Skip to content


Westminster Effects Zwingli SDD-3K Preamp / Boost Guitar Effects Pedal


Regular price $149.99

Unit price per 

All who say preamps are invalid err and slander tone. The Zwingli SDD-3K Preamp takes the preamp from a certain popular 80s rackmount delay and swaps the toggle switches for knobs for more flexibility. Use it as an always one to get that certain “Edge” in your tone (Make it meatier, if you will), or set the Zwingli as a solo boost. Also features soft touch relay bypass.

Power requirements: 9V DC center negative, 64mA
Measurements: 4.4″ x 2.3″ x 1″
Close (esc)


Use this popup to embed a mailing list sign up form. Alternatively use it as a simple call to action with a link to a product or a page.

Age verification

By clicking enter you are verifying that you are old enough to consume alcohol.


Added to cart