Sunday, 30 May 2010

Another Sound Distraction

So here's one reason I haven't posted much about my own models in the past few weeks. As you may have seen from the "About Me" section I am involved with the sound system at my church, and over the last couple of years we've seen some welcome improvements and upgrades. As a result there was some surplus kit, so it struck me that it might be possible to put together a basic PA system for a side-hall and for occasional "portable" use. OK, I didn't have everything needed - a couple of bits came from e-bay, like the flight-case rack. I guess that covers the portable bit!

Another e-bay bargain was a "Zone Mixer", an odd choice perhaps but it has the minimum of knobs and buttons. The settings are mostly internal, so just 6 knobs for 6 inputs plus a volume - perfect for use by anybody! A surplus CD/DVD player (and previously from a charity shop) is the main source of sound, a colleague at work helped me turn some offcuts of aluminium into brackets to attach it into the rack.

The rest of the space at the front was filled with a grille, and a panel of sockets: 3 microphone inputs, 2 stereo inputs for external sources (the final one being the DVD player), and outputs for video, left and right channel sound. The job of wiring up was quite familiar to me, not unlike model railway wiring! The system will be plugged into sockets on the wall running to speakers, although portable speakers can also be used, hence the jack sockets.

Inside the back cover of the case I attached a 4-way extension lead and ran the lead out through a hole, making plugging in straightforward. The amplifier is also in the rear of the rack, which not only leaves space for the panel of sockets at the front, but keeps the amp knobs out the way. Only the front cover needs removing for operation.

Well it works OK in my lounge, but we've yet to install the speakers in the intended room to try it out for real. And please be assured I'll try and return to topic for my next post ...!
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