JVC KD-R551E car media receiver Black vs JVC KD-R751E car media receiver Black

Comparison of KD-R551E, KD-R751E

62 specifications	A JVC KD-R551E car media receiver Black Model KD-R551E View product	B JVC KD-R751E car media receiver Black Model KD-R751E View product
Performanceidentical
Signal-to-Noise Ratio (SNR)Known for one	—Unknown — not stated by the source	105 dB
Ready for iPodKnown for one	—Unknown — not stated by the source	Yes
Volume controlKnown for one	—Unknown — not stated by the source	Rotary
Multimediaidentical
DVD Audio playbackKnown for one	No	—Unknown — not stated by the source
Audio systemKnown for one	MOSFET	—Unknown — not stated by the source
Displayidentical
LED backlightKnown for one	Yes	—Unknown — not stated by the source
Ports & interfaces1 differ
Line outputs (RCA)Differs	1	2
Weight & dimensionsidentical
WeightKnown for one	1.2 kg	—Unknown — not stated by the source
Technical detailsidentical
Connector(s)Known for one	AUX, USB	—Unknown — not stated by the source
Power requirementsKnown for one	USB 1A	—Unknown — not stated by the source
Charger compatibilityKnown for one	—Unknown — not stated by the source	Mobile phone, MP3
Connector typeKnown for one	—Unknown — not stated by the source	AUX, USB
Key illumination colourKnown for one	—Unknown — not stated by the source	Multi

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.