Dimmers And Switch Packs

Compact dimming and switching hardware from Transcension. The single-channel UP2 PRO and UP2 TRUEDIM are trailing-edge, convection-cooled DMX/HTP dimmer packs with built-in W-DMX wireless receivers, a remote fader and a 10A resistive rating, and both can be configured as switch packs; the TRUEDIM adds parallel-wired TRUE1 TOP and 16A Ceeform outlets. The four-channel Multi Pack gives 5A per channel across eight IEC outlets, with a dummy-load circuit that stops low-power LED fixtures flickering when switched. The PC 08 is a 19-inch rack panel with eight illuminated rocker switches feeding eight IEC outlets for clean on/off control of effects.

The core decision remains dimming versus switching: tungsten loads dim happily on trailing-edge channels, while LED fixtures, smoke machines and effects with electronic power supplies want clean switched mains, so keep dimmed and switched circuits clearly labelled.

Dimmer Pack FAQs

Do LED rigs still need dimmers? For the tungsten and resistive loads that remain, festoon, practicals, heaters, yes: the UP2 packs give a 10A trailing-edge channel with DMX, W-DMX built in and switch-pack modes for non-dim loads.

Trailing edge matters why? It dims modern loads quietly, no buzz, no flicker on the practicals the audience sits next to.