Comparison Mystery MC-540 vs Mystery MJ-550

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	Mystery MC-540	Mystery MJ-550
	from $32.16 up to $38.44 Outdated Product	from $28.80 up to $34.44 Outdated Product
all specs only differences
TOP sellers	Find prices on Amazon.com Find prices on eBay.com	Find prices on Amazon.com Find prices on eBay.com
Application area	car	car
Type	component	component
Size	5.25" (13 cm)	5.25" (13 cm)
Number of bands	2	2
Specs
Rated power	50 W	50 W
Max. power	150 W	150 W
Frequency range	60 – 21000 Hz	60 – 21000 Hz
Impedance	4 Ohm	4 Ohm
Sensitivity	91 dB	91 dB
External crossover
Size
Tweeter size	25 mm	25 mm
Woofer size	133 mm	133 mm
Added to E-Catalog	june 2012	may 2012

External crossover

Crossover is part of acoustic system that divides the overall signal into separate frequency bands fed to the corresponding speakers (for more details, see "Bands"). All multi-band speakers (component and coaxial, see "Type") have their own crossover; it is usually located directly in the speaker body. However, in some models, usually the most advanced ones, the crossover can be made as a separate device, in its own body. External crossovers are considered to provide better sound quality and introduce less distortion into it; in addition, they often provide the ability to fine-tune the sound.