Sony XM-ZR704 review
Model features: 700W max power, 70W x 4 RMS into 4 ohms, 80W x 4 RMS into 2
ohms, 160W x 2 RMS into 4 ohms, variable 50-300Hz HPF/LPF on front and rear
channels.
Subsonic Filter - Independent variable 12 dB/Oct 6-70Hz sub-sonic HPF (High
Pass Filter) for front and rear channels.
High Level Input with Sensing Power On - Direct connection (High Level
Input)can be made with the speaker output of your car audio unit if it is
not equipped with RCA line output. High Level Sensing power on feature
allows the unit to be activated without the need for remote connection.
Bass Boost - Variable 0-10 dB 40Hz bass boost provides additional bass
response at lower frequencies (rear channels only).
Variable HPF/LPF for front and rear - Variable 12 dB/Oct 50-300Hz HPF
(High-Pass Filter) and LPF (Low-Pass Filter) for front and rear channels.