Product comparison · 2 home cinema systems

LG LHD687 home cinema system 4.2 channels vs Yamaha YHT-2940 home cinema system 5.1 channels 3D Black

15specifications compared
8differ
7identical
54known for one product only

Key differences

The Yamaha YHT-2940 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-2940 home cinema system 5.1 channels 3D Black has 3D. Optical disc player type: DVD player on the LG LHD687 home cinema system 4.2 channels, Not included on the Yamaha YHT-2940 home cinema system 5.1 channels 3D Black. Supported radio bands: PLL on the LG LHD687 home cinema system 4.2 channels, AM, FM on the Yamaha YHT-2940 home cinema system 5.1 channels 3D Black. Main unit dimensions (WxDxH): 360 x 58 x 298.5 mm on the LG LHD687 home cinema system 4.2 channels, 435 x 315 x 151 mm on the Yamaha YHT-2940 home cinema system 5.1 channels 3D Black.

Optical disc player type
- LHD687 home cinema system 4.2 channels:DVD player
- YHT-2940 home cinema system 5.1 channels 3D Black:Not included
3D
- LHD687 home cinema system 4.2 channels:No
- YHT-2940 home cinema system 5.1 channels 3D Black:Yes
Audio output channels
- LHD687 home cinema system 4.2 channels:4.2 channels
- YHT-2940 home cinema system 5.1 channels 3D Black:5.1 channels
Supported radio bands
- LHD687 home cinema system 4.2 channels:PLL
- YHT-2940 home cinema system 5.1 channels 3D Black:AM, FM
Main unit dimensions (WxDxH)
- LHD687 home cinema system 4.2 channels:360 x 58 x 298.5 mm
- YHT-2940 home cinema system 5.1 channels 3D Black:435 x 315 x 151 mm
Front speaker dimensions (WxDxH)
- LHD687 home cinema system 4.2 channels:233 x 998 x 300 mm
- YHT-2940 home cinema system 5.1 channels 3D Black:115 x 88 x 176 mm

Side by side

Differences highlightedShow differences only

Comparison of LHD687, YHT-2940
69 specifications	A LG LHD687 home cinema system 4.2 channels Model LHD687 View product	B Yamaha YHT-2940 home cinema system 5.1 channels 3D Black Model YHT-2940 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
Full HDKnown for one	Unknown — not stated by the source	Yes
Video upscaling	Yes	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
Audio2 differ
Audio output channelsDiffers	4.2 channels	5.1 channels
Audio decodersDiffers	Dolby Digital	DTS-HD Master Audio, Dolby Digital Plus, Dolby TrueHD
Audio D/A Converter (DAC)Known for one	Unknown — not stated by the source	24-bit/192kHz
Audio Return Channel (ARC)Known for one	Unknown — not stated by the source	Yes
RMS rated powerKnown for one	1250 W	Unknown — not stated by the source
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
Radio1 differ
FM radio	Yes	Yes
Supported radio bandsDiffers	PLL	AM, FM
Preset stations quantityKnown for one	50	Unknown — not stated by the source
Front speakersidentical
Front speakers RMS powerKnown for one	Unknown — not stated by the source	30 W
Front speaker peak powerKnown for one	Unknown — not stated by the source	100 W
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
Center speakeridentical
Center speaker RMS powerKnown for one	Unknown — not stated by the source	30 W
Center speaker peak powerKnown for one	Unknown — not stated by the source	100 W
Satellite speakersidentical
Satellite speakers RMS powerKnown for one	Unknown — not stated by the source	30 W
Satellite speaker peak powerKnown for one	Unknown — not stated by the source	100 W
Subwooferidentical
Subwoofer typeKnown for one	Unknown — not stated by the source	Active subwoofer
Subwoofer RMS powerKnown for one	Unknown — not stated by the source	30 W
Subwoofer peak powerKnown for one	Unknown — not stated by the source	100 W
Networkidentical
Bluetooth	Yes	Yes
Ethernet LAN	No	No
Wi-FiKnown for one	No	Unknown — not stated by the source
Ports & interfacesidentical
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 ports quantity	1	1
USB versionKnown for one	Unknown — not stated by the source	2.0
Composite video inKnown for one	Unknown — not stated by the source	3
Composite video outKnown for one	Unknown — not stated by the source	1
AUX inKnown for one	Unknown — not stated by the source	Yes
Digital audio coaxial inKnown for one	Unknown — not stated by the source	2
Digital audio coaxial outKnown for one	Unknown — not stated by the source	0
Digital audio optical in	1	1
Digital audio optical outKnown for one	Unknown — not stated by the source	0
Headphone outputsKnown for one	Unknown — not stated by the source	1
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
Audio (L/R) inKnown for one	1	Unknown — not stated by the source
Microphone inKnown for one	Yes	Unknown — not stated by the source
Displayidentical
On Screen Display (OSD)Known for one	Unknown — not stated by the source	Yes
Built-in displayKnown for one	Yes	Unknown — not stated by the source
Display resolutionKnown for one	1920 x 1080 pixels	Unknown — not stated by the source
Poweridentical
Power consumption (standby)Known for one	Unknown — not stated by the source	0.3 W
Power consumption (typical)Known for one	145 W	Unknown — not stated by the source
Weight & dimensions2 differ
Main unit dimensions (WxDxH)Differs	360 x 58 x 298.5 mm	435 x 315 x 151 mm
Main unit weightKnown for one	Unknown — not stated by the source	7.4 kg
Front speaker dimensions (WxDxH)Differs	233 x 998 x 300 mm	115 x 88 x 176 mm
Center speaker dimensions (WxDxH)Known for one	Unknown — not stated by the source	291 x 103 x 101 mm
Satellite speaker dimensions (WxDxH)Known for one	Unknown — not stated by the source	115 x 88 x 176 mm
Subwoofer dimensions (W x D x H)Known for one	Unknown — not stated by the source	262 x 287 x 264 mm
Packaging contentidentical
Remote control includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
4K Ultra HD upscalingKnown for one	Unknown — not stated by the source	Yes
ImpedanceKnown for one	Unknown — not stated by the source	6 Ω
Technical detailsidentical
Product colour	Black	Black
Power source typeKnown for one	Unknown — not stated by the source	AC
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

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.

More home cinema system comparisons

All home cinema system comparisons