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R/C Manual 2. USING MIDI
2. Using MIDI

2.1 DIRECT MIDI CONTROL

MIDI control can be piped directly to a 1788A’s MIDI Input port from any suitable
controller. Suitable controllers are devices such as mixing or lighting consoles or stand-
alone MIDI controllers that have programmable physical controls such as pushbuttons and
sliders which can send SysEx strings to a MIDI port.
2.1.1 Determining Channel & Device Numbers
Channel & Device
You will need to establish channel and device numbers on your 1788A’s. The objective
is to choose channel and device numbers that are not used by any other MIDI devices
connected to the controller’s MIDI output port. If your 1788A constellation is the only
thing on the controller’s output port, then you can take channel 1 for all 1788A’s and give
them each a unique device number. The device numbers don’t need to be sequential or
contiguous, but they need to be unique. You will need to know these numbers in order to
identify which preamp you want to access when programming the MIDI controller later
on, so write down this information when you set up your 1788A’s.
2.1.2 Procedure for Setting The Numbers
1. Place the 1788A in Local control.
2. Press Mode to select MIDI.
3. Press Set I.D. to select Ch. (Channel)
4. Press Adjust/Store. It will light up.
5. Set the displayed number using the Adjust dial.
6. Press Set I.D. to select Dev. (Device)
7. Repeat step 5.
8. Press the Adjust/Store button again. It will store
the new numbers and the button light will go off.
NOTE: With direct MIDI control there will be no LAN connection. Therefore the NET
number is irrelevant and can be set to anything.
Refer to section 4.2 of the 1788A Instruction Manual for more information about
setting the Channel, Device, and Net numbers if you are experiencing difficulty.
2.1.3 1788A’s Direct MIDI SysEx Strings
Direct MIDI SysEx strings are exactly the same as the parametric strings used for indirect
MIDI control (described later). When filling in the three bytes in the grayed area, refer to
reference data at the end of this chapter. See figure 2-3.

Ch_01

dn_03
nn_03
Device
Net
Fig. 2-2. 1788A Control Panel
(Irrelevant with
direct MIDI Control)
MIDI Out In
Next
MIDI Controller 1788A 1788A
Fig. 2-1. Direct MIDI Control Hook-up
Thru In Thru