DIY speaker terminals

I needed some terminals to connect up my new Buddy subs.

I looked at pre-made blocks and although they might be fine powering an extension speaker for Grandpa's transistor radio, it might be asking a bit much to expect them to drive a 180 watt subwoofer.

I had some spare binding posts laying around and some perspex, so I decided to make my own.

Binding posts were mounted on a perspex plate. Epoxy resin stops them from turning and ensures an airtight seal

An MDF spacer made up to give the depth required to allow the speaker to lay on its back without damage to the terminals even if they are fully wound out. A router with a flush-trim bit is used to clean up the opening in the box, and a rollover bit gives a flare as per port openings.

The perspex plate is mounted from the inside with 6 screws and some silicone sealant

The finished result. 100mm hole with flared edge gives plenty of clearance for fat fingers.

Connection will be via spade connectors. The extra terminal is a loop connector to help with wiring the two buddies in series.

Postscript: The plastic binding posts turned out to be unable to handle being done up tightly. I will be looking to replace with all-metal binding post or Neutrik connectors

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