Product comparison · 2 home cinema systems

LG LHD687 home cinema system 4.2 channels vs Yamaha YHT-4940 home cinema system 5.1 channels 3D Black

11specifications compared
6differ
5identical
41known for one product only

Key differences

The Yamaha YHT-4940 home cinema system 5.1 channels 3D Black has 0.9 channels more audio output channels than the LG LHD687 home cinema system 4.2 channels (5.1 channels vs 4.2 channels). Only the Yamaha YHT-4940 home cinema system 5.1 channels 3D Black has 3D. Only the Yamaha YHT-4940 home cinema system 5.1 channels 3D Black has Wi-Fi. Optical disc player type: DVD player on the LG LHD687 home cinema system 4.2 channels, Not included on the Yamaha YHT-4940 home cinema system 5.1 channels 3D Black. Audio decoders: Dolby Digital on the LG LHD687 home cinema system 4.2 channels, DTS-HD Master Audio, Dolby TrueHD on the Yamaha YHT-4940 home cinema system 5.1 channels 3D Black.

Optical disc player type
- LHD687 home cinema system 4.2 channels:DVD player
- YHT-4940 home cinema system 5.1 channels 3D Black:Not included
3D
- LHD687 home cinema system 4.2 channels:No
- YHT-4940 home cinema system 5.1 channels 3D Black:Yes
Audio output channels
- LHD687 home cinema system 4.2 channels:4.2 channels
- YHT-4940 home cinema system 5.1 channels 3D Black:5.1 channels
Wi-Fi
- LHD687 home cinema system 4.2 channels:No
- YHT-4940 home cinema system 5.1 channels 3D Black:Yes

Side by side

Differences highlightedShow differences only

Comparison of LHD687, YHT-4940
52 specifications	A LG LHD687 home cinema system 4.2 channels Model LHD687 View product	B Yamaha YHT-4940 home cinema system 5.1 channels 3D Black Model YHT-4940 View product
Optical drive2 differ
Optical disc player typeDiffers	DVD player	Not included
Disc types supportedDiffers	CD, CD-R, CD-RW, DVD, DVD+R, DVD+RW, DVD-R, DVD-RW	No
Playback disc formatsKnown for one	MP3	Unknown — not stated by the source
Video1 differ
3DDiffers	No	Yes
Video formats supportedKnown for one	MPEG, MPEG1, MPEG2, XVID	Unknown — not stated by the source
Video D/A Converter (DAC)Known for one	12-bit/148MHz	Unknown — not stated by the source
Analog signal format systemKnown for one	NTSC, PAL	Unknown — not stated by the source
Video upscalingKnown for one	Yes	Unknown — not stated by the source
Full HDKnown for one	Unknown — not stated by the source	Yes
Aspect ratioKnown for one	Unknown — not stated by the source	16:9
Audio2 differ
Audio output channelsDiffers	4.2 channels	5.1 channels
RMS rated powerKnown for one	1250 W	Unknown — not stated by the source
Audio decodersDiffers	Dolby Digital	DTS-HD Master Audio, Dolby TrueHD
Audio formats supportedKnown for one	LPCM	Unknown — not stated by the source
Total Harmonic Distortion (THD)Known for one	25%	Unknown — not stated by the source
Number of speakersKnown for one	Unknown — not stated by the source	5
Radioidentical
FM radioKnown for one	Yes	Unknown — not stated by the source
Supported radio bandsKnown for one	PLL	Unknown — not stated by the source
Preset stations quantityKnown for one	50	Unknown — not stated by the source
Front speakersidentical
Front speaker sensitivityKnown for one	82 dB	Unknown — not stated by the source
Front speaker impedanceKnown for one	3 Ω	Unknown — not stated by the source
Front speaker woofer diameter (imperial)Known for one	7.62 cm (3")	Unknown — not stated by the source
Front speakers wall mountableKnown for one	Unknown — not stated by the source	Yes
Network1 differ
Bluetooth	Yes	Yes
Ethernet LAN	No	No
Wi-FiDiffers	No	Yes
Ports & interfacesidentical
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
USB ports quantity	1	1
Audio (L/R) inKnown for one	1	Unknown — not stated by the source
Digital audio optical inKnown for one	1	Unknown — not stated by the source
Microphone inKnown for one	Yes	Unknown — not stated by the source
HDMI inKnown for one	Unknown — not stated by the source	4
Number of HDMI outputsKnown for one	Unknown — not stated by the source	1
SCART ports quantityKnown for one	Unknown — not stated by the source	0
USB versionKnown for one	Unknown — not stated by the source	2.0
Displayidentical
Built-in display	Yes	Yes
Display resolutionKnown for one	1920 x 1080 pixels	Unknown — not stated by the source
Poweridentical
Power consumption (typical)Known for one	145 W	Unknown — not stated by the source
Weight & dimensionsidentical
Main unit dimensions (WxDxH)Known for one	360 x 58 x 298.5 mm	Unknown — not stated by the source
Front speaker dimensions (WxDxH)Known for one	233 x 998 x 300 mm	Unknown — not stated by the source
Technical detailsidentical
Product colour	Black	Black
KaraokeKnown for one	Yes	Unknown — not stated by the source
USB direct playbackKnown for one	Yes	Unknown — not stated by the source
Equalizer modesKnown for one	Bass Blast, Standart	Unknown — not stated by the source
Digital Living Network Alliance (DLNA) certifiedKnown for one	Unknown — not stated by the source	Yes
Power source typeKnown for one	Unknown — not stated by the source	AC
Subwooferidentical
Subwoofer typeKnown for one	Unknown — not stated by the source	Active subwoofer
Other featuresidentical
AirPlayKnown for one	Unknown — not stated by the source	Yes
Audio amplifierKnown for one	Unknown — not stated by the source	Yes
DisplayKnown for one	Unknown — not stated by the source	LED
iPhone connectivityKnown for one	Unknown — not stated by the source	Yes
iPod connectivityKnown for one	Unknown — not stated by the source	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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