Dreadbox Lethargy

LETHARGY
8-Stage Analog Phase Shifter

The River Lethe flowed through the underworld, erasing memories with every sip. To drink from it was to drift into a dreamlike oblivion, free from the weight of the past.

Dreadbox LETHARGY – Analog Phase Shifter
An OTA-based phase shifter designed for fretted instruments and synthesizers, with Eurorack compatibility for modular setups. The Dreadbox Lethargy pedal washes over your sound, immersing you in lush, hypnotic waves of analog phase shifting. Lethargy pulls you into a world where only music remains.

Features:

• Full analog 8-stage OTA phase shifter for warm, organic modulation
  
• Two LFO waveforms (Triangle & Square)
  
• Wide LFO range (from ultra-slow sweeps to 110Hz for fast modulation)
  
• Vibrato-friendly for rich, expressive tones
  
• 3 patch points for seamless modular integration

Controls:

1. AMOUNT - Adjusts the balance between the internal LFO modulation and the Manual control. At maximum levels, the LFO completely overrides the Manual knob.
2. FEEDBACK - Set the amount of feedback. No Feedback gives a smooth vibe effect. Also at hot input signals, too much feedback may cause unwanted distortion.
3. MANUAL - Sets the static, initial phase shift degree. It behaves similarly to the cutoff frequency knob on a low-pass synthesizer filter.
4. RATE - Sets the speed of the LFO sweep. The range goes from ultra-slow cycles (taking several seconds) all the way up to 110Hz for metallic, ring-mod-style FM effects.
5. WAVE Toggle - Selects between the two available LFO shapes

• Triangle: For smooth, classic, sweeping phase transitions.
  
• Square: For stepped, rhythmic, and hard-edged modulation textures (can introduce rhythmic clicking due to sharp wave edges).

Specifications:

• Circuit: Analog
  
• Bypass: Buffered CMOS
  
• Audio: Mono
  
• IN/OUT: TS Unbalanced 6.4mm jack
  
• CV Connections: 3 x 3.5mm mini jacks (Manual In, Rate In, LFO Out)
  
• Power Supply:
9VDC / Center pin negative 2.1mm (NOT INCLUDED)
  
• Dimensions: (cm)
14 x 10 x 5.6
  
• Current Draw:
90mA