The Hartman Envelope Filter was designed around the classic Mutron Envelope filters from the 70’s, it was developed with Hartman Endorsee Mark Karan. The aim was to design a versatile Envelope Filter with all the classic sounds in a user friendly package and of course it had to be analog.
The Hartman Envelope Filter employs select, low-noise components for its signal path and an optically controlled state-variable filter for authentic timbre and response. A second foot switch permits change of filter sweep direction for on-the-fly access to a broad palette of classic filter sounds from funky chirps and saturated quacks to subtler flute-like attacks and horn-tones. An active Mix control blends filtered and unfiltered signal. Factory preset internal trim pots permit additional tuning of filter action.
Envelope controlled state variable filter
Sensitivity, Peak, and Mix controls
Hi-Lo Filter Peak Frequency Switch
Foot-switchable Filter Sweep Direction
Plated-Through-Hole PCB (printed circuit board) construction.
Rugged powder-coated metal enclosure & heavy-duty true-bypass switching
18VDC 2.5mm via Tip-Positive External power jack
5-5/8”wide x 4-5/8”long x 2-1/2”high
All Hartman Pedals are Hand Made in the USA