Product comparison · 2 home cinema systems

LG DM7630 home cinema system vs LG LHD687 home cinema system 4.2 channels

22specifications compared
11differ
11identical
54known for one product only

Key differences

The LG LHD687 home cinema system 4.2 channels has 510 W more RMS rated power than the LG DM7630 home cinema system (1250 W vs 740 W). The LG LHD687 home cinema system 4.2 channels has 15% more total Harmonic Distortion (THD) than the LG DM7630 home cinema system (25% vs 10%). The LG DM7630 home cinema system has 1 Ω more front speaker impedance than the LG LHD687 home cinema system 4.2 channels (4 Ω vs 3 Ω). Only the LG LHD687 home cinema system 4.2 channels has Bluetooth. Playback disc formats: CD audio, DVD-Video on the LG DM7630 home cinema system, MP3 on the LG LHD687 home cinema system 4.2 channels.

Playback disc formats
- DM7630 home cinema system:CD audio, DVD-Video
- LHD687 home cinema system 4.2 channels:MP3
Video formats supported
- DM7630 home cinema system:AVI, DIVX, MPEG
- LHD687 home cinema system 4.2 channels:MPEG, MPEG1, MPEG2, XVID
RMS rated power
- DM7630 home cinema system:740 W
- LHD687 home cinema system 4.2 channels:1250 W
Audio formats supported
- DM7630 home cinema system:AC3, MP3, PCM, WMA
- LHD687 home cinema system 4.2 channels:LPCM
Total Harmonic Distortion (THD)
- DM7630 home cinema system:10%
- LHD687 home cinema system 4.2 channels:25%
Supported radio bands
- DM7630 home cinema system:AM, FM
- LHD687 home cinema system 4.2 channels:PLL
Front speaker impedance
- DM7630 home cinema system:4 Ω
- LHD687 home cinema system 4.2 channels:3 Ω
Bluetooth
- DM7630 home cinema system:No
- LHD687 home cinema system 4.2 channels:Yes

Side by side

Differences highlightedShow differences only

Comparison of DM7630, LHD687
76 specifications	A LG DM7630 home cinema system Model DM7630 View product	B LG LHD687 home cinema system 4.2 channels Model LHD687 View product
Optical drive2 differ
Disc loading typeKnown for one	Tray	Unknown — not stated by the source
Disc types supportedDiffers	CD, CD-R, CD-RW, DVD+R, DVD+RW, DVD-R, DVD-RW	CD, CD-R, CD-RW, DVD, DVD+R, DVD+RW, DVD-R, DVD-RW
Playback disc formatsDiffers	CD audio, DVD-Video	MP3
Video1 differ
Video formats supportedDiffers	AVI, DIVX, MPEG	MPEG, MPEG1, MPEG2, XVID
Aspect ratioKnown for one	4:3, 16:9	Unknown — not stated by the source
Progressive scanKnown for one	Yes	Unknown — not stated by the source
3DKnown for one	Unknown — not stated by the source	No
Video D/A Converter (DAC)Known for one	Unknown — not stated by the source	12-bit/148MHz
Analog signal format systemKnown for one	Unknown — not stated by the source	NTSC, PAL
Video upscalingKnown for one	Unknown — not stated by the source	Yes
Audio3 differ
RMS rated powerDiffers	740 W	1250 W
Signal-to-Noise Ratio (SNR)Known for one	75 dB	Unknown — not stated by the source
Audio formats supportedDiffers	AC3, MP3, PCM, WMA	LPCM
Total Harmonic Distortion (THD)Differs	10%	25%
EqualizerKnown for one	Yes	Unknown — not stated by the source
MP3 bit ratesKnown for one	32 - 320 Kbit/s	Unknown — not stated by the source
WMA bit ratesKnown for one	40 - 192 Kbit/s	Unknown — not stated by the source
Audio output channelsKnown for one	Unknown — not stated by the source	4.2 channels
Radio1 differ
Supported radio bandsDiffers	AM, FM	PLL
FM band rangeKnown for one	87.5 - 108 MHz	Unknown — not stated by the source
AM band rangeKnown for one	522 - 1710 kHz	Unknown — not stated by the source
Preset stations quantityKnown for one	Unknown — not stated by the source	50
Front speakers1 differ
Front speaker typeKnown for one	2-way	Unknown — not stated by the source
Front speakers RMS powerKnown for one	156 W	Unknown — not stated by the source
Front speaker impedanceDiffers	4 Ω	3 Ω
Front speaker sensitivityKnown for one	Unknown — not stated by the source	82 dB
Front speaker woofer diameter (imperial)Known for one	Unknown — not stated by the source	7.62 cm (3")
Center speakeridentical
Center speaker typeKnown for one	2-way	Unknown — not stated by the source
Center speaker RMS powerKnown for one	75 W	Unknown — not stated by the source
Center speaker impedanceKnown for one	6 Ω	Unknown — not stated by the source
Satellite speakersidentical
Satellite speaker typeKnown for one	2-way	Unknown — not stated by the source
Satellite speakers RMS powerKnown for one	75 W	Unknown — not stated by the source
Satellite speaker impedanceKnown for one	6 Ω	Unknown — not stated by the source
Subwooferidentical
Subwoofer typeKnown for one	Passive subwoofer	Unknown — not stated by the source
Subwoofer RMS powerKnown for one	203 W	Unknown — not stated by the source
Subwoofer impedanceKnown for one	3 Ω	Unknown — not stated by the source
Network1 differ
BluetoothDiffers	No	Yes
Management featuresidentical
Sleep timerKnown for one	Yes	Unknown — not stated by the source
Ports & interfacesidentical
USB versionKnown for one	2.0	Unknown — not stated by the source
Component video (YPbPr/YCbCr) outKnown for one	1	Unknown — not stated by the source
FM antennaKnown for one	Yes	Unknown — not stated by the source
HDMI ports quantityKnown for one	Unknown — not stated by the source	1
Digital audio optical inKnown for one	Unknown — not stated by the source	1
Displayidentical
On Screen Display (OSD)Known for one	Yes	Unknown — not stated by the source
Built-in displayKnown for one	Unknown — not stated by the source	Yes
Display resolutionKnown for one	Unknown — not stated by the source	1920 x 1080 pixels
Weight & dimensions2 differ
Main unit dimensions (WxDxH)Differs	277 x 365.5 x 343.5 mm	360 x 58 x 298.5 mm
Main unit weightKnown for one	5.7 kg	Unknown — not stated by the source
Front speaker dimensions (WxDxH)Differs	240 x 336 x 387 mm	233 x 998 x 300 mm
Front speaker weightKnown for one	5 kg	Unknown — not stated by the source
Center speaker dimensions (WxDxH)Known for one	277 x 160 x 120 mm	Unknown — not stated by the source
Center speaker weightKnown for one	2 kg	Unknown — not stated by the source
Satellite speaker dimensions (WxDxH)Known for one	204 x 255 x 331 mm	Unknown — not stated by the source
Satellite speaker weightKnown for one	2.8 kg	Unknown — not stated by the source
Subwoofer dimensions (W x D x H)Known for one	261 x 409 x 331 mm	Unknown — not stated by the source
Subwoofer weightKnown for one	6.5 kg	Unknown — not stated by the source
Packaging contentidentical
Remote control includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Audio amplifierKnown for one	Yes	Unknown — not stated by the source
Audio dynamic range CDKnown for one	80 dB	Unknown — not stated by the source
Image formats supportedKnown for one	JPG	Unknown — not stated by the source
Parental controlKnown for one	Yes	Unknown — not stated by the source
Technical detailsidentical
Playback modesKnown for one	Random, Repeat	Unknown — not stated by the source
SlideshowKnown for one	Yes	Unknown — not stated by the source
Equalizer modesKnown for one	Unknown — not stated by the source	Bass Blast, Standart
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	145 W

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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