Hex & CC Commands?

Morningstar Gear MC6 Pro MIDI Controller
1

I’m not sure if this is the appropriate board to post this question, but I have the MC6 Pro, so I’ll start here. Please move it if appropriate.

I have a Revv D40 amp that is MIDI control-able. But the manual lists many of the commands that turn features on/off (0-63=off and 64-127=on) in a table in hex values and numbers like this:
Function | Value|Column 1 | Column 2 | Column 3|
|— | — | —|
|Function | Value | |
| | Hex | Decimal|
|Masters | (0x1B) | 27|
|Bright | (0x1D) | 29|
|Reverb | (0x1F) | 31|
|FX Loop | (0x23) | 35|

Does this mean to turn Reverb on I would send a CC number 31 and a value of 64-127? If so, I can’t seem to get it to work. Why do they include the Hex value? A converter I found online says Hex (0x1F) = 31. Why the redundancy?

Thanks!

2

Is this what you meant for the table to look like?

Function Value (Hex) Value (Decimal)
Masters 0x1B 27
Bright 0x1D 29
Reverb 0x1F 31
FX Loop 0x23 35
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3

So I don’t know for sure as I don’t have this piece of gear, but from my background in engineering my guess is that the hexadecimal value is solely to help them when configuring the device. I could be wrong but for your use case with the MC6 Pro it may not mean anything and I would personally just use the decimal value when configuring your MC6 Pro.

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4

I looked up the manual and personally I would just try using the decimal values for CC # and then apply 0-63 for OFF and 64-127 for ON. That should work fine!

Hexadecimal (base 16) is just a different notation than decimal (base 10) and isn’t really providing and new and useful information in this case.

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5

Yes it is just a different notation. They probably just added both just for easier reference.

Just to add:

  • if the number is prefixed with 0x i.e. 0x23 then it is a hexadecimal
  • no prefix, you can assume its decimal
  • Binary is prefixed with 0b or b i.e.0b1101
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