Reviews
Yakiv Cvetinckii. KGU mouthpieces booster.
Arturo Sandoval. KGU Classic mouthpieces booster.
Sergei Nakariakov. Concert and MK at Kiev. Gold 24K KGUbrass Cone Booster.
Yakiv Tsvietinskyi. Test of KGUBrass XXL Extra Heavy Trim Kit.
Orest Filipov has tested New Saxophone Heavy Neck Screws from KGUbrass.
Yakiv Tsvietinskyi about KGUbrass booster.
Alex German. "My impressions"