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DX810 – 10
Bus A and B Input Trim
There is no metering after the BUS A and B
input TRIM controls. These controls must be
adjusted by ear. Start the program source playback
for all sources connected to the BUS A or BUS B
input. Slowly increase the TRIM control to the
center position (12 o’clock), which is unity gain.
Then adjust the TRIM control up or down to attain a
balance within the total mix at the A and B outputs.
Accessing the Digital Signal Processors
The DX810 has five powerful floating-point 32-bit
digital signal processors (DSPs) to implement the
digital audio processing functions. Access the
processing windows by clicking on their buttons in
the Button Section, or double-clicking on the DSP
name in the Input Proc or Output Proc windows.
• Input 3-Band Shelving EQ With Parametric
Mid-Range Control
• Output 8-Band Parametric EQ
or
• Output 31-Band 1/3 Octave Graphic EQ
• Input/Output Compressors
• Input Gate
• Output Delay
• Crossover
Plug-Ins
A number of software plug-ins will be available
to download to the DX810 via the COMM PORT
connection to a PC. Plug-ins can be used along with
the EQs and compressor described above. Check
the Mackie website at www.mackie.com for
availability.
Using Inputs 1-8
Connect the microphones or program sources to
Inputs 1-8. Examples of program sources include a
CD player, tape deck, tuner, satellite feed, TV audio,
jukebox, or other audio source. Each input has a
separate Phoenix-type connector for a mic or line-
level input.
TRIM
Use the TRIM control to adjust the gain of the input
preamp stage according to the level of the input signal.
Refer to the “Quick-Start” section (Set the Levels) for
instructions on how to set the TRIM controls.
LEVEL
The up/down arrow buttons on each channel are
used to adjust the mix level for each channel going
to the A and B outputs (use the on-screen faders for
outputs C-J). Use these to fine tune the mix or
relative loudness of each input signal that is
connected to the DX810.
When adjusting these buttons, the channel
meter indicates the gain of the channel relative to
the maximum gain of +10 dB. After 5 seconds, the
meter reverts back to indicating the actual input
signal level of the channel. This metering is pre-EQ
and pre-LEVEL control.
Unity gain is indicated when the –10 and –7 dB
LEDs are both lit on the meter (or “U” on-screen).
EQ
Each Input 1-8 has a 3-band shelving EQ with a
parametric mid. This is adjustable from the PC only.
It provides 15 dB of boost or cut with user
selectable corner and center frequencies (LO: 20
Hz-500 Hz; MID: 20 Hz-20 kHz HI: 500 Hz-20 kHz).
Using the BUS A and B Inputs
These inputs provide a direct analog connection
to the BUS A and B buses. These input points are
post-DSP and post-D/A converter, and accept a
balanced analog line-level signal. Use these to connect
an additional program source to a zone, or to connect
the Zone A and B outputs from another DX810.
TRIM
Use the TRIM control to adjust the signal level at
the BUS A and B inputs. Typically, this control
would be set to the center detent position (unity
gain). However, it can be adjusted up or down by 20
dB to achieve a balance between the signal at the
BUS A and B inputs, and the signal on the internal
A and B buses.