Galaxy Audio DSPOT DS-EQ230 User manual

USER’S MANUAL
DS-EQ230
Dual Channel 30 Band EQ
USB
USB
(482mm)
19"
DIGITAL
DIGITAL
®
DS -EQ 230 L IN R IN L OUT R OUT L COMP R COMP

1
Contents
Contents
Introduction
Introduction
Thank you for choosing a Galaxy DSPOT Digital Signal Processor. You have joined
hundreds of thousands of other satisfied Galaxy customers. Since 1977 Galaxy Audio’s
professional experience in design and manufacturing ensure our products' quality,
performance and reliability.
For the most up to date manual and information
visit www.galaxyaudio.com.
Introduction..........................................................................................1
Safety Instructions................................................................................ 2
Overview.......................................................................................3
Getting Started with Front Panel Controls........................................ 4 - 27
Using the PC Interface.................................................................. 28 - 34
Volume Controls Table................................................................. 35 & 36
Specifications..................................................................................... 37

2
Safety Instructions
Safety Instructions
!
IMPORTANT SAFETY INSTRUCTIONS !
READ these instructions.
KEEP these instructions.
HEED all warnings.
FOLLOW all instructions.
DO NOT use this apparatus near water.
CLEAN ONLY with dry cloth.
DO NOT block any ventilation openings. Install in accordance with the manu-
facturer's instructions.
DO NOT install near any heat sources such as radiators, heat registers, stoves,
or other apparatus (including amplifiers) that produce heat.
DO NOT defeat the safety purpose of the polarized or grounding-type plug. A
polarized plug has two blades with one wider than the other. A grounding type
plug has two blades and a third grounding prong. The wider blade or the third
prong are provided for your safety. If the provided plug does not fit into your
outlet, consult an electrician for replacement of the obsolete outlet.
PROTECT the power cord from being walked on or pinched, particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
ONLY USE attachments/accessories specified by the manufacturer.
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11.
This symbol indicates that dangerous voltage
Constituting a risk of electric shock is present
within this unit.
This symbol indicates that there are important
Operating and maintenance instructions in the
Literature Accompanying This Unit
UNPLUG this apparatus during lightning storms or when unused for long periods of
time.
REFER all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power-supply cord or plug is dam-
Aged, liquid has been spilled or objects have fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally, or has been
dropped.
DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled
with liquids, such as vases, on the apparatus.
USE only with a cart, stand, tripod, bracket, or table
Specified by the manufacturer, or sold with the
Apparatus. When a cart is used, use caution when
moving the cart/apparatus combination to avoid
injury from tip-over.
Remove the batteries from the receiver if the system will not be used for a long
period of time. This will avoid any damage resulting from a defective, leaking
battery.
DO NOT throw used batteries into a fire. Be sure to dispose of or recycle used
batteries in accordance with local waste disposal laws.
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Overview
®
DS -EQ 23 0 L IN R IN L OUT R OUT L COMP R COMP
Described below are the functions of the front panel control buttons and encoders for the
DS-EQ230.
1 2 3456 7 8 9 10 11 12 13
1 - LCD Display
2 - Navigation/Parameter 1 Key
3 - Parameter 2 Key
4 - Enter Key
5 - Escape Key
6 - Utility Key
7 - Parameter 3 Key
8 - Left Input Edit/Mute Key
9 - Right Input Edit/Mute Key
10 - Left Output Edit/Bypass Key
11 - Right Output Edit/Bypass Key
12 - Left Comp Edit/Bypass Key
13 - Right Comp Edit/Bypass Key
3

As soon as the DS-EQ230 is turned ON the device model name will appear in the LCD screen:
A status bar will show the progress of the DS-EQ230 initialization process:
The DS-EQ230 has eight factory pre-set: “Default Flat”, “Default Classic”, “Default Disco”,
“Default Jazz”, “Default Pop”, “Default RnB”, “Default Rock” and “Default Vocal”.
After the initialization, the DS-EQ230 will show on the LCD the first of the embedded preset, or
the last one selected prior to the unit being turned off.
First time activation will default to the first of the preset:
Getting Started
DS-EQ230
DS-EQ230
DS-EQ230
Equalizer 30+30
Default Flat
Getting Started
4

• Encoders and ENTER, ESC buttons
The DS-EQ230 is equipped with 3 Relative Encoders, “NAV/PM1”, “PM2” and “PM3”. These
encoders allow you to navigate the user interface and edit sections of the processor. They allow
the user to navigate within the screen for the selection of sub-menus, pages and parameters and to
select the values to be assigned during the editing operations.
The “ENTER” and “ESC” buttons allow the user to confirm or NOT confirm the operations
performed by the encoders.
• UTILITY, LIN/RIN and LOUT/ROUT/LCOMP/RCOMP buttons
The UTILITY button allows the User to enter the Sub-menus and set the general characteristics of
the Equalizer. The LIN and RIN buttons allow the User to enter the Editing Menus of the Equalizer’s
Input Channels or to MUTE the Equalizer’s Outputs.
LOUT/ROUT and LCOMP/RCOMP buttons, allow the User to access UTILITY functions related to
the Equalizer (LOUT/ROUT) or to enter the Editing Menus of the Equalizer’s Compressors Section
(LCOMP/RCOMP).
The BYPASS functions allows to bypass the Equalizer setting (LOUT/ROUT) or the Compressor
setting (LCOMP/RCOMP).
As understood, the LIN/RlN as well as the LOUT/ROUT and LCOMP/RCOMP buttons have double
functions dependent on the push and hold time.
When the LIN/RIN buttons are pushed and held for more than one second, Input Channels LIN or
RIN are either muted or unmuted. The red LED will illuminate when the Channel is muted. When
the “MUTE” LED is OFF, then the related Input Channel is UN-MUTED.
A momentary push of the LIN/RIN buttons enters the Editing Mode for the Equalizer’s Channels
(see later for the Equalizer’s Channel Editing details).
The blue “EDIT” LED will now be ON.
When the LOUT/ROUT buttons are pushed and held for more than one second, the Equalizer will
go into bypass and the red LED will illuminate indicating bypass. To remove from bypass push and
hold again for more than one second, the red LED will turn off indicating the Equalizer is now in
circuit.
When the LCOMP/RCOMP buttons are pushed and held for more than one second, the
Compressor will go into bypass and the red LED will illuminate indicating bypass. To remove from
bypass, push and hold again for more than one second. The red LED will turn off indicating the
Compressor is now in circuit.
A momentary push of the LOUT/ROUT buttons enters Utilities’ functions for the Equalizer’s
Channels (see later for the Equalizer’s Utilities Functions details). The blue “UTILITY” LED will
now be ON.
A momentary push of the LCOMP/RCOMP buttons enters the Editing Menu for the Equalizer’s
Compressor Section (see later for the Compressor’s Editing details). The blue “EDIT” LED will
now be ON.
5

• DS-EQ230 Menu and Sub-Menu Structures
As stated above, the start-up default screen is the following factory preset:
From this point, sub-menus are accessed using the “UTILITY”, “LOUT/ROUT”, “LCOMP/RCOMP”,
“ENTER” and “ESC” buttons and all parameters and values are navigated by the “NAV/PM1”,
“PM2” and “PM3” encoders. Please refer to the following menu structures:
DS-EQ230
Default Flat
• Menu "UTILITY" [access by pushing the "UTILITY" button]
From the “Default Screen”, it is possible access the “UTILITY” menu pushing the “UTILITY” button
and the Sub-Menus pages can be selected just rotating clockwise and counter-clockwise the
“NAV/PM1” encoder.
Once selected the sub-menu page, using the “ENTER” button can be accessed the Sub-Menus
pages, again “scrollable” using the “NAV/PM1” encoder and accessible for the parameters’ editing
pushing again the “ENTER” button.
Through the “ESC” button, it is any time possible to go back to the action and page preceding the
“ENTER” button use.
Once inside the Sub-Menus pages, the several options can be scrolled and using the “PM2” or
“PM3” encoders and selected/confirmed pushing the “ENTER” button.
Note: In every Sub-Menu the option currently selected/running will have an asterisk “*” showing to
the right of the description on the LCD screen
.
Options that are not selected/running will be displayed with NO Asterisk.
Pushing the ENTER button on an unselected option will mean an asterisk will then appear and this
option will now take over as the currently selected/running option.
System Utilities Sub-menu - this sub-menu allows to access several operations related to the
DS-EQ230 Start Up and General Configuration:
UTILITY MENU
- System Utilities -
6

From the “System Utilities Sub-menu”, pushing “ENTER” and then using the “NAV/PM1” encoder
for scrolling will give access to the following pages:
- Power-On Procedure: this gives you the ability to select the option that will apply when
the DS-EQ230 powers up after being switched on:
By pressing ENTER and rotating the “PM2” or “PM3” encoder, it is possible to choose between
two options: “Fade In On” or “Fade In Off".
The currently running option will be displayed with an asterisk to the right of the option description.
To change the option simply ENTER on the option not displaying the asterisk and that option
Will become active and an asterisk will now appear to the right of the option description.
SYSTEM UTILITY
- Power-On Procedure -
The following two options are available:
FADE-In = Off ... when the DS-EQ230 is turned on, all Outputs regardless of their status before
The Unit was switched off, will be MUTED or UNMUTED automatically. Meaning the DS-EQ230
will have no active Outputs or active Outputs, during the start-up process, depending from the
Outputs’ previous status.
FADE-In = On ... when the DS-EQ230 is turned on, all Outputs not previously muted before the
Unit was switched off will be active. Meaning the DS-EQ230 outputs will be controlled by a volume
ramp to avoid any sudden sound.
If the option “Fade-In=On” is selected, the screen will show the following:
Delay Time/Distance: this page allows you to select the measurement unit to be used for the
Delays: Time (in milliseconds “ms”) or Distance (in meters “m”):
By pressing ENTER and rotating the “PM2” or “PM3” encoder, it is possible to select the
measurement unit to be used for the delay, which will be confirmed by pushing the ENTER button.
The following screen shows the selected delay measurement is Time (milliseconds):
Power-On Procedure
Fade-In: On
SYSTEM UTILITY
- Delay Units -
DPA-240A
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*
Delay Units
Unit : Time (ms) *
7

Ramps on changes: this page allows you to activate or de-activate Fading-in and Fading-out
ramps on the input/output volumes when any parameter changes:
When connected to the DS-EQ230 by the PC remote control software, it is possible to request
sudden parameter changes where the difference between the old parameter and the new one
Can cause unwanted “click” noises (big differences in volume changes) or “bumps” (big
differences in Hp/lp filters cutting frequency values) as the DSP reconfigures.
The Fading-In and Fading-Out ramps eliminate any potential clicks and bumps.
This function can be de-activated when the unit needs to be used in “live” conditions and small
parameter adjustments are requested “on the fly” during live performance.
The following screen shows the Fading ramps function is Off, and therefore de-activated:
Software Version: this page allows you to confirm the Software Version running on the
DS-EQ230:
DPA-240A
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Ramps on Changes
DPA-240A
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SYSTEM UTILITY
- Ramps on Changes -
SYSTEM UTILITY
- Software Version -
DPA-240A
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Ramps on changes
Ramp : Off *
Program Utilities Sub-menu - this sub-menu allows you to access several options related to
the DS-EQ230 operating mode and to manage the presets stored and recallable within the Unit:
DPA-240A
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UTILITY MENU
- Program Utilities -
8

By pressing the ENTER button and then using the “NAV/PM1” encoder the following pages can be
accessed:
Recall a Program: this page allows the Loading of a preset program.
The DS-EQ230 contains 8 Factory presets occupying the first 8 positions of the Preset list which
setting is shown in the “A-Appendix”.
The 8 Factory presets are the following
1. Default Flat
2. Default Classic
3. Default Disco
4. Default Jazz
5. Default Pop
6. Default RnB
7. Default Rock
8. Default Vocal
You can store up to 24 presets in the DS-EQ230 memory starting from the location 09 up to the
location 32.
Through the “Recall a Program” page, the Factory and the available user’s preset can be recalled
for the DS-EQ230 filters’ setting:
By pressing ENTER and rotating the “PM2” or “PM3” encoders, it is possible to scroll through all
current available factory and user presets.
If NO USER PRESETS are stored yet, the screen will show ONLY the factory presets:
If presets have previously been stored by the user, any one of them can be recalled starting from
the location 09:
DPA-240A
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Recall a Program
01: Default Flat
[ENTER] to Recall
09: PRESET1
PROGRAM UTILITY
- Recall a Program -
By using the “PM2” or “PM3” encoder it is possible to scroll through the stored presets. Once the
desired preset appears on the screen select it by pressing the “ENTER” button and this will force
the DS-EQ230 to begin to load this selected preset and the following transitory screen will appear:
DS-EQ230
1x2 WAY X-OVER
9

Once loaded, the DS-EQ230 will exit to the “Recall a Program” screen automatically and the above
screen will disappear:
Note: At any time it is possible to quit the recalling action by pressing the “ESC” button.
Save a Program: this page allows you to store a new preset in the DS-EQ230’s memory:
By pressing the ENTER button and rotating the “PM2” or “PM3” encoder, it is possible to scroll
through the previously saved presets and the available empty locations (identified by “Empty
Memory”).
If no user presets are stored, the “Save a Program” screen will show empty memory locations for
all 09-32 presets as shown in the example below for location 10:
When storing an edited configuration for the DS-EQ230, select the location for a preset from the 24
available by using the “PM2” or “PM3” encoders.
Once the desired location appears on the screen press ENTER again to reach the “Set Program
Name” page.
In this page the User can enter a Preset Name (up to 16 Characters) by using the “PM2” or
“PM3” encoder to choose a character and the “NAV/PM1” encoder to move between the 16
available locations for the character’s positioning.
The current position of the cursor is shown by a “blinking underscore”.
DPA-240A
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DPA-240A
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Save a Program
10: Empty Memory
PROGRAM UTILITY
- Recall a Program -
DPA-240A
1x2 WAY X-OVER
PROGRAM UTILITY
- Save a Program -
The following is an example of a screen while entering the preset name “Velvet Club” in
location 10:
DPA-240A
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[ENTER] to Save
10: Velvet Club
DPA-240A
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Set Program Name
10: Velvet Club ?
10

To store the Preset Name press the “ENTER” button again.
The above action will take you to the “Enter to Save” page showing the selected location for the
preset and the final edited name:
Pressing “ENTER” again, will store the preset in the selected location with the chosen name and
the following transitory screen will appear on the LCD:
Once the preset is stored, the above screen will disappear returning to the following screen:
If during the Preset Storing process you want to overwrite an existing memory location, select this
location in the “Save a Program” page, then ENTER and you will be asked if you want to overwrite
this preset with the following “[ENTER] to Overwrite” screen displaying the currently stored preset
and location:
If you wish to proceed press “ENTER” again and the DS-EQ230 will go ahead with the “Set
Program Name” page and the subsequent overwrite on completion of the previously described
storing process.
Note: At any time it is possible to quit the storing action by pressing the “ESC” button.
[ENTER] to Save
10: Velvet Club
Saving to Memory . . . . .
10: Velvet Club
DPA-240A
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DPA-240A
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DPA-240A
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PROGRAM UTILITY
- Save a Program -
DPA-240A
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[ENTER] to Save
10: Velvet Club ?
[ENTER] to Save
10: Velvet Club
DPA-240A
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[ENTER] to Overwrite
10: Velvet Club ?
11

By pressing the ENTER button and rotating the “PM2” or “PM3” encoder, it is possible to scroll
through the previously saved presets and the available empty locations (identified by “Empty
Memory”).
If no user presets are stored, the “Delete a Program” screen will show empty memory locations for
all 1-24 presets as shown in the example below for location 10:
If Presets are available they will be shown in the “Delete a Program” page as follows:
By using the “PM2” or “PM3” encoder it is possible to select a preset to be deleted.
Pressing the “ENTER” button on a selected preset will bring up the “[Enter] to Delete]” page
showing the selected preset.
For example, if we want to delete the preset 10, “Velvet Club”, the screen will be the
following:
Confirming the deletion by pressing “ENTER” again, will force the DS-EQ230 to erase the
selected preset and the following transitory screen will appear:
Once the preset is deleted, the above screen will disappear returning to the following screen:
Note: At any time it is possible to quit the deleting action by pressing the “ESC” button.
Delete a Program
10: Empty Memory
Delete a Program
10: Velvet Club
[ENTER] to Delete
10: Velvet Club
Deleting Program . . . . .
10: Velvet Club
DPA-240A
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PROGRAM UTILITY
- Delete a Program -
Delete a Program: this page allows you to delete a preset already stored in the DS-EQ230
memory:
DPA-240A
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PROGRAM UTILITY
- Delete a Program -
12

Interface Utilities Sub-menu - this sub-menu allows you to define the remote control interface
[USB or RS485] to be used for controlling the DS-EQ230 :
From “Interface Utilities”, press “ENTER” to access the Interface Setup.
Interface Setup: this screen allows you to choose the remote control protocol for the
DS-EQ230.
By pressing “ENTER” and then using the PM2 or PM3 encoders, you can choose between the two
possible interfaces (USB or RS485) for the DS-EQ230.
Pressing ENTER on a selected source will make an asterisk appear to the right of the description
on the LCD as in the following example which shows the selected interface as USB.
DPA-240A
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DPA-240A
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DPA-240A
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DPA-240A
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Interface Setup
Source: USB *
UTILITY MENU
- Interface Utilities -
INTERFACE UTILITY
- Interface Setup -
13

Security Sub-menu - this sub-menu allows the User to set the parameters shown, lock the
DS-EQ230 and set a Password, therefore limiting the unit's functions and controls to those who
have only access to the appropriate Password.
Press ENTER and then use the “NAV/PM1” to scroll between options.
Show Parameter: Pressing ENTER from the above menu will access the “Show Parameter” Sub
Menu.
Press ENTER again and use the “PM2” or “PM3” encoders to scroll between the “be shown” and
“not be shown” options. An asterisk will highlight which option is selected.
Choosing the “be shown” option means that once the unit is locked, you cannot access parameter
editing features, but they will be displayed on the LCD screen.
Choosing the “not be shown” option means that once the unit is locked, the parameters will
not be shown at all. With this option, when trying to access a parameter, the following screen
message will appear:
Lock Unit: this sub-menu allows the user to lock the device so no parameters can be edited or
modified.
When the Unit is in an unlocked condition, all parameters will be available for editing. When you
select On, all parameters will be locked and are not available for editing.
When you select lock from the menu, the unit will be locked and the lock menu automatically
exited. The screen will revert to the “Default” showing the current Equalizer’s preset selected and
beside the preset’s name a “keylock” icon indicating that the DS-EQ230 is locked.
DPA-240A
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DPA-240A
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DPA-240A
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DPA-240A
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DPA-240A
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DPA-240A
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Parameter will
Not be shown *
DPA-240A
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DPA-240A
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Lock Unit
Lock : On *
UTILITY MENU
- Security Utilities -
DPA-240A
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SECURITY UTILITY
- Show Parameter -
DPA-240A
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DPA-240A
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SECURITY UTILITY
- Lock Unit -
14

User Password: from the “User Password” sub-menu:
Press “ENTER” to access the “User Password” page:
Using the “PM2” or “PM3” encoders to choose a character and the “NAV/PM1” encoder to move
between available locations you can enter a 6 Character Password Name.
The current position of the cursor for the characters to be entered is shown by a “blinking
underscore”.
During this editing phase, the display is as follows if we were using “DSPOT1” as the password:
The DS-EQ230 will exit the “Unit Lock” sub-menu and jump to the “User Password” sub-menu page
screen.
If the password entered in the “Confirm Password” page matches the one entered in the
“Enter Password” page, the following screen will appear:
The Password is now configured and held in the device’s memory.
The user can now decide to “lock” the DS-EQ230 by Password, inhibiting the access to ALL
Equalizer’s functions depending on the setting of the parameter “Password Enable/Disable”,
explained in the following paragraph.
DPA-240A
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User Password
[ ]
User Password
[DSPOT1]
DPA-240A
1x2 WAY X-OVER
Confirm Password
[DSPOT1]
DPA-240A
1x2 WAY X-OVER
DPA-240A
1x2 WAY X-OVER
SECURITY UTILITY
- User Password -
DPA-240A
1x2 WAY X-OVER
DPA-240A
1x2 WAY X-OVER
SECURITY UTILITY
- Insert Password -
15

Enable Password: from the “Enable Password” sub-menu:
Press “ENTER” to gain access to the “Enable Password” screen:
Once a Password has been entered into the DS-EQ230 through the steps described in the
Previous paragraph, it is possible to “Enable” or “Disable” the password function and therefore
lock the DS-EQ230, restricting access to all functions.
When a password has been entered you will be able to select the “Enable” option from the menu
and the unit will not be accessible for editing. In “Locked by Password” status, all
DS-EQ230 functions are inhibited to the User, including the use of the Mute LIN/RIN and Bypass
LOUT/ROUT/LCOMP/RCOMP buttons.
The only access available is to the parameters of the input/output channels (accessible by
pressing the edit button), ONLY to READ the values (no editing possible) if the “be shown” flag in
the “Show Parameter” Sub-Menu has been selected.
Once “Locked by Password” the “keylock” icon will appear on the default LCD screen and no menu
pages will be accessible, with the exception of the “User Password” option.
To regain access to the full operation of the DS-EQ230, ENTER into the “User Password” screen
and press the UTILITY Button to access the following screen to enable the correct password to be
entered:
After the correct password has been entered, you will be able to access the full functionality of the
DS-EQ230. The “Lock Icon” will disappear from the “Default Screen” and automatically, the
“Enable Password” page will be back to the “Disable” condition:
If no Password has been set within the DS-EQ230, as described in the previous paragraphs, the
DS-EQ230 will not allow you to enable any Password, and the choice in the “Enable Password” will
be limited to only the “Disable” option.
SECU
1x2 WAY X-OVER
DPA-240A
1x2 WAY X-OVER
User Password
[ ]
DPA-240A
1x2 WAY X-OVER
DPA-240A
1x2 WAY X-OVER
DPA-240A
1x2 WAY X-OVER
SECURITY UTILITY
- User Password -
DPA-240A
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Enable Password
Password : Disable *
DPA-240A
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DPA-240A
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Enable Password
Password : Disable *
16

• Menu “LIN/RIN” Equalizer’s Channels Editing [access by pushing the “LIN/RIN”
buttons]
From the “Default Screen”, it is possible to access the “LIN/RIN” editing menu by pushing the “LIN”
or “RIN” button. Once the button is pressed, the related blue “EDIT” LED will turn ON. The
Sub-Menu pages can now be scrolled through by rotating clockwise and counter-clockwise the
“NAV/PM1” encoder.
For parameter editing, it is necessary to press ENTER and an arrow will appear on the left of the
screen “->”. Then use the “PM2” and “PM3” encoders for selecting and setting the parameter
values. On some parameters that have three independent values, you will also need to use the
PM1 encoder, eg filter parameter settings.
Note: All parameter editing can be done using the “NAV/PM1”, “PM2”, and “PM3” encoders and the
current shown value of the selected option is AUTOMATICALLY loaded during the encoders’ use
and stored as the current value once leaving the page.
Name page - from this screen it is possible to assign a 6 character name to the Equalizer’s
Channel.
The following is an example screen for a “Name” page labeled “Left” for the Equalizer’s Channel
LIN [A]:
To Edit press ENTER on the Name Page and the entering arrow will appear as in the example
below:
The first letter position will be blinking.
Select the Character position from the 6 available by rotating the “NAV/PM1” encoder, then by
using the “PM2” or “PM3” encoder it is possible to select the desired character.
OutputA Left Name
Name = Left
DPA-240A
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OutputA Left Name
->Name = Left
Once you are happy with your name selection, press “ENTER” to confirm the edited Name. The
New name will be stored. The following example shows “Ch[A]” replacing our previous name of
“Left”:
DPA-240A
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OutputA Ch[A] Name
Name = Ch[A]
17

Source page - from this page it is possible to assign one of the following Inputs to any Equalizer’s
Channel:
1. Analog InA = Input Channel A
2. Analog InB = Input Channel B
3. Analog InA+B = Sum of Input Channel A and Input Channel B
4. Digital Left = Input S/PDIF Channel Left
5. Digital Right = Input S/PDIF Channel Right
6. Digital L+R = Sum of Input S/PDIF Channel Left and Input S/PDIF Channel Right
The following is an example screen for the “Source” where Analog Input A is assigned to
Equalizer’s Channel A (named Left):
After pressing ENTER, an arrow will appear on the left of the screen “->”. The Input can be selected
by rotating either the “PM2” or “PM3” encoders.
Gain page - from this screen it is possible to set the Equalizer’s Channels Level from -12dB to
+6dB. Press ENTER and an arrow will appear on the left of the screen “->”, then use the “PM1” or
“PM2” buttons.
The value set on this screen will only affect the input level of the selected Equalizer’s Channel
LIN/RIN. The following is an example screen for the “Gain” page where the Gain of the Equalizer’s
Channel A (named Left) is set to +0.0dB:
Polarity page - from this page it is possible to set the Equalizer’s Channel Polarity, by using the
“PM1” or “PM2” encoders.
The polarity can be “Normal” or “Inverted” (which means rotated of 180 Degrees).
The following is an example of a “Polarity” screen where the Polarity of the Equalizer’s Channel A
(named Left) is set to “Normal”:
DPA-240A
1x2 WAY X-OVER
DPA-240A
1x2 WAY X-OVER
DPA-240A
1x2 WAY X-OVER
OutputA Left Source
Source = Analog InA
OutputA Left Gain
-> Gain = + 0.0dB
OutputA Left Polarity
-> Polarity = Normal
18

Delay page - from this page it is possible to set the Equalizer’s Channels Delay Time from
000.000mS up to 848.9984mS, by steps of 1mS or 20.8uS.
To set the Delay time press ENTER an arrow will appear on the left of the screen “->”. Then use
the “PM2” encoder to set the Delay Time in steps of 1mS and the “PM3”, for setting the “fine” Delay
Time in steps of 20.8 microseconds.
The following is an example screen for the “Delay” page where the Delay Time of Equalizer’s
Channel A (named Left) is set to 160.1872mS:
HPF sub-menu - from this sub-menu it is possible to set the Equalizer’s Channels High Pass Filter
(HPF).
The following is an example of a HPF sub-menu screen with the filter set at 24dB Linkwitz/Riley on
Equalizer’s Channel A (named Left):
The filter’s parameters can be modified by use the “PM2” and “PM3” encoders for editing the
Filter’s Low Cut Frequency and the Filter’s Type and Order.
The Low Cut Frequency of the High Pass Filter can be edited using the “PM2” encoder and the
Filter’s Type and Order can be edited by using the “PM3” encoder.
“Low Cut Frequency”: the selectable frequencies range is from 20Hz to 20kHz in steps of 1/24 of
an Octave and can be adjusted by rotating the “PM2” encoder.
“High Pass Type and Order”: allows you to select the Equalizer’s High Pass Filter Shape and
Order.
The available shapes and orders for the High Pass Filter, that are accessible by rotating the “PM3”
encoder, are listed below:
- No Cut-Off (High Pass Filter Bypassed)
- Butwrth 6dB (Butterworth Filter 6dB/Oct Slope)
- Butwrth 12dB (Butterworth Filter 12dB/Oct Slope)
- Lnk/Ril 12dB (Linkwitz/Riley Filter 12dB/Oct Slope)
- Bessel 12dB (Bessel Filter 12dB/Oct Slope)
- Butwrth l8dB (Butterworth Filter 18dB/Oct Slope)
- Butwrth 24dB (Butterworth Filter 24dB/Oct Slope)
- Lnk/Ril 24dB (Linkwitz/Riley Filter 24dB/Oct Slope)
- Bessel 24dB (Bessel Filter 24dB/Oct Slope)
Note1: Once the desired options have been selected using the 2 encoders, they are automatically
saved as current and stored in the DS-EQ230 system status once leaving the page.
Note2: To exit this page, push the “ESC” button.
DPA-240A
1x2 WAY X-OVER
DPA-240A
1x2 WAY X-OVER
OutputA Left Delay
-> Delay = 160.1872mS
OutputA Left HPF
-> 20.0 Hz Lnk/Ril 24dB
19