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3.4.5
Line In Trim
Line In Trim can be set to any of eight preset trim settings. The Line In Trim button shows the currently selected trim level, the same
for the Left and Right inputs.
There are four Pro Level settings: +18 dBu; +20 dBu; +22 dBu; and +24 dBu. There are four additional levels most often used on
Consumer Audio products: +0 dBV; +2 dBV; +4 dBV and +6 dBV.
When the button is pushed, a Selection Window pops up. Pushing the desired Level button resets the inputs and immediately indicates
this on the Line In Button. You will typically hear a relay click from inside Hilo when a selection is made.
Note
: These are 0dBFS (full-scale) level settings, as opposed to nominal levels.
Trim pots are available to fine tune these inputs. See Appendix 5.2 for more information.
3.4.6
Line Out Trim
Line Out Trim can be set to any of eight preset trim settings, the same as for Line In.
This works exactly the same as the Line In Trim. Push the button and make your selection.
Note
: Each Line In and Line Out Trim can be adjusted ±0.5 dB of the established trim settings using the trim pots that are located on
the bottom of the circuit board. See
Section 7.3: Setting Trim Pots
for more information.
3.4.7
Digital In Source
Hilo offers a choice of AES or S/PDIF as the digital input
source. With S/PDIF you have the option of Coax or
Optical Inputs.
Before being pushed, this button shows the current
selection. Upon pushing the button, you can select:
AES; S/PDIF Coax; or S/PDIF Optical. If selecting
SPDIF Optical, the Optical Out mode must be set to
SPDIF. See
Section 3.4.4
.
Note
: You do not need to make this choice for outputs, as
all three digital outputs are independently available and
assignable.
