Martinsound MultiMAX EX User manual

EX & EXR
User Manual
Martinsound
0
Multiformat Monitor Controllers
MultiMAX
User Manual

i
Martinsound, Inc., 1151 West Valley Boulevard, Alhambra, CA 91803
[phone] [phone]
www.martinsound.com
1
User Manual
EX & EXR
Multiformat Monitor Controllers
MultiMAX

ii
0 9
© 2000 Martinsound, Inc. All rights reserved.
Under the copyright laws, this manual may not be copied, in whole or in part, without the written
consent of Martinsound.
Every effort has been made to ensure that the information in this manual is accurate. Martinsound
is not responsible for printing or clerical errors.
MultiMAX and the Martinsound logo are Trademarks of Martinsound, Inc.
Other company and product names mentioned herein are trademarks of their respective companies.
Mention of third-party products is for informational purposes only and constitutes neither an
endorsement nor a recommendation. Martinsound assumes no responsibility with regard to the per-
formance or use of these products.
Written by Shawn Micheal and Steve Harvey, with assistance from Michael Somers.

iii
Table of Contents
EXR and MXEX 2.00 Firmware Addendum ...................................................................
Introduction to MultiMAX EX & EXR ............................................................................
Information
Cautions & Warnings ..............................................................................................
FCC Compliance .....................................................................................................
Safety Instructions ..................................................................................................
Important...................................................................................................................
Getting Connected ...........................................................................................................
Block Diagram .........................................................................................................
Standard 5.1/7.1 Interface ......................................................................................
Comprehensive EX/6.1 Interface ..........................................................................
DB25 Pin Outs - Top Row ......................................................................................
DB25 Pin Outs - Bottom Row ...............................................................................
Logic Interface - Example 1 ..................................................................................
Logic Interface - Example 2 ...................................................................................
Monitor Formats ................................................................................................................
F5/S2 ........................................................................................................................
F3/S2 ........................................................................................................................
F3/S3 ........................................................................................................................
F3/S4 ........................................................................................................................
F3/SX ........................................................................................................................
Neareld ...................................................................................................................
Small Mono ..............................................................................................................
Operation:Front Panel .....................................................................................................
Monitor Source ........................................................................................................
Setup .........................................................................................................................
Level ..........................................................................................................................
Monitor System .......................................................................................................
Source On ................................................................................................................
Operation: LCD: Main Screen .......................................................................................
Operation: Setup Menus .................................................................................................
Format .......................................................................................................................
Calibration ................................................................................................................
Options .....................................................................................................................
Interfaces ..................................................................................................................
Levels ........................................................................................................................
External Controls ....................................................................................................
Bass Redirect Main ................................................................................................
Bass Redirect Alt ....................................................................................................
Diagnostics ..............................................................................................................
Remote Control .................................................................................................................
Connections .............................................................................................................
Diagrams ..................................................................................................................
Specications
Audio .........................................................................................................................
Other .........................................................................................................................
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56
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60

iv
MultiMAX EXR Owners
Please refer to your Remote Control panel whenever the manual refers to the MultiMAX Controller
Front Panel controls.
MXEX 2.00 Firmware - New Features
Support For MultiMAX EXR
7.1 to 5.1 Monitor Downmix Check
While mixing in 7.1 with the Main Monitor Format set to F5/S2, it is now possible to hear a 5.1 down-
mix from the main monitors via the SDDS Automatic Format Conforming.
Select the Main monitor system. Press the Main button again to activate the 7.1>5.1 downmix mode.
The Main button will ash indicating the 7.1>5.1 downmix mode is active. Press Main again to switch
back to 7.1 monitoring.
Menu Navigation
The Menu system has been improved to make navigation easier.
Dual Splash Screen on Remote
The MultiMAX EX Remote now displays two splash screens when powering up the system. Splash
screen 1 indicates the Remote rmware version (UR #.##).
Splash screen 2 indicates the Controller rmware version (EX #.##).
EXR and MXEX 2.00 Firmware Addendum

1
Introduction to MultiMAX EX & EXR
Introduction
With the introduction of Dolby Surround EX™, surround sound has just gotten bigger and better. And
once again, Martinsound has an affordable, quick and easy, yet comprehensive Surround EX monitor-
ing solution for every multi-track console, MultiMAX EX.
MultiMAX EX is an important new tool designed to help studios and post production facilities easily
transition from two channel stereo to multi-channel surround sound, including the new formats that
use 3 or 4 channels just for surround information. Simply put, MultiMAX EX replaces the stereo moni-
tor section of your current console, while providing necessary additional compatibility checking, to
ensure that all your surround sound mixes are a success. Other exciting features are also included to
make mixing and tracking in surround as smooth as standard stereo sessions.
The most important thing to understand about MultiMAX EX is that it is not just a surround sound
level control. It is an integration of fundamental surround mixing building blocks within one unit, with
an easy to use interface.
The rst building block in MultiMAX EX is a unity gain mixer. Five eight-channel mixes are com-
bined into one eight-channel output. This provides an easy way to monitor the console mix bus or
master recorder along with three additional premixes. In addition, the output of the eight-channel
combined mix is available as an eight-channel processor send, along with a user variable downmixed
stereo output, convenient for making a personal copy of the mix for the producer. A xed downmixed
LCRS processor send is also available when mixing with stereo surrounds,
The second building block in MultiMAX EX is the monitor source selector. In addition to being able
to select the rst stage unity gain mixer in full channel width, downmixed stereo or mono, you can
monitor additional external devices. There is the provision for monitoring an eight-channel source
(i.e., a multi-channel processor or another multi-channel machine), as well as a stereo source in stereo
or mono (i.e. the Lt Rt of a processor or the return of the tape deck recording the producer’s personal
copy). There is an input for your console’s stereo (or quad) monitor section for access to its monitor-
ing functions, and nally, there is a production track input that can be monitored along with any other
source you’ve selected. Handy for monitoring that necessary scratch track without it getting into any
of your mixes or tape sends.
The third building block in MultiMAX EX is a combination of many tools used in surround sound
mixing. First are the monitor status selectors of the monitor source. They can act as channel on or solo.
Second is an LFE lter that simulates the DTV and DVD-V LFE encoding process. Third is the 7.1 to
5.1 downmix for checking a 7.1 SDDS mix on a 5.1 monitor system. And fourth is Bass Redirect, a tool
used in theaters with compromised theater speakers.
The fourth building block in MultiMAX EX is the eight-channel level control. This is probably the
reason you went shopping for a surround monitor controller. But even here MultiMAX EX rises above
the competition with the use of MDAC technology for sonic integrity and channel tracking.
The fth building block in MultiMAX EX is the monitor system selector. Four different monitor sys-
tems can be integrated with MultiMAX EX, because we understand that as well as stereo and mono
compatibility checks, you want to hear it over a variety of speakers.
The last building block is the menu system that allows the user to congure MultiMAX EX for his/her
session, environment, etc. Additionally, within the menu system is access to tools such as pink noise
and individual monitor trims, so necessary for proper surround sound monitor set up.
Because MultiMAX EX is such a sophisticated tool, many ways of implementing it are possible. In the
next few pages you will nd connector pinouts, logic wiring diagrams, and block diagrams to let you
know what can be interfaced. Interfacing to a patch bay is highly recommended! We also recommend
that you read the Operation sections before nalizing the interface design to your facility.

2

3
Information: Cautions & Warnings
The lightning ash with arrowhead symbol within an equilateral triangle is
intended to alert the user to the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of sufcient magnitude to
constitute a risk of electric shock to persons.
Le symbole éclair avec point de èche à l’intérieur d’un triangle équilatéral
est utilisé pour alerter l’utilisateur de la présence à l’intérieur du coffret de
«voltage dangereux» non isolé d’ampleur sufsante pour constituer un risque
d’électrocution.
The exclamation point within an equilateral triangle is intended to alert the
user to the presence of important operating and maintenance (servicing)
instructions in the literature accompanying the appliance.
Le point d’exclamation à l’intérieur d’un triangle équilatéral est employé pour
alerter l’utilisateur de la présence d’instructions importantes pour le
fonctionnement et l’entretien (service) dans le livret d’instruction
accompagnant l’appareil.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ÉLECTRIQUE
NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
ATTENTION: POUR ÉVITER LES RISQUES DE CHOC ÉLECTRIQUE,
NE PAS ENLEVER LE COUVERCLE.
AUCUN ENTRETIEN DE PIÈCES INTÉRIEURES PAR L'USAGER.
CONFIER L'ENTRETIEN AU PERSONNEL QUALIFIE.
AVIS: POUR ÉVITER LES RISQUES D'INCENDIE OU D'ÉLECTROCUTION,
N'EXPOSEZ PAS CET ARTICLE A LA PLUIE OU A L'HUMIDITÉ.
CAUTION AVIS

4
For Customers in the USA:
NOTE: 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 protec-
tion 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 be determined by turning the equipment off and on, the user is encour-
aged to try and correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and the receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is con-
nected.
Consult the dealer or an experienced radio/TV technician for help.
The shielded interface cable recommended in this manual must be used with this equipment in order
to comply with the limits for a digital device pursuant to Subpart B of Part 15 of FCC rules.
CAUTION: Changes or modications to this equipment not expressly approved by Martinsound for
compliance could void the user’s authority to operate this equipment.
Identication:
Please write in the following information for future reference(i.e. insurance claims, tech support,
return authorization, etc.):
Serial Number:
Purchased at:
Date of Purchase:
Information: FCC Compliance

5
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with a damp cloth.
Do not block any of the ventilation openings. Install in accordance
with the manufacturer’s instructions.
Do not install near any heat sources (including ampliers).
To prevent electric shock, do not use this polarized plug unless all the
blades can be fully inserted into the receptacle or other outlet.
Refer all servicing to the Martinsound Service Department.
For continued protection replace only with like fuse.
Information: Safety Instructions

6
Please read the following before installing and operating the unit.
Fuse replacement
120V~
For continued protection replace only with T 315 mA – 250V fuse.
(5x20mm time-delay fuse rated for 315 milliamps at 250 volts)
230V~
For continued protection replace only with T 160 mA – 250V fuse.
(5x20mm time-delay fuse rated for 160 milliamps at 250 volts)
DB25 Connectors – Pin 13
DO NOT GROUND PIN 13 ON THE FOLLOWING CONNECTORS
Other Inputs & Returns
4/2/4 Sends & Downmix Outs
These pins have +5V available for optional use with the logic command opto-isolators. (See pg. 13)
Ventilation
The MultiMAX chassis utilizes ventilation holes in the sides and top cover to provide a convective
air ow to dissipate heat generated within the chassis. Any obstruction of these holes will raise the
internal operating temperature and shorten the life of the unit.
Strain Relief
MultiMAX has nearly 100 input and output signal paths routed through the connectors on the rear
panel. If the mating cables are not suspended with proper strain relief to the rack or cabinet enclosure
housing MultiMAX, then the weight of the cables may torque and twist the front mounting ears of the
MultiMAX chassis.
Power Up State
On power up, Direct (mix bus) is selected to the Wide Inputs, Console is selected as the Monitor
Source, and the Main Monitors are selected.
All Menu Setups are stored and recalled in EEPROM.
Factory Defaults
Pressing and holding Enter and Dim while powering up the unit will restore the factory default settings
for all parameters.
Information: Important

7
Getting Connected
Introduction
The small size of MultiMAX EX belies its capabilities. With 55 inputs, 38 outputs, and 3 logic inputs,
MultiMAX EX is able to manage sophisticated monitoring setups quickly and easily. To handle that
amount of I/O MultiMAX EX utilizes DB25 connectors formatted to the Tascam standard. Addition-
ally, a logic voltage appears on the spare pin of several connectors for logic interface, if needed.
Whether using off the shelf cable assemblies or custom making your own, it is recommended that
MultiMAX EX be interfaced to a patchbay to quickly accommodate differences in formats when
needed. Tables containing the pinouts of the DB25 connectors can be found at the end of this section
for the do-it-yourself person.
Several implementations are given for utilizing the logic inputs. The logic inputs are useful for perma-
nent installations to maximize the full capabilities of MultiMAX EX, whether mixing, overdubbing,
or tracking.
For permanent installations, the logic inputs are used to maximize the full capabilities of MultiMAX
EX, whether mixing, overdubbing, or tracking. Automatic monitor dimming during talkback and auto-
matic AFL/PFL/APL bus select are just two of the features available when the logic inputs are con-
nected and enabled. Several implementations are given for interfacing the logic inputs. Consult your
console manual or manufacturer for accessing the Dim, Mute, and non-destructive Solo logic buses.
To help your understanding of MultiMAX EX a block diagram is given with its correlation to the front
panel switches. A complete description of the functions and setups is given in the Operations section
of this manual.

8
Getting Connected: Block Diagram
Source On Level Monitor System
(And Solo Mode)
L R C LFE LS RS LC RC Meter Out
CS OS
Dim Mute
LFE
Nearfield
Small Mono
8 ch. audio path
4 ch. audio path
2 ch. audio path
1 ch. audio path
Audio Inputs or Outputs on
Logic controlled switch
25-pin D-Sub connector
Main (Front)
L LC C RC R
or L C R
Alt (Front)
L C R
Main (Surrounds)
LS CS RS OS
or LS RS
Alt (Surrounds)
LS CS RS
or LS RS
LFE Filter
80Hz LPF
80Hz LPF
To LFE
or LR
To C
Monitor
Downmix
7.1 to 5.1
(fixed)
Main/Alt
Bass
Redirect
(user variable) MDAC
(x1)
MDAC
(x8)
(Production can only route to C or Small Mono)
Wide Inputs
to Stereo
Downmix
(user variable)
Wide Inputs
to LCRS
Downmix
(fixed)
Production In
Premix 3 In
Premix 2 In
Premix 1 In
Direct In
Wide Inputs Monitor Source
Playback In
Stereo Rtn
Mono
Downmix
Stereo Rtn
Mono
Wide Rtn
Console In
Wide Sends
Downmix Out
LCRS Sends
(External Process)
(Wide Inputs)
(x8)
500–2kHz
Pink
Noise
F5/S2, F3/S2
Formats Only
∑
∑
∑
Wide Sends
Other Inputs & Returns
Premix 3 Inputs
Wide Returns
Premix 2 Inputs
4:2:4 Sends & Downmix Outs
Premix 1 Inputs
Main Monitor Outs
Playback Inputs
Other Monitor Outs
Direct Inputs
Meters Outs
CAUTION!
FOR CONTINUED
PROTECTION
AGAINST A RISK
OF FIRE, REPLACE
FUSE ONLY WITH
SAME TYPE
Remote
120V 60Hz 20W
230V
250V T 160mA
250V T 315mA
50Hz 20W

9
Getting Connected: Block Diagram
Source On Level Monitor System
(And Solo Mode)
L R C LFE LS RS LC RC Meter Out
CS OS
Dim Mute
LFE
Nearfield
Small Mono
8 ch. audio path
4 ch. audio path
2 ch. audio path
1 ch. audio path
Audio Inputs or Outputs on
Logic controlled switch
25-pin D-Sub connector
Main (Front)
L LC C RC R
or L C R
Alt (Front)
L C R
Main (Surrounds)
LS CS RS OS
or LS RS
Alt (Surrounds)
LS CS RS
or LS RS
LFE Filter
80Hz LPF
80Hz LPF
To LFE
or LR
To C
Monitor
Downmix
7.1 to 5.1
(fixed)
Main/Alt
Bass
Redirect
(user variable) MDAC
(x1)
MDAC
(x8)
(Production can only route to C or Small Mono)
Wide Inputs
to Stereo
Downmix
(user variable)
Wide Inputs
to LCRS
Downmix
(fixed)
Production In
Premix 3 In
Premix 2 In
Premix 1 In
Direct In
Wide Inputs Monitor Source
Playback In
Stereo Rtn
Mono
Downmix
Stereo Rtn
Mono
Wide Rtn
Console In
Wide Sends
Downmix Out
LCRS Sends
(External Process)
(Wide Inputs)
(x8)
500–2kHz
Pink
Noise
F5/S2, F3/S2
Formats Only
∑
∑
∑
Wide Sends
Other Inputs & Returns
Premix 3 Inputs
Wide Returns
Premix 2 Inputs
4:2:4 Sends & Downmix Outs
Premix 1 Inputs
Main Monitor Outs
Playback Inputs
Other Monitor Outs
Direct Inputs
Meters Outs
CAUTION!
FOR CONTINUED
PROTECTION
AGAINST A RISK
OF FIRE, REPLACE
FUSE ONLY WITH
SAME TYPE
Remote
120V 60Hz 20W
230V
250V T 160mA
250V T 315mA
50Hz 20W

10
Getting Connected: Standard 5.1/7.1 Interface
Wide Sends
Other Inputs & Returns
Premix 3 Inputs
Wide Returns
Premix 2 Inputs
4:2:4 Sends & Downmix Outs
Premix 1 Inputs
Main Monitor Outs
Playback Inputs
Other Monitor Outs
Direct Inputs
Meters Outs
CAUTION!
FOR CONTINUED
PROTECTION
AGAINST A RISK
OF FIRE, REPLACE
FUSE ONLY WITH
SAME TYPE
Remote
120V 60Hz 20W 230V
250V T 160mA 250V T 315mA
50Hz 20W
Alt Front
L•C•R
Alt Surrounds
Ls•Rs or
Ls•Cs•Rs
Nearfield
Small Mono
Multi-Channel
Premix PB
(formatted)
Multi-Channel
Premix PB
(formatted)
Multi-Channel
Premix PB
(formatted)
Multi-Channel
Recorder PB
(formatted)
Balanced Input
Buffered
Meters
or
Console
Multi-Track
Monitor Meters
Main Front
L•Lc•C•Rc•R
or L•C•R
Main Surrounds
Ls•Rs or
Ls•Cs•Rs or
Ls•Cs•Rs•Os
Subwoofer
Console Multi-Track Buses
or Multi-Channel Mix Buses
(formatted)
Prod.
Track
Out C
2 Ch
Recorder
Out
L
R
In L R
4:2:4
Processor
In
L
C R
S
Out L C R S
Lt/Rt
Out
Out L C R S
Console
Monitor
InOut Dolby
DTS
or SDDS
Wide Processor
1 Only1 Only
Note: Each 25-pin D-SUB connector has a specified channel order. Interfacing the inputs and outputs of MultiMAX to a patchbay
will make setup easier when
the
channel order (format)
for a project does not match the
channel order
of MultiMAX EX.

11
Getting Connected: Comprehensive EX/6.1 Interface
Wide Sends
Other Inputs & Returns
Premix 3 Inputs
Wide Returns
Premix 2 Inputs
4:2:4 Sends & Downmix Outs
Premix 1 Inputs
Main Monitor Outs
Playback Inputs
Other Monitor Outs
Direct Inputs
Meters Outs
CAUTION!
FOR CONTINUED
PROTECTION
AGAINST A RISK
OF FIRE, REPLACE
FUSE ONLY WITH
SAME TYPE
Remote
120V 60Hz 20W 230V
250V T 160mA 250V T 315mA
50Hz 20W
Alt Front
L•C•R
Alt Surrounds
Ls•Rs or
Ls•Cs•Rs
Nearfield
Small Mono
Multi-Channel
Premix PB
(formatted)
Multi-Channel
Premix PB
(formatted)
Multi-Channel
Premix PB
(formatted)
Multi-Channel
Recorder PB
(formatted)
Balanced Input
Buffered
Meters
or
Console
Multi-Track
Monitor Meters
Main Front
L•Lc•C•Rc•R
or L•C•R
Main Surrounds
Ls•Rs or
Ls•Cs•Rs or
Ls•Cs•Rs•Os
Subwoofer
Console Multi-Track Buses
or Multi-Channel Mix Buses
(formatted)
Prod.
Track
Out C
EX
Processor
In
Ls
Cs Rs
Os
Out Ls Cs Rs Os
SLt/SRt
Out
2 Ch
Recorder
Out
L
R
In L R
4:2:4
Processor
In
L
C R
S
Out L C R S
Lt/Rt
Out
Out L C R
Console
Monitor
1 Only
SLt & SRt summed
externally at unity
Note: Each 25-pin D-SUB connector has a specified channel order. Interfacing the inputs and outputs of MultiMAX to a patchbay
will make setup easier when
the
channel order (format)
for a project does not match the
channel order
of MultiMAX EX.

12
Getting Connected: DB25 Pin Outs - Top Row
CH DB25 Direct Playback Premix 1 Premix 2 Premix 3 Wide
# Pin# Inputs Inputs Inputs Inputs Inputs Sends
13 Not Used Not Used Not Used Not Used Not Used Not Used
25 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
112 Direct In L– Playback In L– Premix 1 In L– Premix 2 In L– Premix 3 In L– Wide Send Out L–
24 Direct In L+ Playback In L+ Premix 1 In L+ Premix 2 In L+ Premix 3 In L+ Wide Send Out L+
11 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
223 Direct In R– Playback In R– Premix 1 In R– Premix 2 In R– Premix 3 In R– Wide Send Out R–
10 Direct In R+ Playback In R+ Premix 1 In R+ Premix 2 In R+ Premix 3 In R+ Wide Send Out R+
22 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
39 Direct In C– Playback In C– Premix 1 In C– Premix 2 In C– Premix 3 In C– Wide Send Out C–
21 Direct In C+ Playback In C+ Premix 1 In C+ Premix 2 In C+ Premix 3 In C+ Wide Send Out C+
8 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
420 Direct In Lfe– Playback In Lfe– Premix 1 In Lfe– Premix 2 In Lfe– Premix 3 In Lfe– Wide Send Out Lfe–
7 Direct In Lfe+ Playback In Lfe+ Premix 1 In Lfe+ Premix 2 In Lfe+ Premix 3 In Lfe+ Wide Send Out Lfe+
19 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
56 Direct In LS– Playback In LS– Premix 1 In LS– Premix 2 In LS– Premix 3 In LS– Wide Send Out LS–
18 Direct In LS+ Playback In LS+ Premix 1 In LS+ Premix 2 In LS+ Premix 3 In LS+ Wide Send Out LS+
5 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
617 Direct In RS– Playback In RS– Premix 1 In RS– Premix 2 In RS– Premix 3 In RS– Wide Send Out RS–
4 Direct In RS+ Playback In RS+ Premix 1 In RS+ Premix 2 In RS+ Premix 3 In RS+ Wide Send Out RS+
16 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
73 Direct In LC– Playback In LC– Premix 1 In LC– Premix 2 In LC– Premix 3 In LC– Wide Send Out LC–
15 Direct In LC+ Playback In LC+ Premix 1 In LC+ Premix 2 In LC+ Premix 3 In LC+ Wide Send Out LC+
2 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
814 Direct In RC– Playback In RC– Premix 1 In RC– Premix 2 In RC– Premix 3 In RC– Wide Send Out RC–
1 Direct In RC+ Playback In RC+ Premix 1 In RC+ Premix 2 In RC+ Premix 3 In RC+ Wide Send Out RC+

13
Getting Connected: DB25 Pin Outs - Bottom Row
CH DB25
# Pin#
13 Not Used Not Used Not Used Not Used
25 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
112
24 11 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
223
10 22 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
39
21
8 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
420
7
19 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
56
18
5 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
617
4
16 Chassis Ground Chassis Ground Chassis Ground Chassis Ground Chassis Ground
73
15
2 Chassis Ground Chassis Ground Chassis Ground Chassis Ground
814
1
Meter Other Monitor Main Monitor 4:2:4 Sends & Wide Other Inputs
Outs Outs Outs Downmix Outs Returns & Returns
Logic 5V+ Logic 5V+
Meter Out L– Alt Mon Out L– Main Mon Out L– 4:2:4 Send Out L– Wide Return In L– Console In L– Meter Out L+ Alt Mon Out L+ Main Mon Out L+ 4:2:4 Send Out L+ Wide Return In L+ Console In L+ Meter Out R– Alt Mon Out R– Main Mon Out R– 4:2:4 Send Out R– Wide Return In R– Console In R– Meter Out R+ Alt Mon Out R+ Main Mon Out R+ 4:2:4 Send Out R+ Wide Return In R+ Console In R+ Meter Out C– Alt Mon Out C– Main Mon Out C– 4:2:4 Send Out C– Wide Return In C– Console In C–
Meter Out C+ Alt Mon Out C+ Main Mon Out C+ 4:2:4 Send Out C+ Wide Return In C+ Console In C+ Meter Out Lfe– Small Mono Out– Main Mon Out Lfe– 4:2:4 Send Out S– Wide Return In Lfe– Console In S– Meter Out Lfe+ Small Mono Out+ Main Mon Out Lfe+ 4:2:4 Send Out S+ Wide Return In Lfe+ Console In S+ Meter Out LS– Alt Mon Out LS– Main Mon Out LS– Downmix Out L– Wide Return In LS– Stereo Return In L–
Meter Out LS+ Alt Mon Out LS+ Main Mon Out LS+ Downmix Out L+ Wide Return In LS+ Stereo Return In L+ Meter Out RS– Alt Mon Out RS– Main Mon Out RS– Downmix Out R– Wide Return In RS– Stereo Return In R– Meter Out RS+ Alt Mon Out RS+ Main Mon Out RS+ Downmix Out R+ Wide Return In RS+ Stereo Return In R+
Logic Ground
Meter Out LC– Nearfield Out L– Main Mon Out LC– Ext Dim Opto Lo Wide Return In LC– Production In+
Meter Out LC+ Nearfield Out L+ Main Mon Out LC+ Ext Dim Opto Hi Wide Return In LC+ Production In–
Logic Ground Logic Ground
Meter Out RC– Nearfield Out R– Main Mon Out RC– Ext Mute Opto Lo Wide Return In RC– Ext Solo Opto Lo Meter Out RC+ Nearfield Out R+ Main Mon Out RC+ Ext Mute Opto Hi Wide Return In RC+ Ext Solo Opto Hi

14
Getting Connected: Logic Interface - Example 1
13
13
25
25
12
12
24
24
11
11
23
23
10
10
22
22
9
9
21
21
8
8
20
20
7
7
19
19
6
6
18
18
5
5
17
17
4
4
16
16
3
3
15
15
2
2
14
14
1
1
DB25 MALE
DB25 MALE
PIN 14
PIN 14
PIN 7
PIN 7
VCC
VCC
Connects To:
4:2:4 SENDS &
DOWNMIX OUTS
Dim Logic Line
(Dim=+5v)
Mute Logic Line
Solo Logic Line
(Mute=+5v)
(Solo=+5v)
TO CONSOLE LOGIC
GROUND/LOW
TO CONSOLE LOGIC
GROUND/LOW
Connects To:
OTHER INPUTS
& RETURNS
Console
Logic Circuit
Example
Note 1: External Logic – Used when the console can provide logic/power
Note 2: Standard Tascam D-sub cable does not bring pin 13 through.