IO-SPKR is IO-Quick Change Coupler head and plate that fits two hole speakers with span of 50mm-100mm. They can be used with IO-W, IO-WSP wall plates, IO-GC or IO-GCM clamps and on Triad stands. Use OA ball joint or IO-LCK as the speaker swivel. T3 stands are highly recommended due to their weight and low center of gravity.

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