Harman-Kardon operation manual 223/223XL -234/234XL5, X10 LED

2-Way, 3-Way

4-Way Crossovers

223/223XL -234/234XL5

dbx 223/223XL Front Panel

Note: There are no front panel differences between the 223 and the 223XL. Therefore the 223XL is shown below, representing both the 223 and the 223XL.

	1		2			3				4				5			6				7				8
		CHANNEL ONE													CHANNEL TWO
	0		240			-10				-10				0			240				-10				-10
		140		350												140			350
-6		+6		-30									-6		+6				-30
		70		680				0	-30			0			40 Hz	70			680			0	-30			0
		40 Hz							INV			INV										INV				INV
				x10	-				-										x10	-				-
-12	dB	+12	45 Hz	960		dB	+6			dB	+6		-12	dB	+12	45	Hz	960			dB	+6			dB	+6
	GAIN		XOVER FREQ			GAIN				GAIN				GAIN		XOVER FREQ					GAIN				GAIN
	INPUT	LOW CUT	LOW/MID			LOW OUTPUT						MONO				MID/HIGH					MID OUTPUT				HIGH OUTPUT
	INPUT	LOW CUT	LOW/HIGH		LOW OUTPUT				HIGH OUTPUT			STEREO		INPUT	LOW CUT	LOW/HIGH				LOW OUTPUT				HIGH OUTPUT
		9		10					11		12 13 14				15				16			17				18
STEREO 2-WAY MODE

In 2-way stereo mode the controls are marked BELOW the horizontal blue line.

Channel One and Channel Two functions are identical in the stereo mode. LEDs are disabled for controls which are non-functional in this mode.

[1]	& [5]	INPUT GAIN	Controls the INPUT level with +/- 12 dB of gain.
[9]	& [15]	LOW CUT	Switch for selecting the 40 Hz high pass filter. An LED indicates
			the selection.
[2]	& [6]	LOW/HIGH	Selects crossover point between the LOW and HIGH outputs.
[10] & [16]		X10 LED	Indicates that the LOW/HIGH crossover frequency range is 450
			Hz to 9.6 kHz.
[3]	& [7]	LOW OUTPUT	Controls the Low Frequency output level with a range of -∞to +6
			dB.
[11] & [17]		PHASE INVERT	Switch for reversing the polarity on the Low Output. An LED indi-
			cates the selection.
[4]	& [8]	HIGH OUTPUT	Controls the High Frequency output with a range of -∞to +6 dB.
[12] & [18]		PHASE INVERT	Switch for reversing the polarity on the High Output. An LED indi-
			cates the selection.
[14]		STEREO	LED indicating stereo mode operation.

MONO 3 -WAY MODE

In 3-way mono operation the controls are marked ABOVE the horizontal blue line. Front panel controls not described in this section are not active in mono 3-way mode. LEDs are disabled for controls which are non- functional in this mode.

[1]	INPUT GAIN	Controls the input level with +/- 12 dB of gain.
[9]	LOW CUT	Switch for selecting the 40 Hz high pass filter. An LED indicates
		the selection.
[2]	LOW/MID	Selects crossover point between LOW and MID frequencies.
[10]	X10 LED	Indicates that the LOW/MID crossover range is 450 Hz to 9.6 kHz.
[6]	MID/HIGH	Selects the crossover point between MID and HIGH frequencies.
[16]	X10 LED	Indicates that the MID/HIGH crossover frequency range is 450 Hz
		to 9.6 kHz
[3]	LOW OUTPUT	Controls the LOW frequency output level with a range of -∞to +6
		dB.
[11]	PHASE INVERT	Switch for reversing the polarity on the Low Output. An LED indi-
		cates that the phase is reversed.
[7]	MID OUTPUT	Controls the MID frequency output level with a range of -∞to +6
		dB.
[17]	PHASE INVERT	Switch for reversing the polarity on the Mid Output. An LED indi-
		cates that the phase is reversed.
[8]	HIGH OUTPUT	Controls the HIGH frequency output level with a range of -∞to +6
		dB.
[18]	PHASE INVERT	Switch for reversing the polarity on the High Output. An LED indi-
		cates that the phase is reversed.
[13]	MONO	LED indicating mono mode operation.

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