er.need some help..im confused...please ignore my name,its notmine.

ok, er, i saw this guy (THE BASS GOD- Quentin Berry) playina spector professional, and he well, ROCKED. he had a effect ive never heard before. I sound dumb now, but it was like a guitar wail. he hit the high notes and it held a note for like aaages. a very electric sound. i dunno what im on about, but please help me, i get a chance tobuyone toms, i need to know howmuch itll cost me,as wellas what it actually is

edit: my sinature istrue,but i want this effect for fun!