Presonus DigiTUBE User Manual download pdf (Page 4)

1 OVERVIEW

1.2 FEATURES

The following is a summary of your DigiTUBE’s features:

Dual Servo Gain Stage

Your DigiTUBE contains a dual servo gain stage (no capacitors). This design

provides ultra low noise performance and wide dynamic control. The DigiTUBE

can boost the desirable signal without increasing unwanted background noise.

Mic/Instrument/Line Input

The DigiTUBE has a Neutrik™ combo (XLR & ”) connector. The XLR input can

be used for microphone signals and phantom power is available for condenser

mics when the 48V switch is engaged. The XLR will also accept line level signals

when the PAD/LINE switch is engaged. The ” input will accept instrument level

signals, only. The PAD/LINE switch has no effect on the ” input and it should

be understood that the ” input is not designed to accept line level signals.

Pad/Line

A switch on the front panel may be used to engage a -20dB pad for mic level

signals or change the XLR input operating level from mic to line. Using the -

20dB pad provides a more manageable signal from high output devices giving

the operator greater control over the incoming signal and a much reduced

chance of over-driving the input, thereby avoiding distortion.

48V

The DigiTUBE has 48V phantom power available. Phantom power assures

optimum performance from your condenser microphone without the need of

an external power supply. A 80Hz switch is provided on the front panel of the

DigiTUBE that enables the user to insert an 80Hz lter. Often referred to as a

rumble lter, this feature is useful for eliminating bothersome low-end sounds

such as air conditioning noise without greatly altering the desired audio.

Parametric Equalizer

The equalizer section is equipped with three dual concentric potentiometers

The outer control selects the frequency and the inner control boosts/cuts the

selected frequency. The EQ controls are LOW, MID, HI from left to right. The

bandwidths are broad enough and have enough overlap to allow a very effective

contour of the incoming audio signal.

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Presonus DigiTUBE User Manual Page 4