Tascam Professional Digital Surround Monitor Controller DS-M7. 1 Owners Manual

7 – Downmixing
  TASCAM DS-M7.1 31
5.1 > LCRS In the 5.1 to LCRS downmix, the atten-
uation values are:
5.1 > 4.1 In the 5.1 to 4.1 downmix, the attenuation 
values are:
5.1 > LR In the 5.1 to LR (stereo) downmix, the 
attenuation values are:
5.1 > mono In the 5.1 to mono downmix, the 
attenuation values are:
Source > Target Values in dB (default underscored)
LFE >C –3, –6, –9, –∞ 
LFE>L,R –3, –6, –9, –∞
Source > Target Values in dB (default underscored)
C >L,R  –3, –4.5, –6
Source > Target Values in dB...

7 – Downmixing
32 TASCAM DS-M7.1
LCRS format
As mentioned earlier, there are two LCRS configura-
tions. The first is the LCRS (LS, RS) configuration, 
This allows a control room set up for 5.1 or 6.1 to use 
an LCRS configuraiton without repatching the speak-
ers. This is possible, since the Ls and Rs speakers are 
assigned the same signal, thereby creating a “phan-
tom” Cs speaker.
The second is the LCRS (CS) configuration, where 
the LS(S) signal is assigned to the CS speaker of a 
6.1 configuration....

7 – Downmixing
  TASCAM DS-M7.1 33
LR format
LR > mono In the LR to mono downmix, there are 
no parameters (changeable attenuation values)
-3dB
L
R
C
LFE
LS
RS
RC
L
R
C
LFE
LS
RS
LC
RC
mute
mute
mute
mute
mute
mute
LC
LR to mono 

34  TASCAM DS-M7.1 
8 – Specifications
The following information is provided for reference 
when connecting the DS-M7.1 to other equipment. 
Always take care when making these connections.This shows the pinouts when viewing the rear panel 
of the DS-M7.1.
Analog connections
The pinouts for the 25-pin D-sub connectors used for 
both analog input and analog output are as follows:
AES/EBU connections
The pinouts The pinouts for the 25-pin D-sub con-
nectors used for AES/EBU I/O (insert and monitor, 
as well...

8 – Specifications
  TASCAM DS-M7.1 35
Specifications
I/O specifications
The CONSOLE, MASTER and INSERT connectors 
may each have an optional slot card selected as alter-
native I/O sources.
These slots may be filled by any of the following (but 
only one analog IF-AN/DM card may be fitted at a 
time).Also note that when such analog cards are fitted, the 
headroom should be set on the cards to 20 dB, using 
the switches and jumpers on the cards, and following 
the documentation supplied with thcards.
All...

8 – Specifications
36 TASCAM DS-M7.1
Audio performance
Analog outputs
Analog inputs
Master recorder input(AES/EBU) -> Monitor output(Analog)
T.H.D < 0.004%  1kHz 0dBFSinput, Fs=48kHz
S/N  > 113dB  Fs=48kHz, A-weight
Dynamic range > 113dB  1kHz -60dBFS input, Fs=48kHz, A-weight
Frequency response  < ±0.5dB  20Hz-20kHz, 1kHz 0dBFS input, Fs=48kHz
< +0.5/-1.5dB 20Hz-40kHz, 1kHz 0dBFS input, Fs=96kHz
Crosstalk > 100 dB 100dB1kHz 0dBFS input, Fs=48kHz
Master recorder input(AES/EBU) -> Analog insert...

8 – Specifications
  TASCAM DS-M7.1 37
General specifications
Dimensional drawings
Sampling frequencies supported: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz (as determined by incoming word clock) 
all ±6%
Word length 24 bit
Voltage requirements USA/Canada 120 VAC, 60 Hz
U.K. 240 VAC, 50 Hz
Europe 230VAC, 50 Hz
Australia 240 VAC, 50 Hz
Power consumption 32 W
Applicable electromagnetic environment E4
Peak inrush current 1.9 A
Dimensions (main unit) w x h x d 482 x 148 x 330(mm)
19 x 5.8 x 13 (in)
Dimensions (main...

8 – Specifications
38 TASCAM DS-M7.1
Making up a remote control cable
It is possible to make two kinds of remote control 
cable, allowing the front panel of the DS-M7.1 to be 
detached and used as a remote control unit.
The first type may be up to 5 m (about 15 feet) long 
(standard cable), and may use a general-purpose 
cable.The second type (extended) allows remote control up 
to 20 m (over 65 feet) away, and must be constructed 
using a specially-specified cable (described here).
No guarantee of...

8 – Specifications
  TASCAM DS-M7.1 39
Block diagram
Change!!
SPL REFERENCESurround levelLFE  GainMUTE
SRND /STST
SRND
SRNDSTSRNDST
SRNDSTSRNDSTSRNDSTSRNDSTSRNDST
MUTE/SOLO
CONTROL
MUTE/SOLOMUTE ALL
RTN
BUSRTN/BUS
INSERT
PRE SUM/POST SUM
PRE POST
INSERT
DIGITAL/ANALOG
ANA
DIG
Input summing
router1
2
3
4
5
6
7
812 34 567 8
ENABLE
DISABLE
INSERT
ENABLE/DISABLE
Output
router
L
R
C
LFE
LS
RS
LC
RC
MASTER
SEL
inout
ADCDAC
inoutinout
RCVDRVRCVDRV
AES
ADAT
Tracking
recorder
I/OConsole I/OMaster
recorder
I/O...

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