Virgo DiBiQuadro User Manual

Version 1.0

Thanks for purchasing DiBiQuadro Virgo. Please take your time to read carefully the content of this manual
before using the plugin.

Overview

Virgo is a library for Nebula 4 / Nebula 4 Player based on what has truly established itself as the “industry
standard” for combo/self-contained all-tube guitar amplifiers. The sampled model is a '65 reissue of the version
often referred to as “Blackface”, used on thousands of recordings and countless live performances, proven to
be incredibly versatile not only for guitar but also bass, keyboards, vocals, accordion, electric violin and many
other electrified instruments.

The main core of Virgo has been sampled with top class cables/gear to obtain the greatest path possible.
Additionally, two pristine reverbs - a Room (default) and a Rich Plate - have been taken from a highly acclaimed
digital hardware reverb unit; then, two different flavors of vintage tremolo – mono and stereo – have been added
to satisfy your need for surf music and significantly multiply the sound possibilities; finally, a built-in limiter
completes the chain.

Three output modes are available. The power amp provides pristine clarity, great dynamics and a larger than life
frequency response: this option sounds great by itself; however, if you want to use your own IRs, this is the
starting point. The 57 and 201 options give you two great dynamic microphones, masterfully placed in front of
the open-back cabinet to get the fullest tone possible. The sweet spot has been determined by injecting pink
noise in the amp and by minimizing phase cancellations on the best sounding speaker of the combo.

Like in every our product, each band and preamp has been sampled without any converter / “calibration bias”
phase distortion. This allows to overlap the effect of more bands without adding unwanted coloration, reaching
a new level of match with hardware for unparalleled results, even compared to hardware itself. This
methodology is named SP Tech.

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