Nord Lead 4R Synthesizer Module at a Glance:Loaded with four innovative synthesizer voices Full of fun filters and freaky effects Programmable Variation buttons let you instantly warp your soundVirtual analog 4-part multi-timbral synthesizer with up to two oscillators per voice Create wild modern sounds with subtractive, FM, and wavetable synthesis, including Nord's Formant Wavetables True Voice Unison lets you achieve the sound of up to four oscillators per voice 20-voice polyphony lets you stack up the sound Filter designs include 12dB and 24dB lowpass modes, highpass mode, and bandpass mode, as well as transistor and diode-ladder filter simulations Dual LFO and arpeggiator sections top the list of cool modulation and manipulation tools Each voice comes with its own effects section that includes delay, reverb, bit crushing, a Talk effect, and more Morph and Variation controls make it easy to twist your sound in real-time USB MIDI and separate outputs per voice provides flawless studio integrationLoaded with four innovative synthesizer voices Nord positively packed their Lead 4R synthesizer module with a synth-geek's playground of sound-creation tools, and it all starts off with the sound engines. Onboard, you'll find a multi-timbral platform sporting a 2-oscillator virtual subtractive analog synth that features 2x oversampling for incredibly smooth sounds. There's also a wavetable mode that showcases Nord's groundbreaking Formant Wavetable. And when you add to that the Lead 4r's FM synthesis, Hard/Soft sync options, and True Voice Unison (which can give you up to four oscillators per voice), you're ready to create anything from beefy leads and luscious pads to organic sounds you've never even dreamed of. Full of fun filters and freaky effects Nord absolutely loaded the Lead 4R with fun and creative tone-shaping options. First off, you've got a super-flexible filter section that lets you choose from 12dB and 24dB lowpass modes, highpass mode, and bandpass mode, as well as two awesome simulations of transistor and diode ladder filter, hooking you up with all of the gritty, dirty, beautifully flawed sound of classic analog technology. There's even dedicated filter overdrive you can use to rough up your sound before the effects section. Speaking of which, all four voices have their own dedicated effects sections, with delay, reverb, bit crushing, and even a freakishly cool Talk effect. Programmable Variation buttons let you instantly warp your sound If you've ever wanted to totally tweak your sounds on the fly, but didn't have enough fingers to do the trick, then you're going to have a blast with the Nord Lead 4R's Variation buttons. These buttons let you instantly override nearly any and every parameter on the Lead 4 at once. For instance, you can set up a Variation button to push your LFO speed, crank the modulation setting, and kick up the filter saturation all at once - a perfect recipe for a wicked dubstep drop. Or your can bounce from one Formant wave to another while spiking the bandpass filter and adding delay to create a killer Goa effect. With seven assignable variations per program and clock synchronization, the possibilities are simply endless.