Product comparison · 2 home audio systems

LG CM2531 home audio system vs Yamaha PianoCraft 640

16specifications compared
4differ
12identical
32known for one product only

Key differences

Product colour
- CM2531 home audio system:White
- PianoCraft 640:Silver, White
RMS rated power
- CM2531 home audio system:20 W
- PianoCraft 640:130 W
Preset stations quantity
- CM2531 home audio system:50
- PianoCraft 640:30
Apple docking compatibility
- CM2531 home audio system:iPad, iPhone
- PianoCraft 640:iPod

Side by side

Differences highlightedShow differences only

Comparison of CM2531, PianoCraft 640
48 specifications	A LG CM2531 home audio system Model CM2531 View product	B Yamaha PianoCraft 640 View product
Design1 differ
TypeKnown for one	Unknown — not stated by the source	Home audio micro system
Product colourDiffers	White	Silver, White
Optical disc player	Yes	Yes
Cassette deck	No	No
Number of optical discsKnown for one	Unknown — not stated by the source	1 discs
Multimedia1 differ
RMS rated powerDiffers	20 W	130 W
Speaker typeKnown for one	Unknown — not stated by the source	2-way
Number of speakersKnown for one	Unknown — not stated by the source	2
Woofer diameterKnown for one	Unknown — not stated by the source	13 cm
Tweeter diameterKnown for one	Unknown — not stated by the source	2.5 cm
ImpedanceKnown for one	Unknown — not stated by the source	6 Ω
Signal-to-Noise Ratio (SNR)Known for one	Unknown — not stated by the source	110 dB
Total Harmonic Distortion (THD)Known for one	Unknown — not stated by the source	10%
Frequency rangeKnown for one	Unknown — not stated by the source	55 - 28000 Hz
KaraokeKnown for one	No	Unknown — not stated by the source
Radio1 differ
Supported radio bands	FM	FM
Preset stations quantityDiffers	50	30
Radio Data System (RDS)Known for one	Yes	Unknown — not stated by the source
RDS featuresKnown for one	CT, PS, PTY, RT	Unknown — not stated by the source
Displayidentical
Display typeKnown for one	Unknown — not stated by the source	LCD
Networkidentical
Wi-Fi	No	No
Ports & interfacesidentical
USB port	Yes	Yes
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	1
Headphone outputs	1	1
Headphone connectivityKnown for one	3.5 mm	Unknown — not stated by the source
Performanceidentical
MP3 playback	Yes	Yes
Card reader integrated	No	No
Disc types supportedKnown for one	Unknown — not stated by the source	CD, CD-R, CD-RW
Playback disc formats	CD audio	CD audio
Audio formats supported	MP3, WMA	MP3, WMA
Ergonomicsidentical
CD playerKnown for one	Unknown — not stated by the source	Yes
Remotely operated	Yes	Yes
EqualizerKnown for one	Yes	Unknown — not stated by the source
Alarm functionKnown for one	Yes	Unknown — not stated by the source
Poweridentical
Power sourceKnown for one	Unknown — not stated by the source	AC
Power consumption (typical)Known for one	Unknown — not stated by the source	16 W
Power consumption (standby)Known for one	Unknown — not stated by the source	0.3 W
Input frequencyKnown for one	Unknown — not stated by the source	50 Hz
Input voltageKnown for one	Unknown — not stated by the source	230 V
Weight & dimensionsidentical
Rear speaker weightKnown for one	Unknown — not stated by the source	4.3 kg
Main unit dimensions (WxDxH)Known for one	Unknown — not stated by the source	215 x 348 x 110 mm
Main unit weightKnown for one	Unknown — not stated by the source	5.7 kg
Packaging contentidentical
Remote control included	Yes	Yes
ManualKnown for one	Yes	Unknown — not stated by the source
Other features1 differ
Apple docking compatibilityDiffers	iPad, iPhone	iPod
AntennaKnown for one	Yes	Unknown — not stated by the source
FM radioKnown for one	Yes	Unknown — not stated by the source
Headphone outKnown for one	Yes	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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