M20 Adapter for Speaker-satellite Systems The 21329 M20 adapter from K&M provides simple M20 connector access for use with single rods or extension rods. It's 35mm in diameter and features both M20 male and M20 female thread connectors. Sweetwater audio techs have found the adapter's steel construction to be a reliable addition to nearly any setup.K&M 21329 M20 Speaker Adapter Features: 250mm adapter for speaker-satellite systems 35mm in diameter M20 male and female thread connectors.
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