Photos shown are of the product on hand

Serial Number: 3844562

Requires a standard modular AEC power supply

The Digitech DHP-55 is becoming increasingly rare these days. Dubbed the "Poor Man's Eventide", this unit is known for it's pitch shifting / harmonizing algorithms designed and built by IVL Technologies.

This rack does much more than just harmonizing. Other effects include: Flanger, chorus, delay, EQ, reverb, multitap delay, sampler, chord shifter, dynamic filter, distortion and speaker emulator, etc. Can be run mono or stereo.

It also uses the same pitch shifting algorithms as the infamous Digitech Whammy pedal, the IPS-33, IPS-33B and DHP-33, but you can have 5 simultaneous harmonized notes with this unit! The tracking is excellent and the shifted notes are clear.

Steve Vai and Billy Corgan have both used this unit in the past.

  • Vintage rackmount multi-effects unit with intelligent 5-voice harmony generation
  • Includes pitch shifting, chorus, flanger, delay, reverb, amp modelling, and distortion
  • Onboard EQ, compressor, dynamic filter, noise gate, and more for full signal shaping
  • Offers mono, stereo, or mono-to-stereo routing for flexible rig integration
  • Preset memory slots, MIDI control, and real-time parameter editing
  • Used by iconic players like Steve Vai and Joe Satriani for expressive, layered tones
  • Ideal for guitarists, producers, and engineers wanting rich digital harmonies with an early '90s sound

---

Southside Guitars
16 Chrome Street
Salisbury QLD 4107
Australia

Promoted similar listings













Listed5 days ago
ConditionGood (Used)
Good condition items function properly but may exhibit some wear and tear.Learn more
Brand
Model
  • DHP-55 Digital Harmonic Processor
Finish
  • Black
Categories
Year
  • 1993
Made In
  • Japan

Product safety information may be available here.

Southside Guitars

Salisbury, Australia
Joined Reverb:2026

Reverb Protection

Simple Returns, Secure Transactions, Human Support

Learn more

Secure Checkout

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Oops, looks like you forgot something. Please check the fields highlighted in red.