Maxon SB-300 Master Switch (s/n 136056, Wide Box, Vintage, Rare)

The Maxon SB-300 Master Switch in the wide-box format is a vintage utility pedal from the late 1970s to early 1980s, making it a rare and collectible piece of gear. Designed as a master bypass switcher, it allowed guitarists and bassists to control entire pedal chains or signal paths with a single stomp, a forward-thinking solution well before modern loop switchers became widely available.

This wide-box version offers a slightly different enclosure style compared to the narrow-box variant, while still maintaining Maxon’s rugged build quality. Featuring a sturdy metal chassis, a single heavy-duty footswitch, and durable input/output jacks, the SB-300 was built to withstand stage use and provide simple yet effective routing control.

Today, the wide-box SB-300 is highly sought after by collectors and vintage pedal enthusiasts due to its rarity and its place in Maxon’s early pedal history. Whether used as a practical tool for vintage-inspired rigs or as a collector’s piece, it represents an important chapter in the evolution of effects switching.

The pictures in this listing are of the actual product. Please take a careful look to determine the cosmetic condition and accessories included with the item.
Power supplies are not included, unless described or pictured. All items have been tested and function 100% unless stated otherwise.

Do you have any questions regarding this item? Just ask!

Take a look at our entire catalog HERE for other interesting items.
Combined shipping is possible. Contact us to recalculate shipping on multiple pedals (usually free shipping!).

All items are in stock and shipped quickly after payment! Please provide your email address via message if you wish to receive automatic tracking emails.

We ship worldwide!