Electro-Harmonix Nano Doctor Q - Envelope Follower

Controls

• Range
  Controls the frequency range in which the filter moves.
• Bass Switch
  Lets low sounds through when it is down, and is especially useful when playing bass guitar or bottom string notes on lead guitar.

Information

Video

• (2009-02-22) Electro-Harmonix Doctor Q Envelope Filter (EHX Pedal Demo by Dave Weiner) by Electro-Harmonix
• (2010-02-07) Electro-Harmonix - Doctor Q - Demo by Dave Weiner - Envelope Filter by JRR Pedals
• (2012-04-09) [????] 60? Todays Gear Electro-Harmonix Nano DR.Q by Today's Gear
• (2012-04-16) EHX Doctor Q Nano in 100 Seconds by docSanchezFX
• (2012-08-09) Electro Harmonix Nano Doctor Q Envelope Filter Guitar Effects Pedal by Gear4music
• (2013-01-06) Electro Harmonix Dr. Q Demo by mrtolex
• (2015-01-01) Electro Harmonix Doctor Q Review & Demo by mickeysmusicalreview
• (2017-11-08) A Quick Look: Electro Harmonix Doctor Q Nano on Bass by Burning Hand Sounds
• (2023-05-10) No need for a Wah pedal now? Electro-Harmonix Doctor Q by Budget Pedal Chap

Reviews

Documentation

• manual (Electro-Harmonix)
• manual (PDF, Electro-Harmonix)

Links

• Electro-Harmonix
• Electro-Harmonix Doctor Q - Envelope Filter
• EH Man's Electro-Harmonix Extravaganza!

Related

• Electro-Harmonix Doctor Q Envelope Follower
  • Electro-Harmonix Nano Doctor Q - Envelope Follower (Nano series)
  • Giannini BEF1 Envelope Follower
  • Ishibashi Triangle Env (Japanese copy?)
  • Jack Orman's Dr. Quack (DIY project based on the Doctor Q)
    • Electra 871 Envelope (made by EH)
    • Home-Wrecker's Nurse Quacky (DIY project based on the Dr. Quack)