Product comparison · 2 home cinema systems

LG LHD687 home cinema system 4.2 channels vs Yamaha YHT-1940 home cinema system 5.1 channels 3D Black

22specifications compared
14differ
8identical
91known for one product only

Key differences

The Yamaha YHT-1940 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). The LG LHD687 home cinema system 4.2 channels has 24.91% more total Harmonic Distortion (THD) than the Yamaha YHT-1940 home cinema system 5.1 channels 3D Black (25% vs 0.09%). The LG LHD687 home cinema system 4.2 channels has 10 more preset stations quantity than the Yamaha YHT-1940 home cinema system 5.1 channels 3D Black (50 vs 40). Only the Yamaha YHT-1940 home cinema system 5.1 channels 3D Black has 3D. Only the LG LHD687 home cinema system 4.2 channels has Bluetooth.

Optical disc player type
- LHD687 home cinema system 4.2 channels:DVD player
- YHT-1940 home cinema system 5.1 channels 3D Black:Not included
3D
- LHD687 home cinema system 4.2 channels:No
- YHT-1940 home cinema system 5.1 channels 3D Black:Yes
Audio output channels
- LHD687 home cinema system 4.2 channels:4.2 channels
- YHT-1940 home cinema system 5.1 channels 3D Black:5.1 channels
Total Harmonic Distortion (THD)
- LHD687 home cinema system 4.2 channels:25%
- YHT-1940 home cinema system 5.1 channels 3D Black:0.09%
Supported radio bands
- LHD687 home cinema system 4.2 channels:PLL
- YHT-1940 home cinema system 5.1 channels 3D Black:FM
Preset stations quantity
- LHD687 home cinema system 4.2 channels:50
- YHT-1940 home cinema system 5.1 channels 3D Black:40
Front speaker impedance
- LHD687 home cinema system 4.2 channels:3 Ω
- YHT-1940 home cinema system 5.1 channels 3D Black:6 Ω
Bluetooth
- LHD687 home cinema system 4.2 channels:Yes
- YHT-1940 home cinema system 5.1 channels 3D Black:No

Side by side

Differences highlightedShow differences only

Comparison of LHD687, YHT-1940
113 specifications	A LG LHD687 home cinema system 4.2 channels Model LHD687 View product	B Yamaha YHT-1940 home cinema system 5.1 channels 3D Black Model YHT-1940 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
Audio3 differ
Audio output channelsDiffers	4.2 channels	5.1 channels
Audio decodersDiffers	Dolby Digital	DTS, DTS-HD, Dolby Digital, Dolby Digital Plus, Dolby Surround
Audio D/A Converter (DAC)Known for one	Unknown — not stated by the source	24-bit/192kHz
Total Harmonic Distortion (THD)Differs	25%	0.09%
EqualizerKnown for one	Unknown — not stated by the source	Yes
Sound enhancement technologyKnown for one	Unknown — not stated by the source	Yes
Audio Return Channel (ARC)Known for one	Unknown — not stated by the source	Yes
Number of speakersKnown for one	Unknown — not stated by the source	5
Surround modes quantityKnown for one	Unknown — not stated by the source	17
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
Radio2 differ
FM radio	Yes	Yes
Supported radio bandsDiffers	PLL	FM
Radio Data System (RDS)Known for one	Unknown — not stated by the source	Yes
RDS featuresKnown for one	Unknown — not stated by the source	PLL
Preset stations quantityDiffers	50	40
Front speakers1 differ
Front speaker typeKnown for one	Unknown — not stated by the source	2-way
Front speakers RMS powerKnown for one	Unknown — not stated by the source	60 W
Front speaker impedanceDiffers	3 Ω	6 Ω
Front speaker peak powerKnown for one	Unknown — not stated by the source	100 W
Front speakers wall mountableKnown for one	Unknown — not stated by the source	Yes
Front speaker sensitivityKnown for one	82 dB	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 typeKnown for one	Unknown — not stated by the source	2-way
Center speaker RMS powerKnown for one	Unknown — not stated by the source	30 W
Center speaker impedanceKnown for one	Unknown — not stated by the source	6 Ω
Center speaker peak powerKnown for one	Unknown — not stated by the source	100 W
Center speaker wall mountableKnown for one	Unknown — not stated by the source	Yes
Satellite speakersidentical
Satellite speaker typeKnown for one	Unknown — not stated by the source	2-way
Satellite speakers RMS powerKnown for one	Unknown — not stated by the source	60 W
Number of satellite speakersKnown for one	Unknown — not stated by the source	2
Satellite speaker impedanceKnown for one	Unknown — not stated by the source	6 Ω
Satellite speaker peak powerKnown for one	Unknown — not stated by the source	100 W
Wireless satellite speakersKnown for one	Unknown — not stated by the source	No
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
Wireless subwooferKnown for one	Unknown — not stated by the source	No
Subwoofer impedanceKnown for one	Unknown — not stated by the source	6 Ω
Subwoofer peak powerKnown for one	Unknown — not stated by the source	100 W
Bass adjustmentKnown for one	Unknown — not stated by the source	Yes
Network1 differ
BluetoothDiffers	Yes	No
Ethernet LAN	No	No
Wi-Fi	No	No
Management featuresidentical
Sleep timerKnown for one	Unknown — not stated by the source	Yes
Ports & interfaces1 differ
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 quantityDiffers	1	0
Component video (YPbPr/YCbCr) outKnown for one	Unknown — not stated by the source	0
S-Video outputs quantityKnown for one	Unknown — not stated by the source	0
AUX inKnown for one	Unknown — not stated by the source	Yes
Audio (L/R) in	1	1
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
Microphone inKnown for one	Yes	Unknown — not stated by the source
Displayidentical
Built-in display	Yes	Yes
On Screen Display (OSD)Known for one	Unknown — not stated by the source	Yes
On Screen Display (OSD) languagesKnown for one	Unknown — not stated by the source	Simplified Chinese, Dutch, English, Spanish, French, Italian, Japanese, Russian
Display resolutionKnown for one	1920 x 1080 pixels	Unknown — not stated by the source
Poweridentical
Auto power offKnown for one	Unknown — not stated by the source	Yes
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 dataidentical
Package weightKnown for one	Unknown — not stated by the source	7.4 kg
Packaging contentidentical
ManualKnown for one	Unknown — not stated by the source	Yes
Quick installation guideKnown for one	Unknown — not stated by the source	Yes
Quick start guideKnown for one	Unknown — not stated by the source	Yes
Remote control includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
24p supportKnown for one	Unknown — not stated by the source	Yes
4K Ultra HD upscalingKnown for one	Unknown — not stated by the source	Yes
AirPlayKnown for one	Unknown — not stated by the source	No
Audio amplifierKnown for one	Unknown — not stated by the source	Yes
Bass reflexKnown for one	Unknown — not stated by the source	Yes
Deep colour supportKnown for one	Unknown — not stated by the source	Yes
DisplayKnown for one	Unknown — not stated by the source	LED
Easy setupKnown for one	Unknown — not stated by the source	Yes
Equalizer customizableKnown for one	Unknown — not stated by the source	Yes
ImpedanceKnown for one	Unknown — not stated by the source	6 Ω
Number of amplifier channelsKnown for one	Unknown — not stated by the source	2 channels
Number of tunersKnown for one	Unknown — not stated by the source	1 tuner(s)
Power LEDKnown for one	Unknown — not stated by the source	Yes
Smartphone/tablet remote supportKnown for one	Unknown — not stated by the source	Yes
Virtual surroundKnown for one	Unknown — not stated by the source	Yes
x.v.Color supportKnown for one	Unknown — not stated by the source	Yes
Satellite speakers wall mountableKnown for one	Unknown — not stated by the source	Yes
Technical details1 differ
Product colour	Black	Black
KaraokeDiffers	Yes	No
BD-LiveKnown for one	Unknown — not stated by the source	Yes
Frequency rangeKnown for one	Unknown — not stated by the source	30 - 25000 Hz
Power source typeKnown for one	Unknown — not stated by the source	AC
Sleep modeKnown for one	Unknown — not stated by the source	Yes
Sound effectsKnown for one	Unknown — not stated by the source	Acoustic resonance, Compression, Flanger/Digital Signal Processing (DSP)
Speaker typeKnown for one	Unknown — not stated by the source	2-way
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.

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