Old Blood Noise Endeavors Expression Ramper HK Expression Control Pedal

The Old Blood Noise Endeavors Expression Ramper HK is an advanced evolution of OBNE’s top-selling utility pedal, designed to transform any expression-enabled effect into a playground of motion and modulation. Clad in a striking new Holey Kids artwork design and upgraded with tap tempo control, the Expression Ramper HK lets you automate expression settings in ways you never thought possible.

Whether you’re creating subtle swells, glitchy random jumps, or hypnotic LFO sequences, the Expression Ramper HK unlocks new dimensions of creativity from your existing pedals.

Main Features

• Expression control pedal with storable A/B settings and tap tempo
• Footswitch-activated motion to create modulated effects instantly
• Ramp between two user-defined expression settings (A and B)
• Six waveform shapes for expression movement:
  • Triangle – linear sweep between A and B
  • Square – instant jumps between A and B
  • 1 Shot – one-time sweep from A to B or B to A
  • Smooth Random – linear sweeps to random spots between A and B
  • Sharp Random – immediate jumps to random spots at each cycle
  • 1 Shot Random – one-time random sweep and stop
• Rate knob or Tap Tempo button for precise speed control
• 50K digital potentiometer compatible with most expression-capable pedals
• Configurable EXP output (TRS, TRS reverse polarity, or TS)
• Status LED indicates current setting
• Compact, pedalboard-friendly enclosure
• Power requirement: 9V DC PSU (centre-negative, 2.1 mm, ~50 mA current draw)

Unlock New Creative Potential

A ramper creates motion between two expression settings. Simply pick Point A and Point B, then choose how Expression Ramper HK moves between them—continuous sweeps, rhythmic modulation, or single one-shot moves. The result? Instant new sounds from your existing pedals.

• Hook it up to a pitch-shifter for Whammy-style octave glides, sequenced pitch jumps, or swelling feedback waves.
• Add it to a phaser for step-filter movement or evolving sweeps.
• Pair it with an expression-enabled delay to jump between two delay times or create swelling feedback loops.

With six motion modes, tap tempo syncing, and a simple one-foot-switch workflow, Expression Ramper HK is a compact powerhouse for modulation and automation.

Specifications

• Type: Expression control pedal with ramping and tap tempo
• Controls: Rate knob, Shape toggle, Tap Tempo footswitch, A/B settings
• Waveforms: Triangle, Square, 1 Shot + three alternative random modes
• Expression Output: TRS, TRS reverse polarity, or TS (user configurable)
• Power: 9V DC PSU (centre-negative, 2.1 mm, ~50 mA current draw)
• Bypass: Relay-based silent switching
• Construction: Compact metal enclosure with Holey Kids graphic design
• Made in the USA