OB-6
The OB-6 is a 6-voice analog polyphonic synthesizer from Oberheim, built around a SEM-inspired sound engine with a multimode filter and dual digital effects. It has a 49-note semi-weighted keyboard with aftertouch and suits both studio and stage use.
- 6-voice analog polyphonic synthesizer
- 2 VCOs plus sub-oscillator per voice
- 2-pole multimode SEM-style filter
- Polyphonic sequencer, up to 64 steps
- Dual 24-bit/48 kHz digital effects
- 49-note keyboard with aftertouch
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The OB-6 is a six-voice analog polysynth that combines a sound engine inspired by the original Oberheim SEM with modern features. Each voice has two discrete voltage-controlled oscillators plus a sub-oscillator, a 2-pole state-variable filter (low-pass, high-pass, band-pass, notch) and a voltage-controlled amplifier. X-Mod routes the filter envelope or oscillator 2 to oscillator 1 and filter destinations for more unconventional tones.
Playing and programming tools include a polyphonic step sequencer (up to 64 steps, up to 6 notes per step), an arpeggiator, unison mode with chord memory, polyphonic portamento and a knob-per-function panel. A Manual switch makes the panel live. Memory holds 500 factory and 500 user programs. The dual effects section offers reverbs, delays (including bucket-brigade emulation), chorus, flangers, phase shifter and ring modulator, with true bypass for an analog path.
The four-octave semi-weighted keyboard responds to velocity and channel aftertouch. Connections are stereo 1/4" outputs, a headphone output, MIDI In/Out/Thru, USB MIDI, pedal and footswitch inputs, and an internal power supply with an IEC inlet.
Video
Specifikationer
- Märke
- Oberheim
- Modell
- OB-6
- Kategori
- Synthar och keyboards › Synthesizers
Voice path
- Voices
- 6
- Oscillators
- Two discrete VCOs per voice, plus square-wave sub-octave generator (oscillator 1)
- Waveshapes
- Sawtooth and variable-width pulse, plus triangle on oscillator 2
- Filter
- Two-pole resonant filter per voice: low-pass, high-pass, band-pass, notch
- Envelopes
- Four-stage ADSR filter and amplitude envelopes with velocity
- LFO
- One synchronizable LFO, 5 shapes: sine, sawtooth, reverse sawtooth, square, random
- X-Mod sources
- Filter envelope (bi-polar), oscillator 2 (bi-polar)
- Distortion
- Stereo analog distortion
Effects and sequencing
- Digital effects
- Dual, 24-bit, 48 kHz
- Effect types
- Reverb (room, hall, plate, spring), delay (digital and emulated BBD), chorus, flanger, phase shifters, ring modulator
- Bypass
- True bypass keeps fully analog signal path
- Sequencer
- Polyphonic step sequencer, up to 64 steps with rests
- Arpeggiator
- Yes, syncable to master clock
- Master clock
- Synchronizable, with tap tempo
Keyboard and memory
- Keyboard
- 49-note (4-octave) semi-weighted, velocity and aftertouch
- Pitch wheel range
- 1 to 12 semitones up and down, per program
- Transpose
- 8-octave range
- Programs
- 500 factory and 500 user, in 10 banks of 100
- Unison
- 1 to 6 voices, chord memory, key modes
Outputs
- Audio outputs
- Left/mono and right, 2 x 1/4" phone jack
- Headphone output
- Stereo, 1/4" phone jack
Connectivity
- MIDI
- In, Out, Thru (5-pin DIN)
- USB
- Bidirectional MIDI
- Pedal inputs
- Filter cutoff expression, volume expression
- Footswitch inputs
- Sustain, sequencer start/stop
Power
- Power inlet
- IEC AC inlet, internal power supply
- Voltage
- 100–240 V, 50–60 Hz
- Power consumption
- 30 W maximum
Physical
- Dimensions
- 31.8" L x 12.7" W x 4.6" H (80.7 x 32.3 x 11.7 cm)
- Weight
- 20 lbs (9.5 kg)
- Side panels
- Walnut end panels
Software
- Current OS
- Main 1.8.0