Alpine DVA-9965 owner manual About the Crossover, 23-EN, Way mode

About the Crossover

Crossover:

This unit is equipped with an active crossover. The crossover limits the frequencies delivered to the outputs. Each channel is controlled independently. Thus, each speaker pair can be driven by the frequencies for which they have been optimally designed.

The crossover adjusts the HPF (high pass filter) or LPF (low pass filter) of each band, and also the slope (how fast the filter rolls off the highs or lows). Adjustments should be made according to the reproduction characteristics of the speakers. Depending on the speakers, a passive network may not be necessary. If you are unsure about this point, please consult your authorized Alpine dealer.

2 way mode

	Cut-off frequency		Slope
	(1/3 octave steps)
					Level
	HPF	LPF	HPF	LPF
Low range	----	20 Hz -	----	FLAT, 6,	0 to
				12, 18,
speaker		200 Hz			−12 dB
				24 dB/oct
Rear high	20 Hz -		FLAT, 6,		0 to
range		----	12, 18,	----
	200 Hz				−12 dB
speaker			24 dB/oct
Front high	20 Hz -		FLAT, 6,		0 to
range		----	12, 18,	----
	200 Hz				−12 dB
speaker			24 dB/oct

Low range High range

(Different from actual display)

3 way mode

	Cut-off frequency		Slope
	(1/3 octave steps)
					Level
	HPF	LPF	HPF	LPF
Low range	----	20 Hz -	----	FLAT, 6,	0 to
				12, 18,
speaker		200 Hz			− 12 dB
				24 dB/oct
Mid range	20 Hz -	1 kHz -	FLAT, 6,	FLAT, 6,	0 to
			12, 18,	12, 18,
speaker	200 Hz	20 kHz			−12 dB
			24 dB/oct	24 dB/oct
High range	1 kHz -	----	FLAT*1	----	0 to
			6, 12, 18,
speaker	20 kHz				−12 dB
			24 dB/oct

*1 Only when selecting USER'S in “Setting the Response Slope for the High Range Speaker” (page 37).

Low range Mid range High range

(Different from actual display)

Level adjusting

(0 to - 12 dB)

Output frequency range

			Slope FLAT
		Slope adjusting
20 Hz		(Different from actual display)
	HPF cut-off	LPF cut-off
	frequency	frequency

•HPF (high pass filter): Cuts the lower frequencies and allows the higher frequencies to pass.

•LPF (low pass filter): Cuts the higher frequencies and allows the lower frequencies to pass.

•Slope: The level change (in dB) for a frequency change of one octave.

•The higher the slope value, the steeper the slope becomes.

•Adjust the slope to FLAT to bypass the HP or LP filters.

•Do not use a tweeter without the HPF on or set to a low frequency, as it may cause damage to the speaker due to the low frequency content.

•You cannot adjust the crossover frequency higher than the HPF or lower than the LPF.

•Use the recommended crossover frequencies of the speakers being used for setting the crossover. Adjusting to a frequency outside that recommended range might cause damage to the speakers.

For the recommended crossover frequencies of Alpine speakers, refer to the respective Owner's Manual.

Alpine is not responsible for damage or malfunction of speakers caused by improper crossover settings.

23-EN