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the stack. Speaker plans, builders, used gear and rig rentals for Europe’s sound systems.

60+ speaker plans with a woofer search engine, builders in 30+ countries and a community of 15 000+ sound system people. Free to use.

Everything between the plan and the party.

Start from a proven design, find someone to build it, buy or sell the boxes, and rent them out when you’re not playing.

A 3D archive of speaker plans with a woofer search engine. Find schemes and T&S parameters in seconds, the starting point for any build.

Connect artisan speaker builders with buyers. Professional workshop or passionate craftsman, join and grow your business.

Buy and sell used sound systems in a marketplace built by and for the sound community. The easiest way to upgrade or get started.

Earn money renting out your sound system, or find gear near you for your next event.

Speakers designed and made in Italy, built from titanium, aluminium, neodymium, birch plywood and carbon steel for high output at high pressure.

Professional high-efficiency horn-loaded sound systems, engineered for large events and outdoor festivals.

Web radio for sound system lovers: exclusive mixes, live sets and underground sounds, around the clock.

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Rent it out for the next party, sell it on the marketplace, or join as a builder and take orders from across Europe.

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