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Sound System Culture, Built by Hand.

A Kansas City sound system company running hand-built Paraflex rigs. Underground craft. Professional output.

See the Rigs
The Science

Why These Speakers Hit Different.

Most speaker boxes are containers. Their job is to hold a driver and get out of the way. Paraflex cabinets do something different — the cabinet itself is tuned to reinforce specific frequencies through quarter-wavelength resonance. The internal pathways act like a folded acoustic instrument, amplifying low end through physics instead of brute force.

That's why a single 18" Paraflex sub can hit harder and lower than a ported box loaded with two of the same driver. The cabinet does work that other designs hand off to wattage.

The trade-off is complexity. These builds take time. Every cut matters. In the right hands and properly tuned, the physics does work that wattage alone can't buy.

What Is Paraflex? →

Drag to rotate · Scroll to zoom · Paraflex 2×18" subwoofer — cutaway view

The Lineup

Three Rigs. Right-Sized.

From house parties to outdoor festivals — there's a Signalhouse rig sized for the room.

In Build
SH-01

The Kickback Rig

20–75 people

A compact 2x12" sub system built for tailgates, house parties, and intimate gatherings. Small footprint, full Paraflex character.

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Available Now
SH-02

The Community Rig

50–150 people

The workhorse. A 3-way active system with two 2x18" subs, kickbins, and HF — the rig that's been running our gigs since day one.

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In Build
SH-03

The Full Deployment

150–500 people

Four 2x18" subs and a full top end. Outdoor events, larger venues, and the moments that demand serious pressure.

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Free Sound for Free Events

Some Shows Shouldn't Cost a Thing.

We partner with promoters putting on free, community-built events — non-profits, charity fundraisers, and transformational gatherings that align with what we're about.

Learn About the Program