Phonic HELIX BOARD 12, User Manual

Page: 5 / 52

5 HELIX BOARD 12 UNIVERSAL
MAKING CONNECTIONS
Inputs and Outputs
1. XLR Microphone Jacks
These jacks accept typical 3-pin XLR
inputs for balanced and unbalanced
signals. They can be used in
conjunction with microphones – such
as professional condenser, dynamic
or ribbon microphones - with standard
XLR male connectors, and feature low
noise preamplifiers, serving for crystal
clear sound replication. The Helix
Board 12 Universal mixers feature a total of four standard XLR
microphone inputs.
NB. When these inputs are used with condenser microphones, the Phan-
tom Power should be activated. However, when Phantom Power button
is engaged, single ended (unbalanced) microphones and instruments
should not be used on the Mic inputs.
2. Line Inputs
This input accepts typical 1/4” TRS or TS inputs, for balanced
or unbalanced signals. They can be used in conjunction with
various line level devices, such as keyboards, drum machines,
electric guitars, and a variety of other electric instruments.
3. Stereo Channels
The Helix Board 12 Universal mixer features a couple of stereo
channels, thrown in for maximum flexibility. Each of these stereo
channels features two 1/4” TRS phone jacks, for the addition of
various line level input devices, such as electronic keyboards,
guitars and external signal processors or mixers. These Stereo
Channels can also be used as Mono channels, where the signal
from any 1/4” phone jack plugged into the Left stereo input will be
duplicated to the Right input due to the miracle of jack normalizing
(this does not work in reverse, however).
4. Stereo AUX Return
These 1/4” TS inputs are for the return of audio to the Helix Board
12 Universal mixer, processed by an external signal processor. If
really needed, they can also be used as additional stereo inputs,
with a level control located on the face of the mixer. The Stereo
AUX Return can also accept Mono signals, where plugging the
1/4” phone jack of any device into the Left input will cause the
signal to be duplicated to the Right input also (this does not work
in reverse, however). Signals processed by the built-in digital
effects processor are cut-off when any 1/4” phone jack is plugged
into the AUX return 2.
5. AUX / Effects Send
These 1/4” TS outputs may be used to connect to an external
digital effect processor, or even to an amplifier and speakers
(depending on your desired settings), to the mixer. The AUX
send is a pre-fader signal, suitable for sending to monitors to
allow performers to monitor their music. The EFX send signal is
post-fader, suitable for sending to external effect processors, and
then return back to the AUX returns.
6. Main L and R Outputs
These two ports will output the final stereo balanced line level
signal sent from the main mixing bus. The primary purpose of
these jacks is to send the main output to external devices, which
may include power amplifiers (and in-turn, a pair of speakers),
other mixers, as well as a wide range of other possible signal
processors (equalizers, crossovers, etcetera).
7. Control Room Outputs
These two 1/4” Phone Jack outputs feed the signal altered by
the Control Room / Submix control on the face of the mixer. This
output has extensive use, as it can be used to feed the signal
from the mixer to an active monitor, enabling, for instance, the
monitoring of the audio signal from within a booth.
8. Phones
This stereo output port is suited for use with headphones,
allowing monitoring of the mix. The audio level of this output is
controlled using the Control Room / Submix rotary control.
9. Record Out
These outputs will accommodate RCA cables, able to be fed to a
variety of recording devices.
10. 2T Return
This stereo RCA input is used to connect the mixer with external
devices, such as tape and CD players, and feeds the signal to
the Main L-R mixing bus.
Rear Panel
11. Channel Inserts
Located on the rear of the Helix Board, the primary use for these
TRS phone jacks is for the addition of external devices, such
as dynamic processors or equalizers, to mono input channels
1 and 2. This will require a Y cord that can send (pre-fader and
pre-EQ) and receive signals to and from an external processor.
On this connection, the tip pin is for sending the signal, whereas
the ring pin is for return. The sleeve pin, on the other hand, is
the ground.
12. ALT 3-4 Output
The signal sent from these 1/4” outputs is fed from the ALT 3-4
mixing bus, and can be used in conjunction with a large array of
devices, including signal processors, other PA systems, recording
devices, and so on.
13. Foot Switch Jacks
These ports are for the inclusion of a foot switch, used to remotely
adjust properties of the built-in Digital Effect processor, to the
mixer. The left jack is used to adjust the tap delay properties,
whereas the right jack is used for turning the effects on and off.
1
2
3
4 5 6 7
10 9
8
13 12 11