The Shallow Water is a modern classic — it defined what lo-fi modulation could be before half the current tape-emulation pedals on the market existed. At its core it's a BBD-based k-field modulator: a random, non-cyclical vibrato/chorus that doesn't move in waves or follow a pattern. Instead it wanders, stutters, and drifts, the way old tape does when it's been left in a hot car.

The modulation starts in a microcontroller generating random voltage steps at random intervals. Rate sets how often those shifts happen. Damp controls how fast they arrive — from sudden pitch jerks at the minimum to slow, barely-perceptible drift at the maximum. Depth sets how far. The three interact heavily; subtle settings are where it lives best.

The LPG knob feeds an envelope follower into a low-pass gate at the output, so the pedal responds to your playing dynamics — dig in and it opens up, play softly and it darkens and chokes slightly. That's the detail that makes it feel alive rather than just weird.

Works on guitar, synth, keys, or anything that benefits from sounding like it was recorded on something that no longer exists.

FEATURES:

• BBD analog modulation circuit with pseudorandom modulation
• Non-cyclical vibrato/chorus — no repeating LFO pattern
• Envelope follower into low-pass gate (LPG) responds to playing dynamics
• Internal boost/pad jumpers for impedance and level matching
• Isolated power supply strongly recommended (sensitive to power noise)

SPECS:

• Switching: True Bypass
• Power: 9V DC only (center negative) — strictly 9V, no exceptions
• Current draw: 40mA max
• Input impedance: 1MΩ
• Output impedance: 2kΩ
• Dimensions: 11.9 × 9.7 cm

CONTROLS:

• Rate: frequency of random pitch fluctuations (rare to nervous)
• Damp: slope of modulation — abrupt jerks to slow drift
• Depth: intensity of pitch modulation
• LPG: envelope follower sensitivity into the low-pass gate
• Mix: wet/dry blend
• Volume: output level