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4. APPLICATIONS
This section includes some very useful tips for the applications of your
Stereo Microphone Preamplifier. Please read it carefully to get the most out of your
MICtube.
5.1 The
MICtube as A Microphone Preamplifier
It is the PRINCIPAL application for your
recommend that you study the functions of the unit first as described in this
Manual. The high gain factors (+30 dB) provided by the microphone preamplifier
can produce extremely high output levels which may damage other devices
connected to the unit. So you should turn down all the level controls beforehand,
or you can press the -20 dB PAD (5) to attenuate the incoming signal level about
20 dB. At this point you can hook up a microphone to the XLR and 1/4" COMBO
Input (6), using either the jack or XLR output connectors. Now, power up the
unit; if you wish to use a condenser MIC requiring +48V phantom power, please
press the Phantom Power Switch (3) (to avoid electric damage, please read
Control Elements "Phantom Power Switch" carefully). After that, please adjust
your Input Gain Control and Drive Control to get the best result.
5.2 The
MICtube as A Direct-Injection Box ( DI Box )
When audio signals produced by instruments such as guitars, keyboards, etc. are
transported over long unbalanced lines, the resulting quality may be affected by
Hum or other noises induced in the cable. DI Box ( Direct injection box ) is used
to solve this problem: A DI Box converts the unbalanced signal coming from the
instrument into a balanced signal. Using the
easy. Simply connect the line output of your instrument to the XLR and 1/4" TRS
COMBO Input on the front panel of your
to send the balanced signal to the next equipment in the chain.
5.3 The
MICtube as a Level Translator
Semi-professional equipment in a home recording system are normally operated
with a nominal level of 10 dBV , while the level used in studios and other
professional application is 0 dBu or +5 dBu. So, when you connect devices with
different levels to each other, you will need to adapt the different levels. Your
MICtube can be used to solve this problem. The Input Gain control allows you
to increase or decrease the input signal level by as much as +45 dB.
MICtube. Before operation, we
MICtube as a Stereo DI box is very
MICtube, then use its balanced output
MICtube
5
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