireless Rear Speakers

The connection of the Surround and surround height speakers has been made so simple and convenient for  installation with no clutter of wires running across the room. Along with the BH9540TW, a wireless Bluetooth transmitter (TX) dongle and receiver (RX) are supplied to enable the rear speaker wireless connection. At the back panel of the BH9540TW is a wireless port where the TX dongle is inserted. The wireless receiver is powered by a separate power source and the rear speakers are connected to it. The TX and RX units pair automatically upon powering up the home cinema for as long as the communication range does not exceed 20m in open space.

  • 3D Blu-ray Disc Player

The BH9540TW is equipped with a 3D Blu-ray disc player. If you have a compatible TV, you can enjoy a brighter and a clearer 3D picture. This disc player is capable of Ultra HD discs or content playback and 4K up-scaling. Additionally, it plays a wide range of DVDs and CDs as explained in the full tech specs section shortly.

  • LG Smart Entertainment

With the BH9540TW home cinema system, you have access to an ever growing world of entertainment bringing together all your favorite catch-up TV, Movies, Sport and Music services from LG Smart TV.

  • Private Sound Mode 2.0

The Private Sound Mode 2.0 allows you to enjoy your favorite movie or TV show without disturbing the rest of the family by sending sound from your BH9540TW home cinema system to your smartphone or tablet over a Wi-Fi connection.

  • Wireless Audio Streaming via Bluetooth

The BH9540TW home cinema system is enabled for Bluetooth audio streaming. Stream directly all your favourite audio playlists from your smartphone or Bluetooth enabled device to your LG Home Cinema System via Bluetooth.

  • DLNA

DLNA is Digital Living Network Alliance technology, which allows you to access video, photo and audio files stored on a server and enjoy them on your TV via home networking. Before connecting to your server PC, install SmartShare PC software on your PC. SmartShare PC software is for sharing video, audio and photo files stored on your computer to this unit as a DLNA compatible digital media server.

  • Miracast

The BH9540TW player is Miracast certified, which means you can display your pictures, videos, games and other content from your Miracast certified device or smartphone onto your TV screen through screen mirroring.

  • WiFi Direct

WiFi Direct allows you to play movie, music and photo files located on a Wi-Fi Direct certified device without the need of connecting through a network device such as an access point or wireless router. Just like the Miracast feature, only one device can be connected at a time.

Full tech specs of the BH9540TW Home Cinema System

Amplifier section

The BH9540TW amplifier is a 9.1 channel that delivers a total RMS music power output of 1460W as already discussed in the previous section. Refer to the Attractive features of the BH950TW Home Cinema System section for details.

Input and Output Ports

  • HDMI In/Out

The BH9540TW home cinema system features two HDMI input ports and one HDMI TV output port on the back panel. If you connect an HDCP compatible HDMI or DVI device to any of the HDMI input ports, it must be compatible with 720x576p, 1280x720p, 1920x1080i or 1920x1080p video input format.
On the other hand, the TV output port is enabled for HDMI-CEC, HDMI-ARC, Ultra HD 4K resolution and 4K upscaling. This feature allows you to enjoy your Ultra HD 4K movie title discs and content on your 4K HD TV.

  • Analog Audio Input port

At the rear panel of the BH9540TW, there is a single stereo RCA jack for analog audio input with design specs of  2.0 Vrms (1 kHz, 0 dB) and impedance of 600Ω (Ohms).

  • Digital Optical Input port

Again on the back panel there is also a digital optical interface for digital audio input with design specification of 3 Volts (peak-to-peak).

  • MIC Input port

On the front panel there are two 6.3 mm jacks for microphone input. However, some models may not have this input port.

  • Antenna input port

An FM Antenna input port is located at the rear panel of the BH9540TW home theater main unit. Depending on location it may be a 75-ohm unbalanced or 120-ohm balanced antenna type.

  • USB Input ports

The BH9540TW features two USB input ports; one at the rear of the unit and a second one on the front panel. You can connect your flash drive media content to the USB port on the front face. This port supports only USB Flash Drive and USB External HDD with FAT32 or NTFS file format. The Bus Power Supply for this port is DC 5V, 500 mA. The USB port at the rear panel is for connecting an HID (Human Interface Device) device, namely; a USB keyboard or mouse to type text or navigate menus. Its Bus Power Supply is DC 5V, 300 mA.

  • WLAN and LAN Ports

This home cinema system can be connected to your home broadband network via a wired Local Area Network (LAN) or a Wireless Local Area Network (WLAN).  At the rear of the BH9540TW main unit there is an Ethernet jack, which supports Ethernet (10BASE-T) and Fast Ethernet (100BASE-TX) to which you can connect a standard LAN cable to your home network. Additionally, there is an internally integrated IEEE 802.11n (5 GHz and 2.4 GHz bands) wireless networking module backward compatible with 802.11a/b/g Wi-Fi networks, which you can interface with an Access point or Wireless Router connected to your home broadband network. By connecting your home cinema system to a broadband home network, you have access to LG services such as software updates, BD-Live interactivity and other online Smart TV content services.

Tuner or Radio

The Tuner integrated on the BH9540TW is only for FM Radio and is operational for the entire FM Tuning Range of 87.50 to 108.00 MHz. The Tuner has memory for up to 50 channel presets though with no station renaming feature.

Blu-ray Disc Player 

  • System

The Blu-ray disc player features a semiconductor laser of wavelength 405nm for Blu-ray Disc playback and 650nm for DVD disc playback. The TV color signal system adopted is standard PAL/NTSC.

  • Playable discs

Supported playback discs by this disc player can be grouped into three; Blu-ray, DVD and CD. For Blu-ray,  Blu-ray 3D, Blu-ray 3D only and Blu-ray disc are supported. BD-R/RE discs that contain Movie, Music or Photo files and are encoded in BDAV and ISO 9660+JOLIET, UDF and UDF Bridge formats are supported. For DVD, supported discs include; DVD-ROM, DVD-R/RW and  DVD+R/RW that contain movie, music or photo files and are encoded in finalized AVCHD  and ISO 9660+JOLIET, UDF and UDF Bridge file formats.
Lastly, supported CDs include Audio CDs and CD-R/RW that contain Movie, Music or Photo files and are encoded in ISO 9660+JOLIET, UDF and UDF Bridge file format.

Supported file formats

The BH9540TW home cinema system supports playback of a wide range of video and audio file formats as indicated as follows;


  • Video files


File Location

File Extension

Codec Format

Audio Format

Subtitle

Disc,USB

“.avi”, “.divx”, “.mpg”, “.mpeg”, “.mkv”, “.mp4”, “.asf”, “.wmv”, “.m4v” (DRM free), “.vob”, “.3gp”, “.mov”, “.trp”, “.m2t”, “.mpe”, “.m1v”, “.m2v”, “.wm”, ”.flv”, “.ts”, “.dat”, ”.rmvb”

DIVX 3.11, DIVX4, DIVX5. DIVX6 (standard playback only)
XVID, MPEG1 SS, H.264/MPEG-4 AVC, MPEG2 PS, MPEG2 TS, VC-1 SM (WMV3), RV30, RV40

Dolby Digital, DTS, MP3, WMA, AAC, AC3, COOK

SubRip (.srt / .txt), SAMI (.smi), SubStation Alpha (.ssa/.txt), MicroDVD (.sub/.txt), VobSub (.sub), SubViewer 1.0 (.sub), SubViewer 2.0 (.sub/.txt), TMPlayer (.txt), DVD Subtitle System (.txt)


DLNA

“.avi”, “.divx”, “.mpg”, “.mpeg”, “.mkv”, “.mp4”, “.asf”, “.wmv”, “.m4v” (DRM free), “.3gp”, “.mov”, “.mpe”, “.m1v”, “.m2v”, ”.flv”, “.ts”, “.dat”

DIVX 3.11, DIVX4, DIVX5. DIVX6 (standard playback only)
XVID, MPEG1 SS, H.264/MPEG-4 AVC, MPEG2 PS, MPEG2 TS, VC-1 SM (WMV3)

Dolby Digital, DTS, MP3, WMA, AAC, AC3

SubRip (.srt / .txt), SAMI (.smi), SubStation Alpha (.ssa/.txt), MicroDVD (.sub/.txt), SubViewer 1.0 (.sub), SubViewer 2.0 (.sub/.txt), TMPlayer (.txt), DVD Subtitle System (.txt)


  • Audio files


File Location

File Extension

Sampling Frequency

Bitrate

Note

Disc,USB

“mp3”, “.wma”, “.wav”, “.m4a” (DRM free), “.flac”, “.ogg”, “.aiff”


 32 - 48 kHz (WMA), 16 - 48 kHz (MP3)

32 - 192 kbps (WMA),  32 - 320 kbps (MP3)

Some wav files are not supported on this player.

DLNA

“mp3”, “.wma”, “.wav”, “.m4a” (DRM free), “.flac”, “.ogg”


32 - 48 kHz (WMA), 16 - 48 kHz (MP3)

32 - 192 kbps (WMA), 32 - 320 kbps (MP3)

Some wav files are not supported on this player.

 

 

BH9540TW Speaker System specs

The BH9540TW Speaker System comprises of 2 x S94T1-S Front Speakers (Left/ Right), 1 x S94T1-C Center Speaker, 2 x S94T1-S Rear Speakers, 1 x S94T1-W Subwoofer, 2 x Front Height Speakers (Left/Right) and 2 x Rear Height Speakers (Left/Right).

  • Front and Rear Speakers (S94T1-S)

The Front and Rear speakers are exactly identical and are of type 2-Way 3 speaker system with input impedance 4 Ω and rated input power of 180W with a maximum power handling capacity of 360W. Each Front and Rear speaker measures (W x H x D) 290 mm x 1220 mm x 290 mm and weighs a net weight of 5.3 kg.

  • Center speaker (S94T1-C)

The Center Speaker is similarly of type 2-Way 3 speaker system with input impedance 4 Ω and rated input power of 180W and maximum power handling capacity of 360W. It measures (W x H x D) 341.5 mm X 79 mm X 81.5 mm and weighs 1.1 kg net.

  • Subwoofer (S94T1-W)

The S94T1-W subwoofer is a 1-Way 1 speaker system with rated input impedance of 3 Ω and input power 200W, with a maximum power input of 400W. It measures (W x H x D) 172 mm X 379 mm X 377 mm and has a net weight of 7.1 kg.

  • Front and Rear Height (Top) Speakers

Front height and Rear height speakers are 3D effect drivers built into the Front and Rear speakers respectively. Each speaker is of type 1-Way 1 speaker system with rated input impedance of 8 Ω and input power of 90W. They have a maximum power handling capacity of 180 W.

Wireless Receiver (W4-4)

The wireless receiver is used for pairing of the Rear and Rear top speakers to the main unit via the TX dongle inserted into the wireless port. It measures (W x H x D) 245 mm X 190 mm X 80.2 mm and approximately weighs 1.21 kg.

Power requirements

The power requirements of your BH9540TW main unit will vary depending on your region. Ensure you buy a unit compatible with your mains supply power. For UK, Middle East and Africa models, are rated  at AC 200-240V, 50/60Hz while US models are rated at AC 110-127V, 50/60Hz. The maximum power consumption for this unit is 130W in operation and less than 0.5W in standby mode.

BH9540TW Dimensions (W x H x D)

The main unit measures approximately 444 mm x 65 mm X 292.5 mm with a net weight of 3.3 kg.
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7.2 Channel 2450W Sony Home Theater - HT-M77

7.2 Channel 2450W Sony Muteki HT-M77The HT-M77 home theater is an improvement of the 2012 HT-M7. Just like the HT-M7, the HT-M77 is a very loud home theater system featuring an STR-KM77 AV receiver of 2450W RMS total music power and 9 speaker units. Sony has added attractive enhancements to the 2012 HT-M7. Among them, is an enhanced bass punch, which it achieved through use 30cm subwoofer drivers instead of the 25cm drivers adopted for the HT-M7 home theater.
Secondly, if you owned an HT-M7, you know how cumbersome it was to automate and connect media sources. Thanks to Sony, the 2014 HT-M77 is enabled for Bluetooth streaming and NFC for Bluetooth pairing. This new feature allows you to effortlessly stream your favorite tunes directly from your compatible iPhone/iPod, tablet or smartphone to the HT-M77 receiver. On the HT-M7, you had to stream through a Bluetooth enabled laptop connected to the AV receiver via an HDMI connection.
What's more, Sony has added more Soundfields on the HT-M77 to spice every bit of action. You can now enjoy your favorite football games with the Football sound effect activated.


Attractive Features on the HT-M77 Home Theater

  • 2450W RMS Total Amp Output Power

The HT-M77 is louder than its predecessor, the HT-M7. Sony ramped up the total RMS music power output on the HT-M7 from 2012W to a whooping 2450W. If you enjoy loud music, the HT-M77 is the one for you. It is a home theater system with a good bass response and with enough volume. To achieve these numbers, the Amp in the HT-M77 is driven too close to its limit as revealed shortly;
In stereo mode, it is rated at 120 W + 120 W (measured for 6 ohms, at 1 kHz and THD 1%) - which is the same with the HT-M7. However, in surround mode, the Amp is driven into severe distortions by as much as 30% as indicated as follows; Measured for 6 ohms at 1 kHz and THD 30% to get 264W to FRONT speakers per channel, 266W to CENTER speaker, 264W to SURROUND speakers per channel, 264W to SURROUND BACK speakers per channel, and lastly measured for 4 ohms at 100 Hz and THD 30%, to get 300W to the SUBWOOFERS per channel.

The very high THD values imply that in normal operation you will never fully enjoy Maximum volume on the HT-M77 for all media sources because at high volume the distortions become more pronounced and you experience a lot of discomfort at these volumes. However, general usage is always at about half the rated maximum volume. Even at this volume, the HT-M77 is still loud enough for a house party hosted in a large living or lounge room. Maximum volume is never really necessary!

  • Bluetooth and NFC for effortless streaming

To me, the Bluetooth feature is the best improvement made on the the HT-M7. Wireless music streaming has never been made any easier! You can stream directly from your compatible smartphone or tablet with a simple touch on the NFC area of the HT-M77 AV receiver.

  • Football and Digital Music Arena soundfields

On the HT-M7, there are three soundfields; Gaming, Movie and Music. Two new sound fields; Football and Digital Music Arena, have been introduced on the HT-M77. You can now enjoy football games with a live football stadium atmosphere if the Football soundfield is activated while watching your games. In addition, the Digital Music Arena DSP brings Live Music Concerts to life by mimicking arena sound effects.
  • Two 30 cm Metallic Cone type Subwoofer

The two 30cm metallic cone drivers in the HT-M77 are designed to give a lower frequency response than was possible with the HT-M7 which is delivered with two 25cm metallic cone type subwoofers. The HT-M77 features slightly bigger subwoofer drivers to give you a much heavier punch to rattle rattle your windows and floor!

Full tech specs of the HT-M77 Home Theater

  • 2450W Total Power Output (Measured at 1kHz, 6Ohms, 10%THD)
  • 7.2 analog Amplifier channels
  • Falcon 2.0 DSP
  • Bass/Treble Control
  • Jog Input Selector 
  • Bass and Treble Equalizer
  • Speaker Level Control (dB) FRT: BAL. L+1 to BAL. L+6, BALANCE, BAL R+1 to BAL. R+6 CNT: +/-6 SL, SR: +/-6 SBRL, SBR: +/-6 SW: +/-6 

Input and Output Ports

  • Bluetooth(NFC) In
  • 3 Audio In
  • 2 Optical Digital In
  • 1 Coaxial In
  • 3 HDMI In
  • 1 HDMI Out
  • 1 USB In

Available Soundfields 

  • Movie
  • Music 
  • Gaming 
  • Football mode 
  • Digital Music Arena

Decoding Sound Formats 

Tuner

  • 30 AM/FM Channel presets
  • Preset Channel FM/AM Station Name 
  • Auto Tuning 
  • Direct Tuning
  • FM Mode

Video Features 

  • A/V SYNC
  • LPCM for HD Surround from Blu-ray Disc
  • HDMI Quality - 1080p
  • HDMI Quality - 1080/24p
  • HDMI Quality - Deep Color
  • HDMI Quality - x.v.Color (xvYCC)
  • HDMI Quality - Audio Return Channel
  • HDMI Quality - 3D Pass Through
  • HDMI Quality - HDMI Pass Through
  • HDMI Quality - 3D over HDMI

General Display 

  • Union Jack Sleep Timer
  • (up to 2 hours) Auto Standby 
  • Pin Jack Nickel 

Speaker System 

  • Subwoofer speaker system

    • Bass Reflex Unit
    • 30cm cone type  driver.
    • 4 ohms rated impedance 
  • Front Speaker system

    • Bass Reflex system
    • 2 way 3 driver
    • 2.5cm horn type
    • Two 20cm cone type Woofer
    • 6 ohms rated impedance 
  • Surround Speaker System 

    • Bass Reflex unit
    • 2 way 2 driver
    • 2.5cm horn type Tweeter
    • 16cm cone type Woofer
    • 6 ohms rated impedance 
  • Surround back speaker system

    • Full range
    • Closed Box Speaker unit
    • 10cm cone type woofer
    • 6 ohms rated impedance
  • Center Speaker System

    • Bass Reflex
    • Full range
    • Magnetically shielded
    • 6 ohms rated impedance
    • 10cm cone type woofer

Power requirements

  • Input power: 110-127V or 220-240V AC, 50/60Hz depending on region.
  • Power consumption in operation: 195W
  • Power consumption in idle: 0.3W (with Ctrl HDMI set to off) 

Weight and Dimensions

  • Main Unit

The main unit measures approximately 430 x 178 x 336mm (W x H x D) and weighs 10.3kg.

  • Front Speaker

Front Speakers are approximately 280 x 925 x 265mm (W x H x D) and weighing roughly 15kg.

  • Center Speaker

The center speaker size is roughly 430 x 182 x 178mm (W x H x D) with weight of approximately 3.3kg 
  • Surround Speaker

Each Surround Speaker approximately weighs 13kg with approximate dimensions of (W x H x D) 280 x 885 x 265mm.

  • Subwoofer

A single subwoofer weighs roughly 14kgs and measures approximately (W x H x D) 410 x 555 x 350mm. 
  • Rear Surround Speaker

Rear Surround Speakers are the smallest with approximate dimensions 280 x 235 x 162mm (W x H x D) and weight 2.4kg

 

HT-M77 Buying Guide

  • The HT-M77 is currently priced at $1399.99, which is comparatively lower than most high end home theater systems in its category. I would bet that the HT-M77 is the best home theater you can get given its power and at such a low price. 
  •  Like its predecessor, the HT-M7, the quality of the media inputs affect performance of the HT-M77. So to enjoy it to the fullest always use high quality media sources, i.e HD movies, High quality audio, etc. 
  • If you are to turn up the volume to maximum, set the speaker level controls at about 0dB. At this level sound distortions are less pronounced and the output is really good. Anything above 0dB makes the output sound uncomfortable to listen to.
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Sony Muteki STR-KM7 AV - Review

7.2 Channel 2012 W  Muteki STR-KM7 AV ReceiverSony Muteki STR-KM7  is a 7.2 channel AV Receiver for the HT-M7 home theater system. It processes full HD input signals and delivers 2012W RMS music power to a 9-speaker box configuration. I have owned this Muteki STR-KM7
for two years now and I can comfortably say I'm very satisfied. It is a home theater built for action. It is incredibly loud; its two Subwoofers are designed to deliver a heavy punch for majority of media sources. 

If you are a movie lover and a fan of loud parties, a phenomenal 2012W RMS of music power is available to the speakers. You will enjoy every bit of action with incredible clarity and volume. For movies enriched with bass effects (LFE channels), the subwoofers give you a thunderous rumbling effect with clean bass and remarkable voice clarity. This home theater is able to reproduce low frequency notes with great clarity and power. The metallic cone speakers adopted by Sony make it possible to reproduce sound with minimal distortion. 

The STR-KM7 processes Dolby TrueHD, HD Digital Cinema Sound and DTS 96kHz/24bit audio formats. In addition, it allows 3D and HD picture pass-through. DTS Master Audio is down mixed to DTS 96kHz/24bit. Some models however, do not process Dolby TrueHD and DTS Master Audio. Always confirm this for your model before purchase. Logos of Dolby TrueHD, HD Digital Cinema Sound and DTS 96kHz/24bit must appear on the AV receiver unit and packing boxes.

7.2 Channel 2012W  Muteki HT-M7 Home Theater
I like how this STR-KM7 reproduces the sound of the canon while watching the hunger games DVD; it gives you a heart wrecking boom! It is without doubt that any movie with this home theater is always a pleasure to watch. The STR-KM7 is built for movies, and gives a true cinematic experience as advertised! From my continued use I have noticed movies encoded in DTS 5.1 or Dolby 5.1 audio formats or higher give the best experience.

The Sony Muteki STR-KM7 is easy to automate and easy to set up if you know what you are doing. It comes along with an elaborate manual detailing every bit. For me, I normally connect a PC/Laptop, HDMI Blu-ray Player and HDTV/SATV; and control everything via an Android phone.  

The STR-KM7 is delivered in two boxes weighing 65+34 kgs. It comes along with 9-aluminium cone speaker box system; 1 center, 2 surround, 2 surround back, 2 subwoofers, 2 front speakers and a single remote. The STR-KM7 has been sold in several other models like for instance; Muteki STR-K7SW - a model for middle East and Africa. All these are just AV receiver variants used with the same HT-M7 home theater system, but with only slight improvements among them and tailored for specific markets.

Like any other AV receiver, the STR-KM7 has its downside as well. I don't get enough Bass especially when listening to music. I would have loved to get a little more punch from the Subwoofers but they seem to max out at half volume (though even at this level it is still good enough for the price) and any further increases in volume seems to affect only the front and surround speakers. This leaves you craving for more bass. At maximum volume the bass effect seems to get blanked out by the sound from the front and surround speakers. It is more evident when listening to mp3 music and media not loaded with LFE effects. It's like as though, some channels lose power as you turn up the volume. The KM7 will never set your floor into vibration because its deep bass drivers are not designed to respond to audio frequencies lower than 100Hz. Deep bass frequencies lie somewhere between 20Hz and 100Hz. So if you are the kind that enjoys deep bass that rattles your spine, this is not for you! Noteworthy though, the STR-KM7 is very loud, even at half volume it delivers just perfectly, loud enough to satisfy your ears!

If you choose to sync the Sony Muteki STR-KM7 with the TV through BRAVIA sync, you are able to control it through the TV using a single remote. It is able to recognize the TV output selected. I have tested this on a Phillips and a Sony TV. I cannot guarantee whether other TV's will behave the same way. Though, the down side of this sync, is that sometimes the sound output gets distorted  and may require a reset to normalize.

The USB playback option is very limited. This Sony Muteki STR-KM7 can only play WMA, AAC and MP3 files of bit rates not more than 192kbps and it is unable to read NTFS formatted USB devices, portable HDDs for that matter. It becomes slower between playbacks for devices stacked with a large volumes of audio files. It allows up 100 folders and maximum of 8-level folder depth thereby limiting you on the number of hours and precious audio file playback. A solution to this is to connect a portable playback device to one of the AV ports on the rear panel instead of using USB; giving you the luxury of playing all kinds of files without worrying about system limitations.

Surprisingly, the Sony Muteki STR-KM7 has fewer manual controls making its remote an indispensable part. You have to keep it far from destructive kids lest you get stuck with a box you can hardly operate and program. Overall, it is a fantastic system built with an extra touch of class. If I were to rate it on a scale of 1-5, I would give it a 4.8. For more information and detailed technical specifications of the STR-KM7, please visit tech specs of the KM7. 

A few Notes:
  • It should be noted that this system is rated 2012W Total RMS power. The speaker output ratings given are obtained about a specific frequency (i.e. 1 kHz) and speaker load (say 6 ohms) as indicated instead of the entire signal range of 20-20kHz. For this reason the very high values are justified. In addition, the high aggregate harmonic distortion value means at some point you may experience some sound discomfort. I have experienced this during my continued use of the KM7 especially while playing some MP3 files from a laptop. Turning the volume down a bit,  distortions become less pronounced. 
  • If files are played from a high quality source, the output is similarly of a high quality. Playing files from Android phones and tablets has always given me the best output quality at all volumes. For best sound output from all sources, it is advisable to connect all inputs to an audio distortion correction unit and pick inputs to the home theater from the outputs of this unit. 
  • Currently, 7.2 channel digital media is not readily available. Most media copies available commercially are recorded in the traditional 5.1 channel format. This means a 5.1 channel media source will never give you the sound effects as intended by the recording sound engineer much as the KM7 tries to predict and reproduce the remaining channels for a 7.2 channel output configuration. 
  • The STR-KM7 is not network AV receiver; does not support WiFi, Bluetooth Streaming and NFC pairing for Bluetooth. Automation is very limited to the HDMI-CEC or BRAVIA Sync features.  
  • The HT-M7 i.e.[STR-KM7 + 9 speaker units] currently goes for $999.99 buying price, which is comparatively lower than other high end home theater systems in its category. Even if this is a 2012 make I would not think twice cashing in on it because it gives you more than its price tag can fetch! 
  • In case you are interested in the user and service manuals, just drop me an e-mail.
  • You might also find the STR-KM77 particularly interesting.
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