Here's a quick demo of the Abby ABY! It's an active A/B/Y switcher with a dedicated buffer for both channels. It has high input impedance (1.1MΩ) with no loading problems, high end loss, or overall tone loss. Output B has a phase inverter, making it possible to use any pair of amps together without phase cancelation problems. Hand built in France.

More info here: https://www.signalcheyne.com/product-...

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