Made some speakers out of some gas pipe and exciters. : r/diysound
Exciter | HiFi Sono DIY | Audiophonics - Audiophonics
Monacor EX-40/8 Exciter speaker 40 W 8 Ω Metal, Black 1 pc(s) | Conrad.com
High Power 100w Bass Exciter Speaker 4ohm Sound Transducer For Furniture - Buy Sound Transducer,4ohm Speaker,Exciter Speaker Product on Alibaba.com
Amazon.com: Dayton Audio DAEX32EP-4 Thruster 32mm Sound Exciter - 40 Watts RMS 4 Ohm Imepedance - Audio Transducer - Turn Any Surface into a Speaker System - for Large and Rigid Surfaces : Electronics
Visaton EX 60 S Exciter speaker 4 Ω 1 pc(s) | Conrad.com
Sinuslive Bass-Pump III Exciter-kaiutin 130 mm 80 W 4 Ω | CDON