Rear Panel; Controls And Settings - Phonic HELIX BOARD 18 FIREWIRE MKII Manual Del Usuario

Rear Panel

11. Channel Inserts
Located on the rear of the Helix Board 18 FireWire MKII, 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 through to 6. This will require a Y cord
that can send (pre-fader and pre-EQ) and receive signals to
and from an external processor. The tip of the TRS plug is for
sending of the signal to the external device, the ring is for return
of the signal to the Helix Board 18 FireWire MKII, and the Sleeve
is the grounding.
12. Control Room Outputs
These two 1/4" phone jack outputs feed the signal altered by the
Control Room / Phones level 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, for the monitoring
of the audio signal from within a booth, or, alternatively, for the
addition of external signal processing devices or mixers, as well
as acting as a "side fill" output, supplying audio to indoor areas
that the main speakers do not reach. When using the FireWire
interface, this output can be elected to be fed the audio signal
from the Computer, for monitoring of recording audio.
13. Foot Switch Jacks
These ports are for the inclusion of an unlatched foot switch,
used to remotely adjust properties of the built-in Digital Effect
processor. The jack on the right is used to turn the Digital Effects
on and off, whereas the jack on the left is used for adjusting tap
delay properties.
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14. Main XLR Outputs
These two XLR ports will output the final stereo 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).
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15. S/PDIF Output
This RCA S/PDIF (Sony / Phillips Digital Interface) jack is for
the output of digital audio signals, allowing the Main L&R audio
from the mixer to be passed to another device without having
to convert the signal from digital to analog and back again. The
output sampling rate is permanently set to 44.1 kHz per second
when no FireWire connection is made. If the FireWire output is
connected to a computer, than the S/PDIF output sampling rate
will be the same as that set by the Helix Board Control Panel
software.
16. FireWire Connections
The two FireWire connectors are for linking the Helix Board
18 FireWire MKII to a PC or Macintosh computer. It will allow
16 channels to be streamed to the computer (the amount of
channels you are able to record simultaneously depends on the
DAW software used), and 2 audio channels of the computer to
be returned to the mixer. Please observe the FireWire section of
this manual for more information.
17. Power Connector
This port is for the addition of a power cable, allowing power to
be supplied to the mixer. Please use the power cable that is
included with this mixer only. The Helix Board 18 FireWire MKII
features a switching power supply, suitable for all zones.

Controls and Settings

Rear Panel
18. Phantom Power Switch
When this switch is in the on position, it activates +48V of
phantom power for all microphone inputs, allowing condenser
microphones (well, the ones that don't use batteries) to be
used on these channels. Activating Phantom Power will be
accompanied by an illuminated LED above the left channel Level
Meter. Before turning Phantom Power on, turn all level controls
to a minimum to avoid the possibility of a ghastly popping sound
from the speakers.
NB. Phantom Power should be used in conjunction with balanced
microphones. When Phantom Power is engaged, single ended
(unbalanced) microphones and instruments should not be used on the
Mic inputs. Phantom Power will not cause damage to most dynamic
microphones, however if unsure, the microphone's user manual should
be consulted.
19. Power Switch
This switch is used to turn the mixer on and off. Ensure you turn
all level controls down before activating.
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HELIX BOARD 18 FIREWIRE MKII
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