As of August 2026, Stacked Overdrive is retired.

Radial Engineering EXTC-SA · Stacked Overdrive

Stacked Overdrive

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Radial Engineering→EXTC-SA

EXTC-SA

[ owner photo · Radial Engineering EXTC-SA ]

A stand-alone audio interface that routes guitar effects pedals into a pro-audio recording chain.www.radialeng.com/product/extc-sa ↗

[ owner photo · Radial Engineering EXTC-SA ]

A stand-alone audio interface that routes guitar effects pedals into a pro-audio recording chain.www.radialeng.com/product/extc-sa ↗

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