SRS Labs SR850 manual Ofsl ?, Sync ?

Remote Programming

	Time constants greater than 30s may NOT be set if the
	harmonic x ref. frequency (detection frequency) exceeds 200 Hz. Time
	constants shorter than the minimum time constant (based upon the filter
	slope and dynamic reserve) will set the time constant to the minimum
	allowed time constant. See the GAIN/TC menu section.
OFSL (?) {i}	The OFSL command sets or queries the low pass filter slope. The
	parameter i selects 6 dB/oct (i=0), 12 dB/oct (i=1), 18 dB/oct (i=2) or
	24 dB/oct (i=3).
SYNC (?) {i}	The SYNC command sets or queries the synchronous filter status. The
	parameter i selects Off (i=0) or synchronous filtering below 200 Hz (i=1).
	Synchronous filtering is turned on only if the detection frequency (refer-
	ence x harmonic number) is less than 200 Hz.

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