The
Impedance
mode let´you check your speaker´s impedance. Other impedances
than the mentioned ones on your speaker could point to malfunctions. Checking the
speakers before using them is helpful.
It´s important to know, that the impedance mode will disable the out pot in order to get
a fixed signal value at the NL4 connector.
You can also change the output between 1+/1- and 2+/2- of the NL4 connector on the
display of your Mini Audio Lab V3.
The impedance will be indicated between 1 Ohm and 25 Ohm. Please note that an
empty battery will affect the result!
There can be a need of calibrating the Impedance: You can calibrate the impedance by
using a small screwdriver and adjust the potentiometer which is placed directly under
the little hole at the bottom side of the Mini Audio Lab V3.
For calibrating you can create our own Calibrating Plug like we did:
Use a NL4-Speakon plug (it can be an old one as well...). Now screw an 5
Ohm resistor between the 1+ and 1- Pins, and a 10 Ohm Resistor
between
the 2+ and 2- pin. Ready!
With the
Inline
mode you can check the phantom power voltage at Pin 2 and Pin 3.
The indicated voltage has to be the same on Pin2 and Pin3. The phantom power is fine
if the voltage is just above 34Volt. Excepting a connected condenser microfone to the
input. A condenser microfone will reduce the indicated value, because of sucking
power.
You also can listen via headphone to the xlr mic. - or line signal in the
Inline
mode
when you switch on the "Mon.on" button.
With the just declared function of „listening“ to the Signal in the Inline Mode (Mon.
On!) you can use this device as a
1 channel in ear system
as well. Plug the
Monitor-Signal into the Jack or the XLR Connector and your headphone to
the phone Plug. Don´t forget to connect an external power supply if you use
it as in ear system. A constant use will suck the battery empty soon...
The
Cable/Bat
mode is made for checking cables and also Batteries. On the rear of the
Mini Audiolab V3 are two Jacks for plugging the delivered measuring cables.
Just hit the same Pin on both ends of the cable and the Mini Audiolab V3 will show you
if the chosen Pin is okay. You can directly check a
battery voltage
by holding the red
cable to the + and the black cable to the -. The battery voltage will be indicated at the
Display.
We know, if there´s no signal, everyone will first change the cable and sometime´s in
okay after changing. With the Mini Audio Lab V3 you have an easy way to check your
cables „on the road“. So if your cables are okay, your smart enough to tell your
stagehands arrogantly that it has been their fault, not yours...
By the way: You can also check your microfone cables in the Inline-Mode! Only
an unimpaired cable can use phantom power. So, if the Displays shows no
phantom power or great differences between Pin 2 and 3 you should not use this
cable (of course, you first have to make shure, that the phantom power comes
out correctly from your desk...)
Mini Audiolab V3 manual
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