Fourm is a compact analog synthesizer that invites you to play, shape, and perform with unprecedented expression. With its legendary Sequential tone, hands-on modulation, and uniquely responsive Tactive™ keybed, Fourm is a creative partner helping to bring your musical ideas to life. Fourm – Analogue Synthesizer Voices: 4 Keys: 37 slim keys with polyphonic aftertouch Modulation: Pro-One-style modulation matrix Filter: Resonant filter from the Prophet line with bass compensation Arpeggiator: Includes sequencer mode Presets: 128 Oscillators & LFOs: All have simultaneously selectable waveforms; Oscillator B supports low-frequency modes Classic Prophet-style synchronization Filter: 4-pole resonant low-pass filter Feedback: Aggressive “drive circuit” Envelopes: Two ADSR envelopes Sequencer: Supports “glide per step” Display: Yes Controllers: Pitch and modulation wheel Security: Anti-theft slot Outputs: Mono line output 6.3 mm jack, mono headphone output 6.3 mm jack Connectivity: MIDI in/out, USB, connector for footswitch/expression pedal Housing: Steel Dimensions (W x D x H): 562 x 251 x 70 mm Weight: 3.97 kg Includes: External power supply