for bassO2 Oxygen Bass Preamp

The O2 Oxygen Bass Preamp is a must have on a bass player pedal board.

With its efficient and sensitive five control knobs it allows you to deliver YOUR tone – whether on stage or in the studio.

The internal “BASS BOOST” switch allows you to squeeze more bass from the O2 while the “MID SHIFT” switch allows instant selection of one of two distinct tones: deep warm and smooth, or hard, fast and responsive. Both modes are delivered dynamically and with great definition.

Every note will be sculpted with the O2 Bass Preamplifier.

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Sound samples
Gain: 3 | Bass: 6 | Mid: 7 | Treble: 8 | Level: 6 | M.Shift: <

Gain: 4 | Bass: 8 | Mid: 5.5 | Treble: 5.5 | Level: 6.5 | M.Shift: >

Gain: 4 | Bass: 8 | Mid: 5.5 | Treble: 4 | Level: 6.5 | M.Shift: >

Gain: 4.5 | Bass: 8 | Mid: 5 | Treble: 6 | Level: 6.5 | M.Shift: >

Gain: 4 | Bass: 6 | Mid: 7.5 | Treble: 3 | Level: 4.5 | M.Shift: <

Samples by Michelangelo Brandimarte

Analog is Better!

  • Two different sounds selected via a toggle switch.
  • Five knobs for your better tone settings.
  • True bypass.

A small tip on the best position of the O2 Oxygen Bass Preamp in your pedalboard.

but do not forget that experience is always the best solution…

  • Selected electronic components.
  • Two different sounds selected via a toggle switch.
  • True bypass.
  • Full analog.
  • Jack input/output 6.3 mm 1/4″ on the sides.
  • Five knobs allow tone (treble, mid, bass), gain and volume adjustment. The LED indicates the effect is on. If the supplied voltage is less than 7.5V the LEDs does not light up.
  • No click /pop at effect activation.
  • Power supply 9 volts DC via battery or external power supply unit. Battery replacement is possible by removing the four screws on the bottom cover.
    For proper operation it is recommended to use batteries with voltage not lower than 7.5 V.
    The external power supply, with regulated power supply is possible via 2.1 mm-plug with negative centre
  • Power consumption 15 mA (max).
  • Dimensions (mm): 72 X 120 X 55
  • Weight (g): 250 (without battery).



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