User Manual
Table Of Contents
- Manual Neos
- Symbols and Notes
- Scope of Delivery and Packaging
- Introduction
- Important Security Advices
- Hook Up
- Rear Panel – Switches & Connections, Basics
- Rear Panel – Power Wiring Diagram
- Rear Panel – Signal Wiring Diagram
- Rear Panel
- Operation
- Control Elements Input Path
- Control Elements Master Path
- DAW-Integration
- Specifications
- Copy Master Recall Settings
- Block Diagram
- Mounting Dimensions
- Mounting Angles
11
Neos
Rear Panel – Switches & Connections, Basics
GND Lift
The rear panel GND LIFT switch eliminates hum by separating the internal ground from the
unit’s housing ground. Hum can, for example, result when this unit’s housing has a common
ground connection with other devices that might have a different ground potential. The
switch is usually deactivated to retain the shielding of the housing.
XLR Sockets
All signal connections are made via balanced or unbalanced XLR sockets. Pin wiring is shown
in the diagram below. Inputs are always female and accept male connectors; outputs are
always male. All in all, a comprehensible principle.
DB 25 Sockets
All 24 inputs are distributed on three eight-channel, female DB25 sockets. The connectors are
balanced and adhere to the Tascam standard (details on page 12).
Balanced Connections
In balanced connections a reference signal with reversed polarity is transmitted additionally
to the audio signal through a second wire. The ground signal is routed separately through
a third wire. Input and output stages are drivers and receivers, and the receiving stage can
suppress possible interferences by subtracting the difference between audio and reference
signal. The Neos employs electronic balancing stages (no transformers).
Unbalanced connections (TS and RCA connectors)
Unbalanced connections from and to RCA or 1/4" TS sockets can be made without adaptors to
the balanced XLR sockets. The correct wiring is important. The diagram shows the pin config-
uration of the XLR sockets and how to correctly connect them for unbalanced connections:
Connections to RCA sockets are always unbalanced, a wiring to jack connectors can be both
balanced (1/4" TRS/stereo jack) or unbalanced (1/4" TS/mono jack). We recommend to use
individually configured cables from XLR to RCA or jack sockets instead of adaptors. You can
get cables in any needed configuration from audio dealers. With the diagram above, the
dealer can ensure to provide the appropriate cable for your application.
Input
Output
balanced
unbalanced
balanced
unbalanced
1=GND
2=hot (+)
3=cold (-)
1
2
3
1
2
3
1
2
3
1
2
3