Chapter 6
Red Switches and Switching
6.0 Programming your VH4
It is quite easy to program your Diezel VH4, and easy to explain. Each change in the midi
program must be followed by pushing the “Store” button twice. After the first touch, the
selected red function switches will blink, then touch again and your program is in
memory. Each of the 128 programs (patches, program changes) can be changed as often
as is desired.
6.1 Preamp Channel Selection
The 4 channels of the Diezel can be selected manually by activating the red button above
each channel strip, or can be programmed via the midi control system. If you assign the
channel one switch function to a midi program ( for example “01”), then you can initiate
this channel’s switching via your midi pedal. Push “01” on your midi pedal after
programming, and the pedal will send digital information to the amplifier. The amp will
read this information and decide whether or not it is supposed to respond. When properly
programmed, it will then switch on channel one. OK, here it is again:
select 01 on your midi pedal. select channel one of the VH4. Now push “Store” twice.
Voila’, it’s a midi program! Now select program change “02” on your pedal, switch the
amp to channel two, hit “Store” twice, and suddenly you have a midi program with 2
program changes. Continue on until you run out of channels, about 2 more times.
All the other function of the amp can be programmed in the same exact way. Remember:
push “Store “ twice to finalize a midi program procedure. Select the program from the
pedal to recall it at the amp.
6.2 Inserts on/off
The “Insert” function always relates to the selected channel. If the “Insert” switch is
illuminated, then the corresponding channel insert is activated, and vice versa. You can
program this function as well, of course, for all 4 channels.
6.3 Send 2 on/off
“Send 2” is programmable as well. When activated, signal will go to the send 2 jack in the
rear of the amp. This is independent of channel selection, but programmable just like the
inserts.
6.4 Mute
“Mute” mutes the VH4 in it’s entirety. The signal will not go anywhere , not to the inserts,
not to the master sends, not anywhere. That’s why we call it “Mute”. Get it? We thought it
would be a very cool feature for tuning or guitar changes without pops and hums etc, and
without changing your volume settings every time you have to disconnect your cord.
Especially cool when your amp is somewhere on stage where you are not.
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