Electro Harmonix Nano Q-Tron Envelope Filter Mixers this is the one that

this is the one that started it all

(It’s a dead-on reissue Marshall® did with crazy cool custom-made–vintage-recreation speakers and dual transformers to transfer the load of the 4 EL-84s

powerful response

even vocals

to all-out roaring leads

Electro Harmonix Nano Q-Tron Envelope Filter Mixers this is the one thatA Compact Version of the Classic Envelope Filter Envelope controlled filter is an effect type that ventures beyond the mainstream yet is equally at home in a wide range of genres and equally effective on guitar, bass, keys, horns and more. Electro Harmonix is a pioneer in this effect category and has been making envelope controlled filter pedals since the 1970s! The Nano Q Tron springboards off that deep heritage. Heres how it works: The Nano Q Tron