Enable new Digital Snake possibilities by merging up to four REAC devices. The S-4000M REAC Merge Unit allows up to four Digital Snake heads to be merged into a REAC stream where the master device recognizes it as single REAC slave unit. This important technology enables distribution of multiple input/output units around a location, venue or stage for flexible point-to-point digital snake or V-Mixing System configurations.

2. Merge up to four REAC devices together
The S-4000M merges up to four Digital Snake heads, such as the S-0808, S-1608 and S-4000, and merges the input/ouput to a single REAC signal. Ports 1 to
4 supply REAC embedded power to compatible product such a s the S-0808. The intelligent Auto Map function assigns input channels automatically. REAC
master devices recognize the S-4000M as a single REAC slave unit even when multiple digital snake heads are connected.

3. Distribute outputs to multiple devices
The S-4000M also serves as a distributor of outputs and/or splitter. Any inputs returning from Port 1 (Master) are distributed to the outputs depending on
the devices connected. When S-0808 sare connected, specific output assignments can be set.

4. Configure Routing from a PC or V-Mixer.
The M-400 / M-380 V-Mixer or dedicated PC Remote Control Software (S-4000RCS) configures routing, input gain, PAD and phantom power.
S-4000RCS Remote Control
Software for Mac or PC.
M-480 Live Mixing Console

5. Configuration Example - Self-powered Digital Snake System
REAC REAC
REAC REAC
S-0808 S-0808
S-0808 S-0808
Front of HouseStage
S-4000M
Inputs : 16
Outputs : 16

6. Configuration Example - Simple Broadcasting/Location Sound System
Simple system setup using a pair of S-0808s. The S-4000M in a Broadcast Truck (OB Van) provides power to the remote location. Control the remote inputs
using the S-4000R.
Inputs : 8
Outputs : 8
REAC REAC
S-0808 S-0808
S-4000M
S-4000R
1-8ch1-8ch
Other Console
Shooting Area
Mobile Van
1-8 ch
1-8 ch

7. Configuration Example - Broadcasting System in a Large Space
This system allows I/O to be place in 4 separate locations using S-0808s. The signals from the 4 units are merged by the S-4000M as it travels to the S-4000H
breakout location. Power to each of the S-0808s is supplied by the embedded power over REAC in the S-4000M.
REAC
REAC
REAC
REAC
S-0808
S-0808
S-0808
S-0808
S-4000M
S-4000H
S-4000R
1-8ch1-32ch
Other Console
Shooting Area A
Mobile Van
1-8 ch
1-8 ch
Shooting Area B
1-8 ch
9-16 ch
Shooting Area C
1-8 ch
17-24 ch
Shooting Area D
1-8 ch
25-32 ch
Inputs : 32
Outputs : 8

8. Configuration Example - Live Stage Mixing System
This system enables the placement of S-0808 units around a stage conveniently located by the drum riser, keyboards, background vocals, etc.
REAC 100m
REAC
REAC
REAC
REAC
S-0808
S-0808
S-0808
S-0808
S-4000M
M-300
Front of House
Stage
Inputs : 42
Outputs : 42
1-8 ch
1-8 ch
1-8 ch
9-16 ch
1-8 ch
17-24 ch
1-8 ch
25-32 ch

9. Configuration Example - Small Trio with Personal Mixing
S-0808
S-0808
PC with Control
Software S-4000RCS
Stage
Inputs : 8
Outputs : 8
S-4000M
AC PoE Injector
Front of House
USB - RS-232
Other Console
1 8
REAC
M-48Powered
Speakers
M-48 M-48

10. Configuration Example - Audio Installation
This system enables a variety of digital snakes to be used in an installation where many inputs or outputs may be required around a venue. Using the
routing ability within the S-4000M, assign or patch to any input - all controlled via the V-Mixer.
REAC
100m
REAC
100m
S-0808
S-0808
S-4000MS-4000S-3208 S-4000S-0832
S-1608
PC with Control
Software S-4000RCS
USB -
RS-232
M-480
Front of House
Front of House
Stage
Inputs : 40 (From 64 Available)
Outputs : 8 (If Digital Snake)
: 24 (If V-Mixer)
40 in
24 out
REAC
REAC
REAC
REAC
OR
V-Mixer Option
Other Console Option
Using Digital Snake
Other Console
1-8ch1-40ch

11. Configuration Example - Expanded M-480 System with Personal Mixing and Extra I/O at FOH
S-0808
S-4000M
S-4000S-3208
M-48
M-48
M-48
M-48
M-48
M-48
M-48
M-48
S-1608
S-4000D
M-480
REAC BREAC A
Stage
Front of House
66 Inputs : 48 Stage + 18 Front of House
26 Outputs : 16 Stage + 18 Front of House
Personal Mixers : Up to 8 per S-4000D
(Connect multiple S-4000Ds
inline to enable more M-48s)
1
8

12. Part of The V-Mixing
System Total
Integrated Solution
REAC (Roland Ethernet Audio
Communication) technology is the
cornerstone of the V-Mixing System.
REAC is Roland’s original technology
for low latency, high quality digital
audio transfer. REAC is an Ethernet
based technology that enables multiple
components to be easily integrated
using lightweight Cat5e/6 cable. With
just a single inexpensive cable, 40
input x 40 output channels of 24-bit
uncompressed audio data (including
level and control information) are
transferred.
Digital Snakes
Enjoy superior clear sound, great intelligibility with
minimal latency and the freedom to split or extend
your audio sources anywhere.
Bridging
The S-MADI REAC Bridge enables connectivity
b e t w e e n M A D I - e q u i p p e d d i g i t a l a u d i o
mixers/systems to any REAC-based devices.
Personal Mixers
The M-48 is the “next generation”
live personal mixer that offers
musicians the flexibly to control
exactly what they want to listen to
during their performances.
REAC Driver
The REAC driver enables users to
capture up to 40 audio channels from
a Digital Snake or V-Mixing System
directly into most ASIO-based DAWs
via Cat5e/6 cable.
Recording
Multi-channel recording and playback,
including virtual rehearsal is accomplished
with reliability and stability using the dedicated
R-1000 48-Track Recorder/Player.
R-1000
48-TRACK RECORDER/PLAYER
S-RDK
Roland REAC Driver
S-MADI
REAC MADI BRIDGE
M-48
LIVE PERSONAL MIXER
Digital Consoles
Boasting powerful mixing engines to support multiple channels, buses, EQ, effects,
dynamics processing and unprecedented digital patching, the V-Mixer lineup
represents a premium console choice. More than a digital mixing console; it is the
heart of a V-Mixing System ideal for any live event applications in corporate, church,
education or rental/staging environments.
your audio sources anywhere.your audio sources anywhere.

13. Dimensions
UNIT : mm
356.3
340.8
218
86.5