Crescendo Audio Symphony S2

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So I just recently bought a Crescendo Audio Symphony S2 and a pair of the Crescendo  Mezzo SQ2 6.5" Components. Just thoughts on how the performance is on these reviews etc. I can barely find anything on these items from crescendo.

mezzo 6.5’s

Power rating RMS	150 Watts
Sensitivity	90.8 dB 1W/1m
Frequency response	45Hz - 22KHz
Impedance	4 Ohm
Crossover Slope	2 x 18 dB L/H
Crossover Frequency	3400 hz

 

S2 Rated Power output @ 13.8v (RMS):

2ohm: 300w x2
4ohm: 190w x2
Bridged 4ohm: 600w