The Guarneri (often referred to in the Latinized form Guarnerius) is the family name of a group of distinguished luthiers from Cremona in Italy in the 17th and 18th centuries, whose standing is considered comparable to those of the Amati and Stradivari families. Some of the world's most famous violinists, such as Niccolò Paganini, Jascha Heifetz, Yehudi Menuhin have preferred Guarneris to Stradivaris. The average Stradivari is stronger in the 200 Hz and 250 Hz bands and above 1.6 kHz. Del Gesùs are on average stronger from 315 Hz up to 1.25 kHz. These differences are perceived as a more brilliant sound and stronger fundamentals of the lowest notes of the Stradivari, versus a darker sound in the del Gesùs.