This is obviously one of the "second generation" of lighting control units. It is unique in that a series of effects cartridges can be inserted into the control panel which significantly alters its function thus making the "Lightmaster" amongst the most versatile on the market.

The control panel is designed with functional logic, to the left are the 6 channel faders, blackout switches, monitor neons, push button fuses, together with a master fader completing the manual section. The master fader will fade any pre-set channel mix in 'sinc'.

On the right of the panel are two main switches and fuses for the two separate mains inputs, the cartridge input, and the module master control. The two mains inputs effectively share the 25 amp load between two 13 amp circuits, but are not for 2-phase operation. Into the cartridge input plug 8 completely different types of effect cartridges; (1) Sound to Light, (2) Random Flash, (3) Flowlight, (4) Chaser, (5) Flash and Fade, (6) Slowlight, (7) Independant, (8) Ripplesound. All of which are available to operate either 4 or 6 channels. All the sound influenced effects can be operated from a line input as low as 15 m.v. through to a 150w speaker output at 4 ohm, the audio connection is protected, so no worries there.

I particularly like the fact that once a level is set on the module, slight variations in output level from the sound source seem to have little or no effect on its function.

Audio equipment in the immediate area of the unit will not be subjected to the customary clunks and clicks which are often associated with electronic switching devices — the problem of switching 6 KV of lighting is eliminated by the use of six giant noise suppression units keeping the unit well within the stringent E.E.C. standards.

Yet another useful function is that the 2 control systems, manual and module can be combined so that the unit responds to the highest input from either section.

It is uncommon to find a piece of "state of the art" electronics which is totally functional and does not bow to "futuristic gimmicking" the Lightmaster is, however, an example — even the seemingly "toy-like" cartridge system is more than valid (a multi-functions switch with the p.c. cards enclosed within the unit would seem more obvious) it would enable a ballroom manager to exercise his own discretion over the type of lighting programme used - with the other seven cartridges locked firmly in his desk, no-one is likely to interfere.

The only thing I find really disappointing is that the unit is not available with the control panel separate, connected to the power units by a multiway cable. This would make this unit ideal for off-stage lighting control techniques and render it more useful to travelling bands anxious to improve the quality of their live gigs.

Retail Price £189.00