The Nurse Funky is an envelope filter pedal from MAS Effects. An envelope filter, often called an auto wah, sweeps a filter automatically in response to your picking dynamics, producing the vowel-like quack associated with funk playing without a foot-operated wah pedal. MAS Effects describes the pedal simply as "Nurse Funky - Envelope Filter, Auto Wah"1.
It is a version of the maker's Nurse Quacky circuit: the listing states, "This is a Nurse Quacky envelope filter (auto wah)"2. The pedal was offered in the shop's one-of-a-kind collection, indicating a single build rather than a standard production run.
The listed price is given in pounds sterling (£147) by the maker, not in US dollars, and tax is included in that figure12. The pedal was out of stock on the maker's page as of 26 October 2026, and its one-of-a-kind listing means it may not return12.
The 1590B enclosure is the small, standard Hammond-style box used by many compact pedals, so the Nurse Funky takes up minimal room on a pedalboard1.
Questions
What is the MAS Effects Nurse Funky?
It is an envelope filter, also called an auto wah, from MAS Effects. The maker describes it as a Nurse Quacky envelope filter, meaning it uses the same circuit as that pedal. Envelope filters move a filter automatically in response to how hard you play, giving the vowel-like, quacking sweep heard on funk records, without needing a foot-operated wah pedal.
Is the Nurse Funky still available?
The maker's product page listed the Nurse Funky as out of stock as of 26 October 2026. It appeared in the shop's one-of-a-kind collection, which suggests it was a single build rather than a regularly produced pedal, so availability depends on whether MAS Effects lists another one.
Sources (2)
- Nurse Funky, MAS Effects
- Nurse Funky, MAS Effects (shop.mas-effects.com)