The Carl Martin Ottawa is an analog envelope filter pedal designed for both guitar and bass, delivering a range of funky and vocal-like wah tones. It features a 3-way switch for high, band, and low pass filters, a Q knob for effect prominence, an attack control for effect growth, and a tone control to shape the high frequencies. Its compact design with top-mounted jacks makes it pedalboard-friendly, offering a wide array of sounds and easy integration into a rig. Guitarists who are looking for a dynamic filter will find this useful.
Guitarists praised the Carl Martin Ottawa for its versatile and inspiring sound, with many noting its high-quality build and ability to deliver a range of funky filter effects. Users found the pedal easy to integrate into their pedalboards and appreciated the analog filter's unique character compared to digital alternatives. The flexibility of the controls, including the filter options, was also a major plus for reviewers, making it suitable for various musical styles.