
Knucklehead Reverb 1.0 p 12
Midi Cables For The Special Combo Connector
Even though the MIDI specification only defines three pins, most manufacturers of MIDI
cables provide all five wires. This means that most normal MIDI cables will work
correctly in the special connector. However, if you find a MIDI cable that only has 3
wires, it will not work.
A Few Thoughts On Non-Standard Connectors
When we designed the Head Master, we faced a difficult decision. We wanted to supply
power to the pedal from the amplifier using one cable for both power and MIDI. We then
had two choices - Use a standard MIDI connector in a non-standard way, or use a non-
MIDI connector.
If we had used a non-MIDI connector, the unit would have been more foolproof. The
special combo MIDI and Power connector could ONLY be connected using the special
cable. There would be no way to hook it up incorrectly.
But then we thought about the poor guy on the road, far from a well-stocked music
store. If his special cable failed, he would be out of luck. We decided to use a standard
MIDI connector and cable in a non-standard way because it is very easy to find a
replacement.
Of course, the downside of this decision is that it is possible to connect our non-
standard connector to a standard MIDI connector. If the MIDI device only uses the three
standard pins, there will be no problem. However, some manufacturers have also used
the two extra pins for their own special non-MIDI functions. We believed that if we
warned the users to hook up the cables according to the instructions, they would accept
this tradeoff.
The Two Midi Inputs Are Not A Midi Merger!
The Knucklehead has two MIDI inputs - one regular MIDI IN and a special Combo MIDI
IN and DC Power Out.
The special Combo connector is used with the Rivera Head Master.
The standard MIDI IN is used with other MIDI controllers.
WARNING: DO NOT USE BOTH INPUTS AT THE SAME TIME!
The Knucklehead DOES NOT contain a MIDI MERGE function!
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