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Sequential OB-6 6-Voice Polyphonic Analog Synthesizer
EAN: 855346000753
The OB-6 from Dave Smith Instruments is a modern, all-analog 6-voice polyphonic synthesizer that pays tribute to Tom Oberheim s SEM 4-voice and 8-voice synthesizers, but with several enhancements. The synth features true voltage-controlled oscillators, a classic Oberheim-inspired 2-pole, state-variable resonant filter, amplifiers, envelopes, and an LFO. Additional enhancements include studio-quality effects, a polyphonic step-sequencer, and an arpeggiator all of which can be synchronized internally or via external MIDI clock.
The four-octave, semi-weighted keyboard offers velocity sensitivity and channel aftertouch, while the control panel offers knob-per-function control with no menu diving. There are 500 permanent factory programs and 500 user programs which are organized into 10 banks of 100 presets. The OB-6 offers an ideal combination of portability and power for the project studio or the gigging musician.
Two Legends. One Instrument
Vintage SEM Tone
Dual Effects
X-Mod and Poly Step Sequencing
Easy to Program
Easy to Play
EAN: 855346000753
The OB-6 from Dave Smith Instruments is a modern, all-analog 6-voice polyphonic synthesizer that pays tribute to Tom Oberheim s SEM 4-voice and 8-voice synthesizers, but with several enhancements. The synth features true voltage-controlled oscillators, a classic Oberheim-inspired 2-pole, state-variable resonant filter, amplifiers, envelopes, and an LFO. Additional enhancements include studio-quality effects, a polyphonic step-sequencer, and an arpeggiator all of which can be synchronized internally or via external MIDI clock.
The four-octave, semi-weighted keyboard offers velocity sensitivity and channel aftertouch, while the control panel offers knob-per-function control with no menu diving. There are 500 permanent factory programs and 500 user programs which are organized into 10 banks of 100 presets. The OB-6 offers an ideal combination of portability and power for the project studio or the gigging musician.
Two Legends. One Instrument
- The OB-6 is a collaboration between Dave Smith and Tom Oberheim, two of the most influential designers in poly synth history. The OB-6 takes the classic bold Tom Oberheim sound, with its true voltage-controlled oscillators, 2-pole filter, and amplifiers, and adds modern enhancements such as studio-quality effects, a polyphonic step sequencer, an arpeggiator, and more
Vintage SEM Tone
- Sound engine inspired by Tom Oberheim s original SEM synthesizers
- Two discrete voltage-controlled oscillators (plus sub-oscillator) per voice
- Continuously Variable Waveshapes: Sawtooth and variable-width pulse, plus a triangle wave on oscillator 2
- Classic Oberheim-inspired 2-pole, state-variable, resonant filter with low-pass, high-pass, band-pass, and notch functionality
- VCA: Voltage-controlled amplifiers
Dual Effects
- Dual Effect Engine: 24-bit/48 kHz resolution
- Studio-quality reverbs, delays (standard and BBD), chorus, and phase shifter
- True bypass maintains a full analog signal path
- Independent stereo 100% analog distortion effect
X-Mod and Poly Step Sequencing
- Modulation Sources: Filter envelope and oscillator 2 (both with bi-polar control)
- Destinations: Oscillator 1 frequency, oscillator 1 shape, oscillator 1 pulse width, filter cutoff, and filter mode
- Unison Mode: Configurable voice count (1-6 voices) and key modes
- Polyphonic Step Sequencer: 64 steps with up to 6 notes per step with rests. Syncs to an external MIDI clock
- Arpeggiator: Syncs to external MIDI clock
Easy to Program
- Knob-per-function front panel offers instant access to virtually all OB-6 functions
- 1000 Presets: 500 permanent factory programs and 500 user programs organized into 10 banks of 100 programs
- Live Panel Mode: Switches from a preset to current knob and switch settings
Easy to Play
- Four-octave, semi-weighted keyboard with velocity and channel aftertouch
- Programmable Backlit Pitch Wheel: 1 to 12 semitones
- Backlit modulation wheel
Sequential OB-6 Keyboard Specs
| Oscillators | 2x discrete VCOs per voice Wave Shape per Oscillator (Continuously Variable): Sawtooth and variable-width pulse, plus triangle on oscillator 2 Pulse width per oscillator Hard Sync: Oscillator 1 syncs to oscillator 2 Square Sub-Octave Generator: Oscillator 1 per voice Low-Frequency Mode: Oscillator 2 Keyboard Tracking: On/off (oscillator 2) Oscillator Detune: For increased tuning instability, from subtle to extreme |
| Mixer | Oscillator 1 amount Oscillator 1 sub-octave amount Oscillator 2 amount White noise amount |
| State-Variable Filter | Two-pole, resonant, filter per voice with low-pass, high-pass, band-pass, and notch functionality inspired by the original Oberheim SEM filter Bi-polar filter envelope amount Velocity modulation of envelope amount Keyboard tracking: off, half, full |
| Envelope Generators | Filter Envelope: Four-stage (ADSR) envelope generator with velocity modulation of envelope amount Amplifier Envelope: Four-stage (ADSR) envelope generator with velocity modulation of envelope amount |
| LFO | 5x Wave Shapes: Sine, sawtooth, reverse sawtooth, square, and random (sample and hold) Clock sync (internal or external MIDI clock) Initial amount Mod Destinations: Oscillator 1 frequency, oscillator 2 frequency, oscillator 1 and 2 pulse width, filter cutoff, filter mode, amp |
| X-Mod | Sources: Filter envelope (bi-polar) and oscillator 2 (bi-polar) Destinations: Oscillator 1 frequency, oscillator 1 shape, oscillator 1 pulse width, filter cutoff, filter mode, normal to bandpass filter |
| Aftertouch | Source: Channel (mono) aftertouch with bi-polar amount Destinations: Oscillator 1 frequency, oscillator 2 frequency, LFO amount, amplifier envelope amount, filter envelope amount, filter mode |
| Clock | Master clock with tap tempo BPM control and display MIDI clock sync |
| Arpeggiator | Selectable Note Value: 16th note, 8th note triplet, 8th note, dotted 8th note, quarter note 1, 2, or 3 octave range Up, down, up/down, random, and assign modes |
| Sequencer | Polyphonic Step Sequencer: 64 steps and rests |
| Effects | Stereo analog distortion Dual, 24-bit, 48 kHz Digital Effects: Reverb (room, hall, plate, spring), delay (full bandwidth digital delay and emulated bucket brigade and tape delays), chorus, and phase shifter Delay sync True Bypass: Maintains fully analog signal path when digital effects are off |
| Controls | Keyboard: Full-sized, semi-weighted, 4-octave with velocity and aftertouch Pich Wheel: Backlit, spring-loaded with selectable range per program (1 to 12 semitones up and down) Mod Wheel: Backlit Transpose: 8-octave range Hold Switch: latches held notes on Polyphonic Glide: Portamento Unison (Monophonic) Mode: Configurable voice count, from one to all six voices, chord memory, and key modes Manual switch: when on, the front panel is live; what you see is what you hear |
| Patch Memory | 1000 Programs: 500 user / 500 factory programs in 10 banks of 100 programs each Direct program access, including single-button access to the current set of 10 programs |
| Input & Output | Left/Mono & Right Audio Outputs: 2 x 1/4" / 6.35 mm phone jack Headphone Output: Stereo, 1/4" / 6.35 mm phone jack MIDI: In, out, and thru ports USB: Bi-directional MIDI communication Filter cutoff expression-pedal input Volume expression-pedal input Sustain footswitch input Sequencer start/stop footswitch input |
| Power | 100/240 volts at 50/60 Hz Power Consumption: 30 W maximum IEC AC power inlet for internal power supply |
| Dimensions | 32.0 x 12.7 x 4.6" / 81.3 x 32.3 x 11.7 cm |
| Weight | 20.0 lb / 9.1 kg |
In the Box
- Sequential OB-6 6-Voice Polyphonic Analog Synthesizer
- IEC Power Cord
- 2 Years Manufacturer Warranty
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