Harman-Kardon operation manual 223/223XL -234/234XL 4-Way Crossovers

4											2-Way, 3-Way
					223/223XL -234/234XL 4-Way Crossovers
1	2	3	4	5	6	7	8	9	10	11	12

		CHANNEL ONE																					CHANNEL TWO
	0			240			2.4k			-10				-10				-10				0			240				2.4k			-10				-10				-10
		140			350	1.4k		3.5k																140			350	1.4k		3.5k
-6		+6						-30				-30				-30				-6			+6								-30				-30			-30
		70			680	700					0				0					0				70			680	700						0			0				0
								6.8k															40 Hz								6.8k
		40 Hz									INV				INV					INV															INV			INV			INV
					x10																						x10
-12	dB	+12	45	Hz	960	450	Hz	9.6k	-	dB	+6		-	dB	+6		-	dB	+6		-12	dB	+12	45	Hz	960		450	Hz	9.6k	-	dB	+6		-	dB	+6		-	dB	+6
	GAIN		XOVER FREQ			XOVER FREQ				GAIN				GAIN				GAIN				GAIN		XOVER FREQ				XOVER FREQ				GAIN				GAIN				GAIN
	INPUT	LOW CUT	LOW/LOW-MID			LOW-MID/HIGH-MID				LOW OUTPUT			LOW-MID OUTPUT							MONO								HIGH-MID/HIGH							HIGH-MID OUTPUT					HIGH OUTPUT
	INPUT	LOW CUT	LOW/MID			MID/HIGH				LOW OUTPUT				MID OUTPUT			HIGH OUTPUT			STEREO		INPUT	LOW CUT	LOW/MID				MID/HIGH			LOW OUTPUT					MID OUTPUT			HIGH OUTPUT
		13			14						15				16				17 18 19				20				21								22			23			24

STEREO 3-WAY MODE

In 3-way stereo operation 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]	& [7]	INPUT GAIN	Controls the INPUT level with +/- 12 dB of gain.
[13] & [20]		LOW CUT	Switch for selecting the 40 Hz high pass filter. An LED indicates the selec-
			tion.
[2]	& [8]	LOW/MID	Selects crossover point between LOW and MID frequencies.
[14] & [21]		X10 LED	Indicates that the LOW/MID crossover frequency range is 450 Hz to 9.6 kHz.
[3]	& [9]	MID/HIGH	Selects crossover point between MID and HIGH frequencies.
[4]	& [10]	LOW OUTPUT	Controls the Low Frequency output level with a range of -∞to +6 dB.
[15] & [22]		PHASE INVERT	Switch for reversing the polarity on the Low Output. An LED indicates the
			selection.
[5]	& [11]	MID OUTPUT	Controls the Mid Frequency output with a range of -∞to +6 dB.
[16] & [23]		PHASE INVERT	Switch for reversing the polarity on the Mid Output. An LED indicates the
			selection.
[6]	& [12]	HIGH OUTPUT	Controls the High Frequency output with a range of -∞to +6 dB.
[17] & [24]		PHASE INVERT	Switch for reversing the polarity on the High output. An LED indicates the
			selection.
[19]		STEREO	LED indicating stereo mode operation.

MONO 4 -WAY MODE

In 4-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 4-way mode. LEDs are disabled for controls which are non-functional in mono 4-way mode.

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

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