Akai DPS24 User manual

DIGITAL PERSONAL STUDIO

The lightning flash with arrowhead symbol, within an equilateral triangle, is
intendedtoalerttheusertothepresenceofuninsulated“dangerousvoltage”
within the product’s enclosure; that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
Theexclamationpointwithinanequilateraltriangleisintentedtoalerttheuser
to the presence of important operating and maintenance (servicing) instruc-
tions in the literature accompanying the appliance.
THE SYMBOLS ARE RULED BY UL STANDARDS (U.S.A.)
5B-En
WARNING!!
To prevent fire or shock hazard, do not expose this appliance to rain or moisture.
1-En
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
Lithium battery
This product uses a lithium battery for memory backup.
The lithium battery should only be replaced by qualified service personnel.
Improper handling may cause risk of explosion. 24A-En
Important Notice
The material in this document is copyright to AKAI professional M.I. Corp., and may not be
quoted or reproduced in any form without written permission from the company.
LIMITED SOFTWARE WARRANTY POLICY
All the software provided with, or purchased especially for, AKAI professional products has
been tested for functionality. AKAI professional M.I. Corp. will make its best efforts to correct
reported software defects for future releases subject to technical practicabilities.
AKAI professional M.I. Corp. makes no warranty or representation either expressed or
implied with respect to the system's performance or fitness for a particular purpose.
In no event will AKAI professional M.I. Corp. be liable for direct or indirect damages arising
from any defect in the software or its documentation. Further, AKAI professional M.I. Corp.
will not accept any liability for any programs, sounds, audio recording or sequences stored in
or used with AKAI professional products, including the cost of recovery of such data.
The warranties, remedies and disclaimers above are exclusive and take precedence over all
others, oral or written, express or implied, to the extent permitted by law in the geographical
area of the product's use. No employee of AKAI professional M.I. Corp., agent, distributor or
employee of an agent or distributor is authorised to offer any variation from this policy.
1/21/2002 Rev. 2

i
WARNING
WARNING: WHEN USING ELECTRIC PRODUCTS, BASIC PRECAUTIONS SHOULD ALWAYS BE
FOLLOWED, INCLUDING THE FOLLOWING:
WARNING
The DPS24 is designed to be used in a standard household environment.
Power requirements for electrical equipment vary from area to area. Please ensure that your DPS24 meets the
power requirements in your area. If in doubt, consult a qualified electrician or AKAI professional dealer.
120 VAC @ 60 Hz for USA and Canada
230 VAC @ 50 Hz for Europe
240 VAC @ 50 Hz for Australia
PROTECTING YOURSELF AND THE DPS24
• Never touch the AC plug with wet hands.
• Always disconnect the DPS24 from the power supply by pulling on the plug, not the cord.
• Allow only an AKAI professional dealer or qualified professional engineer to repair or reassemble the
DPS24.Apartfrom voiding the warranty,unauthorized engineers might touchlive internal parts andreceive
a serious electrical shock. There are no user serviceable parts inside.
• Do not put, or allow anyone to put any object, especially metal objects, into the DPS24.
• Use only a household AC power supply. Never use a DC power supply.
• If water or any other liquid is spilled into or onto the DPS24, disconnect the power, and call your dealer.
• Make sure that the unit is well-ventilated, and away from direct sunlight.
• To avoid damage to internal circuitry, as well as the external finish, keep the DPS24 away from sources of
direct heat (stoves, radiators, etc.).
• Avoid using aerosol insecticides, etc. near the DPS24. They may damage the surface, and may ignite.
• Do not use denatured alcohol, thinner or similar chemicals to clean the DPS24. They will damage the
finish.
• Modification of this equipment is dangerous, and can result in the functions of the DPS24 being impaired.
Never attempt to modify the equipment in any way.
• Make sure that the DPS24 is always well-supported when in use (either in a specially-designed equipment
rack, or on a firm level surface).
• Inorder to assure optimum performance of your DPS24, select the setup location carefully, andmake sure
the equipment is used properly.Avoid setting up the DPS24 in the following locations:
1. In a humid or dusty environment
2. In a room with poor ventilation
3. On a surface which is not horizontal
4. Inside a vehicle such as a car, where it will be subject to vibration
5. In an extremely hot or cold environment

ii
WARNING
WARNING
THIS APPARATUS MUST BE EARTHED
IMPORTANT
This equipment is fitted with an approved non-rewireable UK mains plug.
To change the fuse in this type of plug proceed as follows:
1) Remove the fuse cover and old fuse.
2) Fit a new fuse which should be a BS1362 5 Amp A.S.T.A or BSI approved type.
3) Refit the fuse cover.
If the AC mains plug fitted to the lead supplied with this equipment is not suitable for your type of
AC outlet sockets, it should be changed to anAC mains lead, complete with moulded plug, to the
appropriate type. If this is not possible, the plug should be cut off and a correct one fitted to suit the
AC outlet. This should be fused at 5Amps.
If a plug without a fuse is used, the fuse at the distribution board should NOT BE GREATER than
5 Amp.
PLEASE NOTE: THE SEVERED PLUG MUST BE DESTROYED TOAVOID A POSSIBLE
SHOCK HAZARD SHOULD IT BE INSERTED INTOA 13 AMP SOCKET
ELSEWHERE.
The wires in this mains lead are coloured in accordance with the following code:
GREEN and YELLOW — Earth
BLUE — Neutral
BROWN — Live
Asthe colours ofthe wires inthe mains lead ofthis apparatus maynot correspond with thecoloured
markings identifying the terminals in your plug, please proceed as follows:
The wire which is coloured GREEN and YELLOW must be connected to the terminal which is
marked with the letter E or with the safety earth symbol or coloured GREEN or coloured
GREEN and YELLOW.
The wire which is coloured BLUE must be connected to the terminal which is marked with the
letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked
with the letter L or coloured RED.
THIS APPARATUS MUST BE EARTHED
Ensure that all the terminals are securely tightened and no loose strands of wire exist.
Before replacing the plug cover, make certain the cord grip is clamped over the outer sheath of the
lead and not simply over the wires.
6D-En
For U.K. customers only

iii
WARNING
FCC WARNING
This equipment has been tested and found to comply with the limits for a Class B digital device pursuant
to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
bedetermined by turning the equipment offand on,theuser is encouraged to try tocorrect the interference
by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
21B-En
AVIS POUR LES ACHETEURS CANADIENS DU DPS24
Le présent appareil numérique n’ément pas de bruits radioélectriques dépassant les limites applicables
aux appareils numériques de la Class B prescrites dans le Règlement sur le brouillage radioélectrique
édicté par le ministère des Communications du Canada. 27-F
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus
set out in the Radio Interference Regulations of the Canadian Department of Communications. 27-En
VENTILATION
Do not prevent the unit’s ventilation, especially by placing the unit on soft carpet, in a narrow space, or by
placing objects on the unit’s chassis—top, side, or rear panels.Always keep the unit’s chassis at least 10
centimeters from any other objects. 31C-En
CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE MANUFACTURER FOR
COMPLIANCE COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT. 32-En
COPYRIGHT NOTICE
TheAKAI professionalDPS24 is a computer-based device, andas such contains and usessoftware in ROMs.
Thissoftware, and all relateddocumentation, including this Operator’sManual, containproprietary information
which is protected by copyright laws.All rights are reserved. No part of the software or its documentation may
be copied, transferred or modified. You may not modify, adapt, translate, lease, distribute, resell for profit or
create derivative works based on the software and its related documentation or any part thereof without prior
written consent from AKAI professional M.I. Corp., Yokohama, Japan.

iv
TABLE OF CONTENTS
Table of Contents
INTRODUCTION ................................................................................................. 1
FEATURES ...................................................................................................................1
OVERVIEW ........................................................................................................... 2
DPS24 STRUCTURE ....................................................................................................2
GETTING AROUND THE DPS24 ................................................................................ 3
INPUTS .......................................................................................................................4
RECORD/EDIT SELECT KEYS .......................................................................................5
GROUPS .....................................................................................................................6
SUB-GROUPING CHANNELS TO THE STEREO L/R BUS ........................................... 6
Q-STRIP FUNCTION KEYS/CHANNEL ENCODERS ....................................................7
Q-CHANNEL SELECT/Q-CHANNEL ENCODERS ........................................................ 8
Q-STRIP/CHANNEL ENCODERS ............................................................................... 10
FADERS/FADER BANKS............................................................................................. 11
MASTER SECTION .................................................................................................... 13
MONITOR SECTION ................................................................................................ 14
LCD ‘POD’................................................................................................................16
MAIN CONTROL SECTION ...................................................................................... 17
MIX SCENE ............................................................................................................... 20
TRANSPORT KEYS .................................................................................................... 23
EDIT PLAY KEYS ........................................................................................................ 24
AUTOLOCATOR ....................................................................................................... 25
USING THE AUTOLOCATOR ................................................................................... 26
JOG/SHUTTLE WHEEL ..............................................................................................28
IN/OUT KEYS ............................................................................................................28
SCREEN CONVENTIONS ................................................................................... 29
LCD LAYOUT ........................................................................................................... 29
PROMPTS .................................................................................................................31
NAMING ..................................................................................................................32
SOFT KEYS ................................................................................................................32
ILLUMINATED KEYS ................................................................................................. 33
MOVING AROUND THE LCD..................................................................................34
REAR PANEL ....................................................................................................... 36
FRONT PANEL .................................................................................................... 38
POWERING UP THE DPS24 ............................................................................... 39
DPS24 MODES ................................................................................................... 40
MAIN SCREEN .................................................................................................... 41
GRID (GRaphic Interface Display) ............................................................................. 42
EDIT MODE........................................................................................................ 43
EDITING AND AUTOMATION ................................................................................. 45
COPY ........................................................................................................................46
CUT ..........................................................................................................................47
ERASE .......................................................................................................................48
INSERT ...................................................................................................................... 48
PASTE........................................................................................................................ 49
MOVE .......................................................................................................................50

v
TABLE OF CONTENTS
DSP MODE ......................................................................................................... 51
STRETCH ..................................................................................................................52
PITCH SHIFT .............................................................................................................54
BPM ..........................................................................................................................54
VARI-SPEED .............................................................................................................. 55
REVERSE ...................................................................................................................56
NORMALISE .............................................................................................................56
MIXER MODE ..................................................................................................... 57
CHANNEL.................................................................................................................59
CHANNEL DYNAMICS PROCESSOR ........................................................................62
STEREO CHANNELS ................................................................................................. 63
MIXVIEW ..................................................................................................................64
SOLO SETUP ............................................................................................................ 65
USING SOLO............................................................................................................66
FX/AUX SETUP..........................................................................................................67
TALKBACK ................................................................................................................68
PATCH MODE .................................................................................................... 69
AUTOMATION ................................................................................................... 74
ABOUT THE AUTOMATION .................................................................................... 76
TRIM FADERS ...........................................................................................................78
EFFECTS MODE .................................................................................................. 80
SELECTING FX CHANNELS.......................................................................................92
SELECTING FX TYPES ............................................................................................... 93
EDITING EFFECTS .....................................................................................................82
STORING EDITED EFFECTS ......................................................................................82
EFFECTS LIBRARY ..................................................................................................... 82
EFFECTS SEND/RETURN LEVELS...............................................................................84
SETTING UP MULTI-EFFECTS ...................................................................................84
RECORDING EFFECTS ..............................................................................................84
ADDING EFFECTS TO A CONTROL ROOM MONITOR MIX ................................... 84
ADDING EFFECTS TO A FOLDBACK MIX ................................................................ 85
PROJECT MODE ................................................................................................. 86
CREATING NEW PROJECTS ......................................................................................86
MANAGING PROJECTS ............................................................................................86
BACKING UP PROJECTS........................................................................................... 87
RESTORING PROJECTS .............................................................................................88
VIRTUAL TRACKS .............................................................................................. 89
SETUP MODE ..................................................................................................... 90
DISK..........................................................................................................................92
TEMPO MAPS ...........................................................................................................94
USER BANK .............................................................................................................. 95
PREFERENCES ...........................................................................................................96
SET CLOCK ...............................................................................................................97
CD-RECORDER .................................................................................................. 98
MIXING DOWN................................................................................................. 99
CD PLAYER ....................................................................................................... 100

vi
TABLE OF CONTENTS
EXT SYNC KEY .................................................................................................. 101
APPENDIX ........................................................................................................ 103
MIDI Implementation Chart.....................................................................................103
Block Diagrams .......................................................................................................104
Installation of Options - To Service Technicians .......................................................107
IB-24LTC/IB-24ADT ............................................................................ 107
IB-24SCSI............................................................................................107
Hard Disk Drive..................................................................................108
CD-R/CD-RW Drive ............................................................................ 109
SPECIFICATIONS ...............................................................................................110
INDEX ...............................................................................................................112

1
INTRODUCTION
FEATURES
Thank you for purchasing the DPS24 24-track personal studio. The DPS24 is packed full of highly professional
features that allow you to make digital multi-track recordings and mixdowns in one convenient unit. These include:
• 24-track hard disk recorder/editor offers non-compressed 16/24-bit linear operation at 32/44.1/48/96kHz sampling
rates with non-destructive multi-track real-time editing (cut, copy, paste, insert, move, etc.).
• 46-channel digital mixer with 8 groups, phantom power (inputs 1-4), multi-channel digital I/O, stereo digital I/O,
talkback, 2-track input, stereo AUX input and internal digital patchbay.
• 100mm long throw touch sensitive, motorised faders.
• Inputs and disk tracks have 3-band semi-parametric EQ and dynamics processing (compressor, gate) per channel.
• Inputs and disk tracks have 4 pre/post sends switchable to Internal effects orAUX sends per channel.
• Over 50 real-time effects (x 4 channels) which include delay, chorus, flanger, phase shifter, reverb, pitch shifter,
auto-pan, auto/touch-wah, rotary speaker simulation, distortion, EQ, noise gate, compressor/limiter, enhancer
and real-time pitch corrector.
• 24 x balanced analogue inputs (12 x 2 banks) reduces the need for re-patching.
• Balanced send/return inserts on Inputs 1-4.
• Q-STRIP gives quick and convenient access to pan and effects/aux sends.
• Q-CHANNEL puts an entire channel of controls (pan, EQ, sends) at your fingertips and the collar of LEDs
around the control show each control’s position.
• Q-LINK controls alongside the LCD gives quick and easy access to on-screen parameters.
• MAIN and NEARFIELD monitor outputs with dedicated console switch.
• Dedicated MONO switch allows mono reference monitoring.
• STUDIO outputs feed headphone monitoring in a separate recording area.
• Dedicated JOG/SHUTTLE wheel for multi-track scrubbing.
• Off-line DSP functions include stereo, phase coherent timestretch, pitch shift, BPM matching, varispeed and
reverse.
• Multiple levels of UNDO/REDO
• Up to 256 ‘virtual tracks’
• 320 x 240 greyscale LCD offers an intuitive and easy-to-use operating environment.
• Autolocator with 100 locate points per project.
• External sync to SMPTE (optional) and MIDI timecode.
• CD-RW option allows back-up and mastering.

2
OVERVIEW
DPS24 STRUCTURE
Internally, the DPS24 is laid out much like any conventional recording studio:
GroupTape
returns outs
Stereo
Out
2-trk
In
FX
SendsReturns
FX
PATCHBAYS
Monitor
Out
Nearfield
Out
(to LINE inputs/inserts)
Mics
(to MIC inputs)
FX RACK
2-TRACK MTR
Main
Monitor
At the heart of this ‘typical’studio is a large, multi-channel mixer. The mixer’s GROUP outputs are connected to the
inputs of the MTR (multi-track recorder) and inputs are routed to tracks on the MTR via these. The outputs of the
MTR are fed back into the mixer where the tracks can be mixed, EQ’d, etc. Microphones are connected to balanced
mic inputs on the mixer and line inputs are patched to the line inputs. The effects sends are connected to the effects
processors and the outputs of these are connected to the mixer’s effects return channels. The mixer’s stereo L/R
outputs are connected to a stereo mastering machine and its outputs are returned to the console’s 2-TRACK inputs
and monitored using the 2-TRACK switch on the console.
Monitor outputs feed an amplification system and, as is common in high-end studios, there are two monitor outputs
- one feeds the control room’s main monitoring system whilst another feeds a smaller monitoring system (maybe a
domestic hi-fi) for checking a mix on smaller speakers. Also in this typical studio (but not shown here) would be
compressors, noise gates and so forth.
If you are familiar with this setup, then you already understand most of the DPS24 as this is pretty much what the
DPS24 offers!
However, instead of separate analogue units, all the above is done digitally within the DPS24 so that you enjoy the
benefits of superior sound quality, automated mixing, non-destructive editing and much more besides in one
convenient unit.

3
OVERVIEW
GETTING AROUND THE DPS24
GETTING AROUND THE DPS24
This section deals with the DPS24’s control surface. Although we would like to think that most of it should be fairly
self-explanatory, please read this section to gain a full understanding of the DPS24’s functions.
The panel is laid out logically with many dedicated keys that provide direct access to the most commonly used
functions employed when recording, track laying, overdubbing and mixing and the DPS24’s control surface is de-
signed in such a way that for every day use, it should not be necessary to access obscure, LCD-driven menus - with
its ‘knobby’ front panel, operation is designed to be as ‘hands-on’ and ‘traditional’ as possible. For example....
For track laying, route the inputs to the appropriate track(s) using the Group function as on a traditional mixer, select
the track(s) for record and press PLAY and RECORD together. Drop out of record by pressing PLAY again. To
overdub, rewind, re-group, select different tracks for record and repeat the process, monitoring previously recorded
material via the DISK TRACKS fader bank.
Want to pan your tracks? Simply use the row of encoders above the faders. Want to add effects? Select the appropri-
ate FX send in the Q-STRIP FUNCTION panel and adjust the encoders to set FX send levels as necessary.
Need to tweak EQ? Select the appropriate channel(s) using the channel SELECT keys, press Q-CHANNEL and
adjust the EQ using the Q-CHANNEL encoders.
Need to tweak an effect? Press FX and use the Q-LINK controls to modify parameters (and with the Q-CHANNEL
selected, you can adjust the channel parameters AND the effects parameters simultaneously).
If you are working with artists in separate rooms, set up a ‘foldback’ mix using pre-fade AUX 3 and/or 4 and the
STUDIO outputs - even speak to them via the DPS24’s internal talkback mic during the track laying process.
Having laid down some tracks, you hear something that needs deleting! Simply hit EDIT, select the appropriate
track(s), mark the offending region with the IN/OUT keys and press CUT or ERASE. Similarly, you want to use that
one great guitar riff elsewhere in the project - select the appropriate track(s), press EDIT, mark the region, copy it and
paste it wherever it’s needed.
You get the picture!
And so far, unlike other digital mixers/recorders, all of this is achieved without hardly ever having to refer to the
LCD!
To find out more, read on.

4
OVERVIEW
INPUTS
Across the top of the panel are controls associated with the twelve analogue input channels
PRE PRE PRE PREEQ ON
Q-CHANNEL
A B
LINE MIC
SIGNAL / CLIP
+60
0
!!SOLO!!
MAX
MIN
LINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MIC
A BA BA BA BA BA BA BA BA BA BA B
+60
0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0
SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP
+45
-15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15
TRIM
A / B
48V
LINE
/ MIC
ON OFF
ASSIGN
RECORD
/EDIT
SELECT
234567891011121
123456789101112
123456789101112
13 14 15 16 17 18 19 20 21 22 23 24
L / R 1 / 2 3 / 4 5 / 6 7 / 8
FX /AUX 1 FX /AUX 2 F X /AUX3 FX /AUX 4
Q-STRIP
FUNCTION
PAN
MONITOR
LEVEL
2-TRACK
MONO
NEAR
+45
-15 +45 -15
34
78
812
456
4567
8123
23
567
1
TALK BACK
SELECT
STUDIO CR
GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 GROUP 7 GROUP 8
SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO
SELECT
ON
INPUT 1
TRACK 1 / 13
FX RTN 1 FX RTN 2 FX RTN 3 FX RTN 4 L / R
23456789101112
2 / 14 3 / 15 4 / 16 5 / 17 6 / 18 7 / 19 8 / 20 9 / 21 10 / 22 11 / 23 12 / 24 MASTER
PAN LOW SWEEP HIGH EFFECT / AUX SENDS
L R FX / AUX 1 FX/ AUX 2 F X / AUX 3 FX / AUX 4
20Hz -24dB +24dB
20kHz 20Hz -24dB +24dB
20kHz
Q
20Hz -24dB +24dB 20kHz
ZOOM
V.TRACK CD-RDSP PATCHGRID
SHIFT
OFFSET
ABORT
SET
LOOP
SETUPPROJECTFXAUTOMATEMIXEREDIT
CURSOR
789
456
123
-
+0
OUT
JOG
@ SHUTTLE
RECALLSTORE
WHEEL
IN
INP MON
INP
1-12
TRACKS
1-12
TRACKS
13-24
GROUP
FX
USER
BANK
UNDO REDO PRE-ROLL AUTO
TO FROM IN OUT AUTO LOCATE
OVER
REWIND FAST FORWARD STOP
55
MIX SCENE
ENTERCANCEL
FADER BANK
EXT
SYNC MAIN
SCREEN
GO TO MEMORY
T B
LEVEL
RELEASE
LOCK
CONTRAST
Q 1
Q 3
Q 5
Q 2
Q 4
Q 6
F 1 F 2 F 3 F 4 F 5 F 6
LR
2
0
6
4
10
8
20
15
25
35
30
40
60
50
CLIP
@ DISPLAY
@ SELECT
HOURS MINS SECS FRAMES
BARS BEATS CLOCKS
The functions are:
48V ON/OFF Switches on 48 volt phantom power to Inputs 1-4 allowing these channels to be used
with condenser mics.
A/B The switches running along the top switch between Input A or B.
A
B
LINE/MIC The next row of switches set the input (TRIM) sensitivity between line (-<> +45dB)
and mic (0dB <> +60dB).
TRIM This pot allows you set the input channel’s initial gain according to the setting of the
LINE/MIC switch
SIG/CLIP This tri-coloured LED shows the level of the input signal after the input pre-amp. It
illuminates as follows:
-60dB or less OFF
-60dB -> -3dB GREEN
-3dB YELLOW
0dB RED (clip)

5
OVERVIEW
RECORD/EDIT SELECT KEYS
Below the inputs are the RECORD/EDIT SELECT keys 1-24:
PRE PRE PRE PREEQ ON
Q-CHANNEL
A B
LINE MIC
SIGNAL / CLIP
+60
0
!!SOLO!!
MAX
MIN
LINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MIC
A BA BA BA BA BA BA BA BA BA BA B
+60
0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0
SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP
+45
-15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15
TRIM
A / B
48V
LINE
/ MIC
ON OFF
ASSIGN
RECORD
/EDIT
SELECT
234567891011121
123456789101112
123456789101112
13 14 15 16 17 18 19 20 21 22 23 24
L / R 1 / 2 3 / 4 5 / 6 7 / 8
FX /AUX 1 FX /AUX 2 F X /AUX3 FX /AUX 4
Q-STRIP
FUNCTION
PAN
MONITOR
LEVEL
2-TRACK
MONO
NEAR
+45
-15 +45 -15
34
78
812
456
4567
8123
23
567
1
TALK BACK
SELECT
STUDIO CR
GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 GROUP 7 GROUP 8
SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO
SELECT
ON
INPUT 1
TRACK 1 / 13
FX RTN 1 FX RTN 2 FX RTN 3 FX RTN 4 L / R
23456789101112
2 / 14 3 / 15 4 / 16 5 / 17 6 / 18 7 / 19 8 / 20 9 / 21 10 / 22 11 / 23 12 / 24
MASTER
PAN LOW SWEEP HIGH EFFECT / AUX SENDS
L R FX / AUX 1 FX / AUX 2 FX / AUX 3 FX/ AUX 4
20Hz -24dB +24dB
20kHz 20Hz -24dB +24dB
20kHz
Q
20Hz -24dB +24dB
20kHz
ZOOM
V.TRACK CD-RDSP PATCHGRID
SHIFT
OFFSET
ABORT
SET
LOOP
SETUPPROJECTFXAUTOMATEMIXEREDIT
CURSOR
789
456
123
-
+0
OUT
JOG
@ SHUTTLE
RECALLSTORE
WHEEL
IN
INP MON
INP
1-12
TRACKS
1-12
TRACKS
13-24
GROUP
FX
USER
BANK
UNDO REDO PRE-ROLL AUTO
TO FROM IN OUT AUTO LOCATE
OVER
REWIND FAST FORWARD STOP
55
MIX SCENE
ENTERCANCEL
FADER BANK
EXT
SYNC MAIN
SCREEN
GO TO MEMORY
T B
LEVEL
RELEASE
LOCK
CONTRAST
Q 1
Q 3
Q 5
Q 2
Q 4
Q 6
F 1 F 2 F 3 F 4 F 5 F 6
LR
2
0
6
4
10
8
20
15
25
35
30
40
60
50
CLIP
@ DISPLAY
@ SELECT
HOURS MINS SECS FRAMES
BARS BEATS CLOCKS
These keys have bi-coloured LEDs and normally, when recording, they illuminate red and are used to select tracks
for record. However, when the EDIT mode is enabled, these keys illuminate green and are used to select tracks for
editing.
The number shown to the right of each key shows the default Group assignment. As on a ‘traditional’ console/
recorder combination, the group outputs are patched to the disk tracks and channels are routed to them by way of the
Groups. So, for example, to route Input 5 to Track 3, you would assign it to GROUP 3/4. To route, say, Tracks 1, 2,
3 and 4 to, say, Tracks 13 and 14 for a stereo bounce-down, you would assign them all to GROUP 5/6.
➸ NOTE : Because of the flexible patching facilities in the DPS24, it is possible to override the default group
routing arrangement so the default assignment shown alongside the record track numbers may not be applicable
if you have changed them. Routing and patching is explained in more detail later in this manual.

6
OVERVIEW
GROUPS
Below the RECORD/EDIT SELECT keys to the left of the panel are the ASSIGN keys:
PRE PRE PRE PREEQ ON
Q-CHANNEL
A B
LINE MIC
SIGNAL / CLIP
+60
0
!!SOLO!!
MAX
MIN
LINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MIC
A BA BA BA BA BA BA BA BA BA BA B
+60
0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0
SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP
+45
-15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15
TRIM
A / B
48V
LINE
/ MIC
ON OFF
ASSIGN
RECORD
/EDIT
SELECT
234567891011121
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13 14 15 16 17 18 19 20 21 22 23 24
L / R 1 / 2 3 / 4 5 / 6 7 / 8
FX /AUX 1 FX /AUX 2 F X /AUX3 FX /AUX 4
Q-STRIP
FUNCTION
PAN
MONITOR
LEVEL
2-TRACK
MONO
NEAR
+45
-15 +45 -15
34
78
812
456
4567
8123
23
567
1
TALK BACK
SELECT
STUDIO CR
GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 GROUP 7 GROUP 8
SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO
SELECT
ON
INPUT 1
TRACK 1 / 13
FX RTN 1 FX RTN 2 FX RTN 3 FX RTN 4 L / R
23456789101112
2 / 14 3 / 15 4 / 16 5 / 17 6 / 18 7 / 19 8 / 20 9 / 21 10 / 22 11 / 23 12 / 24
MASTER
PAN LOW SWEEP HIGH EFFECT / AUX SENDS
L R FX / AUX 1 FX / AUX 2 FX/ AUX 3 FX / AUX 4
20Hz -24dB +24dB
20kHz 20Hz -24dB +24dB
20kHz
Q
20Hz -24dB +24dB
20kHz
ZOOM
V.TRACK CD-RDSP PATCHGRID
SHIFT
OFFSET
ABORT
SET
LOOP
SETUPPROJECTFXAUTOMATEMIXEREDIT
CURSOR
789
456
123
-
+ 0
OUT
JOG
@ SHUTTLE
RECALLSTORE
WHEEL
IN
INP MON
INP
1-12
TRACKS
1-12
TRACKS
13-24
GROUP
FX
USER
BANK
UNDO REDO PRE-ROLL AUTO
TO FROM IN OUT AUTO LOCATE
OVER
REWIND FAST FORWARD STOP
55
MIX SCENE
ENTERCANCEL
FADER BANK
EXT
SYNC MAIN
SCREEN
GO TO MEMORY
T B
LEVEL
RELEASE
LOCK
CONTRAST
Q 1
Q 3
Q 5
Q 2
Q 4
Q 6
F 1 F 2 F 3 F 4 F 5 F 6
LR
2
0
6
4
10
8
20
15
25
35
30
40
60
50
CLIP
@ DISPLAY
@ SELECT
HOURS MINS SECS FRAMES
BARS BEATS CLOCKS
These allow you to route signals to the groups and also to the stereo L/R bus.
To route any channel to a Group (and hence to the track(s)), press the desired GROUPkey. The SELECTkeys for any
channels assigned to that group will illuminate whilst those that aren’t assigned will flash. Press the channel SE-
LECT keys for the channels you wish to assign (or press an illuminated key to de-assign a channel).
➸ NOTE 1: If a channel SELECT key is not lit, it means that the channel in question cannot be routed to that
bus. This applies to GROUP, AUX and MIDI mixer channels.
➸ NOTE 2: Almost any channel can be assigned to any group. However, it is not possible to assign groups to
groups. Groups can be assigned to the stereo L/R bus, however.
To assign a channel to the stereo L/R bus, press the L/R key. The SELECT keys for any channels assigned to the
stereo L/R bus will illuminate (and those that aren’t will flash). Press the channel SELECTkeys for the channels you
wish to assign (or press an illuminated key to de-assign a channel).
SUB-GROUPING CHANNELS TO THE STEREO L/R BUS
Very often (especially during mixdown), it is very useful to be able to sub-group certain channels to the stereo L/R
bus via the Groups. For example, all your drums and percussion channels could be sub-grouped to one group, all
your keyboard parts to another, all your backing vocals to another, etc., so that you have control over these elements
with a single Group fader.
Routing groups to the stereo L/R bus is done simply by pressing the L/R key and, in the GROUPS/FX fader bank,
pressing the group channels’(1-8) SELECT key(s) as appropriate. This is consistent with assigning other channels
to groups.

7
OVERVIEW
➸ NOTE : Channels which are routed to a sub-group need to be taken out of the stereo L/R bus to avoid them
appearing twice - once through the direct connection of the channel to the stereo L/R bus and secondly through
its connection to the stereo L/R bus via the subgroup.
Q-STRIP FUNCTION KEYS/CHANNEL ENCODERS
Below the RECORD/EDIT SELECT keys to the left of the panel are the Q-STRIP FUNCTION keys:
PRE PRE PRE PREEQ ON
Q-CHANNEL
A B
LINE MIC
SIGNAL / CLIP
+60
0
!!SOLO!!
MAX
MIN
LINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MIC
A BA BA BA BA BA BA BA BA BA BA B
+60
0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0
SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP
+45
-15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15
TRIM
A / B
48V
LINE
/ MIC
ON OFF
ASSIGN
RECORD
/EDIT
SELECT
234567891011121
123456789101112
123456789101112
13 14 15 16 17 18 19 20 21 22 23 24
L / R 1 / 2 3 / 4 5 / 6 7 / 8
FX /AUX 1 FX /AUX 2 F X /AUX3 FX /AUX 4
Q-STRIP
FUNCTION
PAN
MONITOR
LEVEL
2-TRACK
MONO
NEAR
+45
-15 +45 -15
34
78
812
456
4567
8123
23
567
1
TALK BACK
SELECT
STUDIO CR
GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 GROUP 7 GROUP 8
SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO
SELECT
ON
INPUT 1
TRACK 1 / 13
FX RTN 1 FX RTN 2 FX RTN 3 FX RTN 4 L / R
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2 / 14 3 / 15 4 / 16 5 / 17 6 / 18 7 / 19 8 / 20 9 / 21 10 / 22 11 / 23 12 / 24
MASTER
PAN LOW SWEEP HIGH EFFECT / AUX SENDS
L R FX / AUX 1 FX / AUX 2 FX / AUX 3 FX/ AUX 4
20Hz -24dB +24dB
20kHz 20Hz -24dB +24dB
20kHz
Q
20Hz -24dB +24dB
20kHz
ZOOM
V.TRACK CD-RDSP PATCHGRID
SHIFT
OFFSET
ABORT
SET
LOOP
SETUPPROJECTFXAUTOMATEMIXEREDIT
CURSOR
789
456
123
-
+ 0
OUT
JOG
@ SHUTTLE
RECALLSTORE
WHEEL
IN
INP MON
INP
1-12
TRACKS
1-12
TRACKS
13-24
GROUP
FX
USER
BANK
UNDO REDO PRE-ROLL AUTO
TO FROM IN OUT AUTO LOCATE
OVER
REWIND FAST FORWARD STOP
55
MIX SCENE
ENTERCANCEL
FADER BANK
EXT
SYNC MAIN
SCREEN
GO TO MEMORY
T B
LEVEL
RELEASE
LOCK
CONTRAST
Q 1
Q 3
Q 5
Q 2
Q 4
Q 6
F 1 F 2 F 3 F 4 F 5 F 6
LR
2
0
6
4
10
8
20
15
25
35
30
40
60
50
CLIP
@ DISPLAY
@ SELECT
HOURS MINS SECS FRAMES
BARS BEATS CLOCKS
Directly above the channel faders is a row of continuous rotary encoders (the Q-STRIP) with a ‘collar’of LEDs
around each of them that serve a variety of purposes. On power up, their default function is to act as PAN controls
with one pan control for each of the channels. However, they may be used to set FX/AUX send levels. This function-
ality is selected using the Q-STRIP FUNCTION keys:
PAN Sets the rotary encoders to act as pan controls for each of the channels.
FX/AUX 1-4 Sets the rotary encoders to act as send levels for the internal effects channels or to theAUXILIARY
bus.
➸ NOTE :If the sends are configured as stereo sends, FX1/AUX1 sets the send level and FX2/AUX2 sets the pan
position. The same is true for FX/AUX3/4 - if set to stereo, FX3/AUX3 sets the level and FX4/AUX4 sets panning.

8
OVERVIEW
Q-CHANNEL SELECT/Q-CHANNEL ENCODERS
In the centre of the panel is the Q-CHANNEL key:
PRE PRE PRE PREEQ ON
Q-CHANNEL
A B
LINE MIC
SIGNAL / CLIP
+60
0
!!SOLO!!
MAX
MIN
LINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MIC
A BA BA BA BA BA BA BA BA BA BA B
+60
0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0
SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP
+45
-15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15
TRIM
A / B
48V
LINE
/ MIC
ON OFF
ASSIGN
RECORD
/EDIT
SELECT
234567891011121
123456789101112
123456789101112
13 14 15 16 17 18 19 20 21 22 23 24
L / R 1 / 2 3 / 4 5 / 6 7 / 8
FX /AUX 1 FX /AUX 2 F X /AUX3 FX /AUX 4
Q-STRIP
FUNCTION
PAN
MONITOR
LEVEL
2-TRACK
MONO
NEAR
+45
-15 +45 -15
34
78
812
456
4567
8123
23
567
1
TALK BACK
SELECT
STUDIO CR
GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 GROUP 7 GROUP 8
SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO
SELECT
ON
INPUT 1
TRACK 1 / 13
FX RTN 1 FX RTN 2 FX RTN 3 FX RTN 4 L / R
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2 / 14 3 / 15 4 / 16 5 / 17 6 / 18 7 / 19 8 / 20 9 / 21 10 / 22 11 / 23 12 / 24
MASTER
PAN LOW SWEEP HIGH EFFECT / AUX SENDS
L R FX / AUX 1 FX / AUX 2 FX / AUX 3 FX/ AUX 4
20Hz -24dB +24dB
20kHz 20Hz -24dB +24dB
20kHz
Q
20Hz -24dB +24dB
20kHz
ZOOM
V.TRACK CD-RDSP PATCHGRID
SHIFT
OFFSET
ABORT
SET
LOOP
SETUPPROJECTFXAUTOMATEMIXEREDIT
CURSOR
789
456
123
-
+ 0
OUT
JOG
@ SHUTTLE
RECALLSTORE
WHEEL
IN
INP MON
INP
1-12
TRACKS
1-12
TRACKS
13-24
GROUP
FX
USER
BANK
UNDO REDO PRE-ROLL AUTO
TO FROM IN OUT AUTO LOCATE
OVER
REWIND FAST FORWARD STOP
55
MIX SCENE
ENTERCANCEL
FADER BANK
EXT
SYNC MAIN
SCREEN
GO TO MEMORY
T B
LEVEL
RELEASE
LOCK
CONTRAST
Q 1
Q 3
Q 5
Q 2
Q 4
Q 6
F 1 F 2 F 3 F 4 F 5 F 6
LR
2
0
6
4
10
8
20
15
25
35
30
40
60
50
CLIP
@ DISPLAY
@ SELECT
HOURS MINS SECS FRAMES
BARS BEATS CLOCKS
One of the most useful features of the DPS24 is that the row of encoders directly above the faders can be switched
to become a complete channel’s worth of parameters allowing you to have ‘hands-on’ control of panning, EQ and
FX/Aux sends. This ‘mode’is enabled by pressing the Q-CHANNEL switch located centrally on the upper panel.
When this key is illuminated, the encoders function as a complete channel strip as follows from left to right:
PAN
LOW SHELF EQ FREQUENCY1
LF GAIN
SWEEP EQ FREQUENCY
SWEEP EQ GAIN
SWEEP EQ ‘Q’
HIGH SHELF EQ FREQUENCY1
HF GAIN
FX/AUX 1 SEND LEVEL
FX/AUX 2 SEND LEVEL
FX/AUX 3 SEND LEVEL
FX/AUX 4 SEND LEVEL
1Although these EQ controls are labelled LOW and HIGH, they actually cover the full frequency range of 20Hz to 20kHz.
However, LOW is a low frequency shelving filter and HIGH is a high frequency shelving filter.

9
OVERVIEW
Furthermore, the function of the Q-STRIP FUNCTION keys described earlier also change when the Q-CHANNEL
is enabled:
PAN FX/AUX 1 FX/AUX 2 FX/AUX 3 FX/AUX 4
EQON PREPRE PREPRE
Q-STRIP
FUNCTION
The labelling underneath the keys denotes their function when in Q-CHANNEL ‘mode’ and you have ‘hands-on’
control to bypass the EQ and to switch FX/AUX 1-4 as pre- or post-fade.
Of course, for the Q-CHANNEL ‘mode’ to be applicable, you must select a channel for editing (i.e. you should press
a channel’s SELECT key).

10
OVERVIEW
Q-STRIP/CHANNEL ENCODERS
Around the encoders is a collar of LEDs that show the encoder’s value. As the control is moved, so these LEDs
illuminate to show its position. However, the way these LEDs illuminate depend on the control’s function.
■PAN POSITION / EQ FREQUENCY
When used as a pan pot, the LEDs around the encoders illuminate as follows:
When the encoder is set to MID, the red LED at the bottom illuminates as well. This is to assist with viewing the
encoder(s) at an angle where the top middle LED may not be visible.
■LEVEL CONTROL
When the encoders are used as level controls (e.g. FX/AUX SEND), the LEDs illuminate as follows:
MIN MID MAX
■EQ GAIN
When the encoders are being used to set EQ gain in the Q-CHANNEL, the LEDs illuminate as follows:
-12dB 0dB +24dB
■EQ ‘Q’
When the encoder is used to set EQ ‘Q’ in the Q-CHANNEL, its’ LEDs illuminate as follows:
MIN MID MAX
In this way, the control gives an almost graphic indication of the ‘width’ of the sweep EQ. With the control at
minimum, the Q is at its widest; at maximum, the Q is at its narrowest.

11
OVERVIEW
FADERS/FADER BANKS
Below the DPS24’s Q-STRIP/CHANNEL encoders are the channel faders and SELECT and ON/SOLO keys:
PRE PRE PRE PREEQ ON
Q-CHANNEL
A B
LINE MIC
SIGNAL / CLIP
+60
0
!!SOLO!!
MAX
MIN
LINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MICLINE MIC
A BA BA BA BA BA BA BA BA BA BA B
+60
0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0+60 0
SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP SIGNAL / CLIP
+45
-15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15 +45 -15
TRIM
A / B
48V
LINE
/ MIC
ON OFF
ASSIGN
RECORD
/EDIT
SELECT
234567891011121
123456789101112
123456789101112
13 14 15 16 17 18 19 20 21 22 23 24
L / R 1 / 2 3 / 4 5 / 6 7 / 8
FX /AUX 1 FX /AUX 2 F X /AUX3 FX /AUX 4
Q-STRIP
FUNCTION
PAN
MONITOR
LEVEL
2-TRACK
MONO
NEAR
+45
-15 +45 -15
34
78
812
456
4567
8123
23
567
1
TALK BACK
SELECT
STUDIO CR
GROUP 1 GROUP 2 GROUP 3 GROUP 4 GROUP 5 GROUP 6 GROUP 7 GROUP 8
SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO SOLO
SELECT
ON
INPUT 1
TRACK 1 / 13
FX RTN 1 FX RTN 2 FX RTN 3 FX RTN 4 L / R
23456789101112
2 / 14 3 / 15 4 / 16 5 / 17 6 / 18 7 / 19 8 / 20 9 / 21 10 / 22 11 / 23 12 / 24
MASTER
PAN LOW SWEEP HIGH EFFECT / AUX SENDS
L R FX / AUX 1 FX / AUX 2 FX / AUX 3 FX/ AUX 4
20Hz -24dB +24dB
20kHz 20Hz -24dB +24dB
20kHz
Q
20Hz -24dB +24dB
20kHz
ZOOM
V.TRACK CD-RDSP PATCHGRID
SHIFT
OFFSET
ABORT
SET
LOOP
SETUPPROJECTFXAUTOMATEMIXEREDIT
CURSOR
789
456
123
-
+ 0
OUT
JOG
@ SHUTTLE
RECALLSTORE
WHEEL
IN
INP MON
INP
1-12
TRACKS
1-12
TRACKS
13-24
GROUP
FX
USER
BANK
UNDO REDO PRE-ROLL AUTO
TO FROM IN OUT AUTO LOCATE
OVER
REWIND FAST FORWARD STOP
55
MIX SCENE
ENTERCANCEL
FADER BANK
EXT
SYNC MAIN
SCREEN
GO TO MEMORY
T B
LEVEL
RELEASE
LOCK
CONTRAST
Q 1
Q 3
Q 5
Q 2
Q 4
Q 6
F 1 F 2 F 3 F 4 F 5 F 6
LR
2
0
6
4
10
8
20
15
25
35
30
40
60
50
CLIP
@ DISPLAY
@ SELECT
HOURS MINS SECS FRAMES
BARS BEATS CLOCKS
Each channel is identical whether it’s an input or a disk channel (the GROUP/FX channels are different and those
differences are described on the next page). Each channel has a long throw 100mm motorised fader which is touch
sensitive for use with the mixer’s automation and simply touching the fader will make it active.
A channel can be selected for editing using the channel SELECT key above each fader. The SELECT key is also
used to route channels to groups (and hence to disk tracks) for recording.
Channels may be muted using the green ON key. When the channel is ON, the key illuminates; when it is OFF
(muted), the key is not lit.
By pressing SHIFT+ON, the channel can be solo’d. When a channel is solo’d, the ON key’s LED flashes (and a
large SOLO LED flashes in the MASTER section). SOLO operation is described later in the manual.
The different channels are selected using the FADER BANK keys located above the transport keys. The types of
mixer channel types are as follows:
INPUTS 12 general purpose mixer channels which can be used to mix the DPS24’s various input
sources. The channels can also be used to add EQ and dynamics and also to send the
channels to either the internal effects and/or theAUX bus.
TRACKS 24 mixer channels which are sourced from the internal disk recorder. The channels can
also be used to add EQ and dynamics and also to send the channels to either the internal
effects and/or the AUX bus.
GROUP 8 channels providing control of the 8 group bus master levels. Pan, EQ, dynamics and
FX/AUX sends are not available on these channels.

12
OVERVIEW
FX RETURN By default, these provide control the stereo returns of the internal effects with balance
control and FX/Aux sends. However, these channels can be re-patched to mix any of
the DPS24 input sources.
FX SEND 4 channels providing control of the 4 fx bus master levels.
AUX SEND 4 channels providing control of the 4 aux bus master levels.
AUX IN A stereo auxiliary mixer channel allowing the AUX L/R inputs to be mixed to the
stereo L/R bus with level and mute control only. This channel has a fixed source.
MIDI CONTROLLER 16 channels each providing 2 MIDI controllers which can be assigned to any MIDI
channel or controller. Controller #1 is controlled by the channel fader and Controller
#2 is controlled by the channel’s PAN control. By default, these are configured to
send MIDI Volume on Controller #1 and MIDI Pan on Controller #2.
These channels are arranged by default as:
INPUTS 1-12 These default to mixing ADCs 1-12.
TRACKS 1-12 These default to mixing Tracks 1-12
TRACKS 13-24 These default to mixing tracks 13-24
GROUP/FX By default, Channels 1-8 control the Group Output levels and Channels 9-12 control
the stereo effects return levels for the internal effects.
USER Selects a bank of channels that are user assignable. By default, they are assigned as
follows:
Channels 1-4 Control the master send levels to the internal effects.
Channels 5-8 Control the master send levels to the AUX buss.
Channel 9 Controls the stereo level of the AUX IN to the stereo L/R bus
Channels 10-12 MIDI 1-3