Rock You Treble Booster has the most modern sound, attributable to Queen concerts or, more generally, to the sound of Brian May in the post-Freddie Mercury era. This doesn’t mean Rock You Treble Booster is not suitable for old-style sounds: its character very easy to tame and its intelligible response on all frequencies (velvety low, well present mids and never annoying treble) is the key to obtain every Brian May tone just using the controls of your guitar and get practically all the nuances imaginable with the advantage of a very low noise. Gain: 31db.