Nilfisk-ALTO 3.4 user manual F B e s 2, 4 6 H z, Crossover frequency, Phase

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Each filter has the following editable parameters:

Type of filter

Allows to choose three different types of filter and different attenuation slopes:

Butterworth (But) at 6, 12, 18 or 24dB per octave,

Bessel (Bes) at 12, 18 or 24dB per octave,

Linkwitz-Riley(LR) a 12, 24 or 48dB per octave.

By setting the Thru value, the filter is disabled and the signal passes without its frequency being altered.


O P 1	L P F B e s 2 4
2 k 0 0 H z		0

Crossover frequency

Allows to choose the filter cutoff frequency.

O P 1	L P F	T h r u
1 k 4 6 H z		0

Phase

Allows fine control (in 5 steps) of the signal's phase.

The effect of this control is summed with that of the Output Polarity function (0 ~ 180 ).

In this way it's possible to adjust the phase of each individual output with 5 steps through a full 360 .

Note: this control is only in the Low-Pass Filter window.

O P 1	L P F	T h r u
1 k 0 0 H z		1 8 0

The values can be set in the following ranges:

XOVER

		NAME	TYPE	SLOPE	FREQ	PHASE

		Thru

		But	Butterworth	6, 12, 18, 24 dB/oct
	LPF				15.6Hz ~ 16KHz	0 ~ 180 (Stp 5 )
	LPF	Bes	Bessel	12, 18, 24 dB/oct	15.6Hz ~ 16KHz	0 ~ 180 (Stp 5 )
		Bes	Bessel	12, 18, 24 dB/oct

		LR	Linkwitz-Riley	12, 24, 48 dB/oct

		Thru

		Hish 6	Butterworth	6, 12, 18, 24 dB/oct
	HPF				15.6Hz ~ 16KHz
	HPF	Hish 12	Bessel	12, 18, 24 dB/oct	15.6Hz ~ 16KHz
		Hish 12	Bessel	12, 18, 24 dB/oct

		Notch	Linkwitz-Riley	12, 24, 48 dB/oct

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Contents MAXIDRIVE3.4 Important Safety Instructions Safety Related SymbolsPower Supply External ConnectionPreface Table of Contents Introduction Rear Panel Getting Started Configuration of the systemOutputs Inputs3 B 2 4 S 5 2 x 2 W + 2 M a 3 5 B 2 4 2 x 3 W Adjusting the input signalA d P r e s e t 2 x 3 W P u t I nSystem configuration 3 B 2 4 S 5 2 x 2 W + 2 M a First SetupA G a I N D B A & B G a I NType of Preset 3 B 2 4 S 5 2 x 2 W + 2 M a Number Of Presets 3 B 2 4 S 5 2 x 2 W + 2 M aName of the Preset 3 B 2 4 S 5 2 x 2 W + 2 M a ExampleMenu MAP Configuration Description Preset Modifications 1 3 B 2 4 S 5 2 x 2 W + 2 M aPreset Menu System Protection 3 B 2 4 S 5 2 x 2 W + 2 M aC a R D O r e P r e s e t 2 x 2 W + 2 M a Store & Naming PresetO r e P r e s e t O p e r a H a l l E s e t N a m i n W + 2 M aDump Out Preset T P r e s e t 2 W + 2 M aIncoming Dump C o m i n g D u m p N o r e C e p t Delay Menu L a Y P u t D e l a yM S T p u t2 u S Edit menuInput Gain D B I NP u t Input EQCentre Frequency / Cutoff Frequency BandwidthGain V e r R u0 0 H z F B e s 2 Phase4 6 H z Crossover frequencyOutput Gain Output EQEditing values are between +6dB ~ -30dB, with 0.5dB steps Output PolL a R I T Y R m aV e r s e Ganging Submenu Utility MenuN g i n g P u t G a n g i n gInput Ganging M . T h r e s h . U n i t T p u t G a n g i n gM P e r a t u r e U n i t Units SubmenuT u p P u t S e l e c t G i t a l A l o gT p u t M e t e r s E M u t e S t M u t e K e U p R m a l T e M p e r a t u r eD C o n t r a s t Lock SubmenuC k 2 2 W + 2 M a 3 B 2 4 S 5Total Partial L O C K A 1 3 B 2 4 S 5 2 2 W + 2 M aS s w o r d S s w o r d R DR m a t R d COMM. Setup SubmenuR m a t C a r d R m a t t i n g R m a t D o n e M m . S e t u pConnections Inputs a & B, Digital IN, RS485Inputs a & B Outputs 1 ~ 6, RS485 OUT Factory Preset ConfigurationRS232 Special attentions for RS232 interfaceOrganization Signal PowerAudio Mixer Signal Power MAXIDRIVE3.4A135 B246 3-WAY Stereo 2X2W High Left High Right Signal Power Audio MixerA1324 S56 4-WAY4 Mono + 2 Mono AUX 4W+2MAX To / from RS232 Communications PC & one or more MAXIDRIVE3.4 connectionTechnical Specifications Warranty Registration Card Return NoticeTerms and Conditions Seikaku Technical Group Limited