Amazon.com: Trumpet Trim Kit for improving the sound. For all Bach Stradivarius Trumpet. Custom made KGUBrass (MEDIUM, Silver Plated) : Musical Instruments
Review Video: Bach Commercial Trumpet model LT190L1B by Kurt Thompson - YouTube
Vincent Bach tromba sib LT180S-37 ML Stradivarius Argentata - Raffaele Inghilterra