The V-Mixing System uses the REAC protocol between the stage units and console using a
simple Cat5e cable connection instead of bulky, heavy multi-core analog snakes. The Cat5e
connection is also immune from the hums buzzes and cross talk associated with analog
snakes. With no configuration required, simply plug the Cat5e cable from the stage units
to the REAC A & B ports located on the rear of the M-400 V-Mixer and the system is
ready to go.
Quick and Easy Installation and Setup
Intuitive and Easy Operation
The M-400 V-Mixer features 25 x 100mm motorized, touch sensitive faders; a large, bright 800 x
480 color screen; dedicated knobs for EQ, Pan, and Gain; and Scenes for total recall of all console
settings. Designed for all operator levels, the intuitive interface is quick to navigate and easy to
learn and even has an onboard Help system. The V-Mixing System is the answer for high quality,
cost-effective live digital audio mixing and control.
Superb Sound Quality
The V-Mixing system uses Cat5e-based REAC technology to convert the audio
to digital on stage using high quality 24-bit remote-controlled mic pre-amps.
Because the V-Mixing System is all digital, the integrity and sound quality of
the audio signal is maintained from the stage units to the M-400 V-Mixer and
back to the outputs for connection to amps and speakers without the high
frequency and intelligibility losses found in analog cabling.
RF
AC
ANALOG
RF
AC
(DIGITAL)
Digital Transfer can minimize signal’s damage
Analog Multi Cable
Digital Snake
Supports advanced integrated applications
Use the optional S-OPT Optical converter to send signals up to 2 kilometers using fiber
cable. Using REAC, up to 40 channels of multi-track audio can be recorded by simply
connecting a Cat5e cable from the REAC Split port on the M-400 V-Mixer to a gigabit
network port on your PC running Cakewalk’s SONAR software. By using Roland’s V-LINK
protocol you can connect the V-Mixing System to the Edirol V-440HD Multi format Video
Mixer for a completely integrated audio and video performance solution.
Up to 40 channels over lightweight Cat5e
Heavy analog multi core cable requires large, expensive conduit
for installations, and suffers from high frequency losses and
potential for induced
hums and buzzes.
REAC’s transfer
protocol provides
pristine digital audio in
a very light weight,
inexpensive and easy to
install cable format.
One S-1608 and one S-4000S-3208 Digital Snake on stage side would
provide more physical inputs
A simple and affordable system to use one S-1608 Digital Snake on stage
Standard system consists of 2 S-1608 Digital Snakes on stage
32ch XLR
16ch XLR
S-1608 x 2
M-4 0 0
Phones
8ch XLR
8ch XLR
2ch Digital
2ch RCA
40ch
8ch XLR
16ch XLR
S-1608
M-4 0 0
Phones
8ch XLR
8ch XLR
2ch Digital
2ch RCA
40ch
8ch XLR
16ch XLR
8ch XLR
32ch XLR
S-4000S-3208
S-1608
REAC A
REAC B
M-4 0 0
Phones
8ch XLR
8ch XLR
2ch Digital
2ch RCA
REAC A
REAC B
* 48 input channels must be selected from 58 physical inputs via the M-400 patchbay.
Standard System
Basic System
Expanded System*
Digital Audio Transfer & Mixing System
In addition to improving a system’s overall audio quality,
the V-Mixing system is very cost effective to install.
The system’s digital advantages of total recall,
built-in effects and recording bring many benefits to any mixing installation.
The REAC digital transfer technology used on the 48-channel
M-400 V-Mixer establishes a new era in live audio mixing.
Next Generation of Simple, High Quality Audio Transfer
REAC (Roland Ethernet Audio Communication) is Roland’s original technology for low latency, high
quality digital audio transfer. Products using REAC technology are installed today in many venues and
have been used for high profile events worldwide. REAC technology provides many system advantages.
Multi channel transfer with high quality audio
REAC transfers 24-bit uncompressed multi channel audio with very
low latency. REAC technology eliminates the typical problems found in
analog transfer such as signal quality degradation or hums and
buzzes. In addition, since REAC transfer happens over light weight
cable and is immune to externally induced noise, designers and
integrators have more freedom for cable placement resulting in
lower cost installations.
* REAC driver must be installed on PC for multi-track recording.
* The number of recording tracks may differ depending on the PC performance.
SONAR
24-bit multitrack recording to PC via REAC
Using a Cat5e cable, simply connect a PC to the REAC split port on the
back of the M-400 V-Mixer. Take inputs and buses from/to stage in their
original digital form for up to 40 channels of multitrack recording.
Integrate a high quality recording system with unprecedented ease at an
affordable price.
Analog Multi Core Cable
Cat5e cable for REAC
REAC connection
Example of analog
connection
Output Impedance : 2 k ohms (without direct box)
Output Impedance : 600 ohms
20
2
dBr
RMS CH1,
vs
GEN FREQ /Hz
ANL 1: TERM 2: OFF
SWP TERMINATED
1
0
–2
–4
–6
–8
30 50 100 200
500
1k
2k 3k 5k
10k 20k
20
2
dBr
RMS CH1,
vs
GEN FREQ /Hz
ANL 1: TERM 2: OFF
SWP TERMINATED
1
0
–2
–4
–6
–8
30 50 100 200
500
1k
2k 3k 5k
10k 20k
V-Mixing System
Analog Transfer
●
Frequency Response Comparison
V-LINK connection with V-440HD Video Mixer
Preamps on stage boost the input gain before the long journey
In analog transfer systems, low
level mic signals must go long
distances before they are
amplified. With the REAC system,
the input signal is amplified on
stage, right next to the source,
and then converted to a lossless,
24-bit digital signal. This REAC
audio signal can then be
transferred without degradation.
So direct boxes are not required.
* The number of recording tracks may differ depending on the PC performance.
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