Yamaha MCR-550 Home audio micro system vs Yamaha MCR-840 Home audio micro system Black

Comparison of MCR-550, MCR-840

31 specifications	A Yamaha MCR-550 Home audio micro system Model MCR-550 View product	B Yamaha MCR-840 Home audio micro system Black Model MCR-840 View product
Design1 differ
Product colourDiffers	Black, Silver	Black
Number of optical discsKnown for one	1 discs	—Unknown — not stated by the source
Multimediaidentical
RMS rated powerKnown for one	64 W	—Unknown — not stated by the source
Number of speakersKnown for one	2	—Unknown — not stated by the source
Woofer diameterKnown for one	12 cm	—Unknown — not stated by the source
Tweeter diameterKnown for one	3 cm	—Unknown — not stated by the source
ImpedanceKnown for one	6 Ω	—Unknown — not stated by the source
Signal-to-Noise Ratio (SNR)Known for one	85 dB	—Unknown — not stated by the source
Peak Music Power Output (PMPO)Known for one	110 W	—Unknown — not stated by the source
Frequency rangeKnown for one	55 - 28000 Hz	—Unknown — not stated by the source
Ports & interfacesidentical
USB 2.0 ports quantityKnown for one	1	—Unknown — not stated by the source
AUX inKnown for one	Yes	—Unknown — not stated by the source
Performanceidentical
Disc types supportedKnown for one	CD	—Unknown — not stated by the source
Audio formats supportedKnown for one	MP3, WMA	—Unknown — not stated by the source
LED indicatorsKnown for one	Yes	—Unknown — not stated by the source
MP3 playbackKnown for one	—Unknown — not stated by the source	Yes
Ergonomicsidentical
Volume controlKnown for one	Rotary	—Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	4.8 kg	—Unknown — not stated by the source
Subwoofer weightKnown for one	—Unknown — not stated by the source	4.3 kg
Packaging contentidentical
Remote control includedKnown for one	Yes	—Unknown — not stated by the source
Other featuresidentical
Speaker widthKnown for one	15.4 cm	—Unknown — not stated by the source
Speaker depthKnown for one	28.7 cm	—Unknown — not stated by the source
Speaker heightKnown for one	27.4 cm	—Unknown — not stated by the source
CD TextKnown for one	Yes	—Unknown — not stated by the source
Dimensions (WxDxH)Known for one	215 x 309 x 125 mm	—Unknown — not stated by the source
Power requirementsKnown for one	100-240V	—Unknown — not stated by the source
Apple docking compatibilityKnown for one	—Unknown — not stated by the source	iPod
DVD Audio playbackKnown for one	—Unknown — not stated by the source	Yes
Subwoofer dimensions (WxHxD)Known for one	—Unknown — not stated by the source	176 x 318 x 305 mm

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.