deBont Vidur Owner's Manual - Page 2

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Front

The single jack input will accept any 6.35mm (1/4") jack plug.

The Vidur is designed to be a clean sounding preamp. It is unlikely the input will run out of

headroom. However, other audible, (perhaps preferred) sound colorations might occur when

presenting the input with larger signal levels, like slight compression. By setting the pad

control knob to any other value than 0dB , the signal level presented to the first stage of the

preamp can be reduced to taste. This affects all

outputs (tuner, fx loop, line out, main outputs).

● 0dB

= full signal is amplified

● -3dB

= 1/2 the perceived loudness

● -6dB

= 1/2 of the original signal level

● -12dB = 1/4 of the original signal level

The Vidur comes with an optional passive filter network in the first stage of the preamp, also

known as the ' selectable sound signature' . This gives you even more tonal possibilities to

play with. Depending on taste, setting, or the bass being used, the filter can be enabled or

disabled on the fly (see below).

Note: As this is a passive filter, enabling it will decrease the perceived audio volume slightly.

Note: The 'selectable sound signature' is completely independent of the EQ state or setting.

The mute button on the Vidur has two functions:

1. Pressing and releasing the mute button will toggle a true bypass, muting/ unmuting

the signal. The tuner output (back) will always remain active. All other outputs will be

silenced. This button is also available on the optional footswitch.

● red:

● green: preamp unmuted

2. Pressing and holding the mute button for two seconds will activate the sound

signature selection. The EQ LED will start to blink with the current state of the

selectable sound signature. Pressing the EQ button while still holding the mute

button toggles between the two sound signatures. Release the mute button to set the

preferred sound signature. The EQ LED will blink as follows:

● red blinking:

● green blinking: filter enabled

preamp muted

filter disabled

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