In the photo below, Tonia chisels-out a channel in the cob in order to route speaker wire vertically down the wall. At the bottom, a hole was drilled through this interior cob wall in order for the wire to emerge in another room on the other side where the audio/visual entertainment components will be placed.
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The photo below shows the completed routing ready to be covered-over by a layer of cob. A further discussion on the speaker wire placement will be forthcoming once the walls in the 'large room' reach 11-feet in height where the speaker wires will emerge for each of the four speakers.