The Studiologic Sledge is a series of virtual analog synthesizers, known for its direct, knob-per-function interface, collaboration with Waldorf for its powerful synth engine (similar to the Blofeld), and a strong focus on hands-on sound shaping. Key features across versions include a 61-key Fatar keybed, three oscillators with wavetable/sample capabilities (especially in v2.0), versatile modulation (LFOs, mod wheel, aftertouch), multi-mode filters, built-in effects (Chorus, Delay, Reverb), and USB MIDI, with later versions (Sledge 2.0/Black) offering 24-voice polyphony, sample import, and layering/splitting. Asking $800 cash