ISE 2022: Procella Audio Debuts P880 Bi-Amplified Loudspeaker May 16, 2022 | Home / May 16, 2022 rave-video / ISE 2022: Procella Audio Debuts P880 Bi-Amplified Loudspeaker ISE 2022: Procella Audio Debuts P880 Bi-Amplified Loudspeaker