35W mixer amplifier with 4 inputs applicable for systems demanding a broad range of features and high energy efficiency. 2 outputs power amplifier zones are provided, 35W (zone 1) and 4W (zone 2). Zone 1 mixer is split between the front-panel and a remote control providing user level controls for the 35W amplifier output. The tone controls adjust the equalization at the zone 1 amplifier output and can be switch selected on the rear panel to also adjust the equalization at the line-level output. The zone 2 mixer on the rear panel provides level trimmers normally set by the installer to provide music-on-hold and/or for background music in a small zone equipped with an 8ohms speaker.