The ZOIA is basically a modular synthesizer in pedal form. Instead of being a delay effect or a tremolo, the ZOIA provides the modules necessary to build a delay or tremolo from the ground up. But since you're the one building it, you can make it do whatever you want. With the ZOIA you can build your own custom effects, synthesizers, MIDI controllers and virtual pedalboards. And to make life a little easier, Empress created modules for all your standard guitar effects — so if you want a phaser, you can just plop down a phaser. You don't have to break out the textbooks to learn that they're built out of all-pass filters. (Of course, if you're a nerd, you can use the ZOIA to build them out of all-pass filters.) Note: the ZOIA does not come with a power supply. Features 90+ modules and growing, including over 20 pre-built effects OLED screen for easy editing Store up to 64 patches in the onboard memory SD card included for sample storage, patch transfers and firmware updates 1/4" Control Port accepts MIDI, expression pedal, control voltage and external switch inputs 1/8" MIDI I/O ports accept 1/8"-to-MIDI adapters (included) 24-bit, 48kHz converters with 32-bit internal processing Details Create your own effects, synths, control devices and more — oscillators, LFOs, filters, bit crushers and envelope followers are just a handful of the included modules, and they can be connected in almost any way imaginable. 20+ ready-made effects modules — reverbs, delays, choruses, flangers, overdrives and more. Up to 64 patches — create and save patches that can be easily recalled during live performance. Swap and share patches — join the community of ZOIA users on patchstorage.com to try other players' patches or upload your own. SD card included — load and save patches, and install new firmware as Empress continues to add modules and features. OLED display screen — view all module and parameter information at high resolution. Control port and MIDI connectivity — a dedicated control port and 1/8" MIDI in/out let you connect a huge range of external devices to control any of ZOIA's functions and parameters. 1/8"-to-MIDI dongles included. Built-in help — almost like having the manual on board, with quick information about ZOIA's modules and options. High-quality audio — 48kHz sampling, 24-bit conversion, 32-bit internal processing. Low-noise signal path — signal-to-noise ratio of >105dB. Module Categories Interface · Analysis · Audio · Control · Effects — including oscillators, VCAs, filters, delay lines, granular, looper, sampler, sequencers, ADSRs, logic gates, plate/hall/room reverbs, Ghostverb, phaser, chorus, vibrato, flanger, tremolo, envelope filter, ring modulator, cabinet sim, univibe and reverse delay. Specifications Input Impedance: ≥ 1MΩ Output Impedance: 100Ω Frequency Response (-3dB): 10Hz – 23.4kHz Total Harmonic Distortion: 0.22% Dynamic Range: 105.5 dBA Output Headroom: +16.2dBu Power Input Voltage: 9V DC (centre negative), 2.1mm barrel Required Current: 300mA Dimensions: 5.7" L × 3.75" W × 1.75" H (2.625" including controls) Weight: 1.5 lbs UPC: 850040850154