How to Change the Speaker Configuration from Bi‑Amp to Tri‑Amp on the AE and PD Series

Published March 12th, 2026 by Guillermo Gutierrez

Brand: JBL Models: AM7315/64 AM7315/95 PD6322/43 PD6322/64 PD6322/66 PD6322/95 Overview: The AM7315/xx and PD6322/xx loudspeakers are configurable for Bi‑Amp or Tri‑Amp operation.  The steps below describe how to change the crossover mode from Bi‑Amp to Tri‑Amp. Instructions: Remove the six screws securing the input plate and carefully flip it over.

ZonePro Flasher 3

Published March 10th, 2026 by Guillermo Gutierrez

Brand: dbx Models: ZonePro 640/640M ZonePro 641/641M ZonePro 1260/1260M ZonePro 1261/1261M Overview: Installing ZonePro GUI Designer v3.3 automatically installs several utilities, including ZonePRO Flasher 3.This article explains when the flasher is required and how to use it to recover a ZonePro processor. When to use ZonePro Flasher 3 Use ZonePro