Smrčka Effects is a Czech boutique builder run by Jaroslav Smrčka, specializing in custom guitar pedalboards and the analog effects, power, and switching hardware that go on them. Operating out of the Czech Republic, the shop builds to order — designing pedalboard layouts to a player's specifications and handling the wiring, power, and routing in-house.

The pedal lineup is small and focused on classic dirt and modulation circuits, including the Overdrive Station III TB, Overdrive TB 808+, Overdrive TB Double, Driver T613 TB, Fuzztone TB 60's, Analog Chorus TB Double, and a Compressor/Limiter. Alongside the pedals, Smrčka makes 4x10V and 8x10V isolated power supplies, true-bypass loop strips in 3, 5, and 7-loop configurations, A/B and A-Y-B switching boxes, patchbay boxes, and custom guitar cabling.

The brand's reputation is rooted in the pedalboard-integration side of the business rather than mass production — players commission a board and Smrčka assembles, wires, and powers it, often pairing third-party pedals with the shop's own switching and utility units.

Smrčka has 3 products cataloged on Equipboard, including Multi Effects Pedals, Compressor Effects Pedals, and Chorus Effects Pedals.