Sequential OB-6 6-Voice Polyphonic Analog Desktop Synthesizer Module

BH #SEOB6MODULE • MFR #OB-6 MODULE
Sequential OB-6 6-Voice Polyphonic Analog Desktop Synthesizer Module
Key Features
  • 6 Voices w/ 2 Oscillators per Voice
  • 2-Pole State-Variable Resonant Filter
  • Dual 24-Bit/48 kHz FX Engine
  • X-Mod Modulation Matrix
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The OB-6 Desktop Module 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 to external MIDI clock.
Special Order
Expected availability: 6-10 weeks
On Display in Store
$2,299.00
$192/mo. suggested payments
with 12 Mos. Promo Financing* 

Important Notice

  • This item is noncancelable and nonreturnable.
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Sequential OB-6 Overview

  • 1Description
  • 2Two Legends. One Instrument
  • 3Vintage SEM Tone
  • 4Dual Effects
  • 5X-Mod and Poly Step Sequencing
  • 6Easy to Program

The OB-6 Desktop Module 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 to external MIDI clock.

The desktop module's 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 polysynth 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
UPC: 855346000746

Sequential OB-6 Specs

Oscillators2 x 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
MixerOscillator 1 amount
Oscillator 1 sub-octave amount
Oscillator 2 amount
White noise amount
State-Variable FilterTwo-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 GeneratorsFilter 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
LFO5 x 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-ModSources: 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
AftertouchSource: Channel (mono) aftertouch with bi-polar amount
Destinations: Oscillator 1 frequency, oscillator 2 frequency, LFO amount, amplifier envelope amount, filter envelope amount, filter mode
ClockMaster clock with tap tempo
BPM control and display
MIDI clock sync
ArpeggiatorSelectable 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
SequencerPolyphonic Step Sequencer: 64 steps and rests
EffectsStereo 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
ControlsTranspose: 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 Memory1000 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 & OutputLeft/Mono & Right Audio Outputs: 2 x 1/4" / 6.3 mm phone jack
Headphone Output: Stereo, 1/4" / 6.3 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
Power100/240 volts at 50/60 Hz
Power Consumption: 30 W maximum
IEC AC power inlet for internal power supply
Dimensions (L x W x H)20.8 x 7.8 x 4.4" / 52.0 x 19.8 x 11.2 cm
Weight13.0 lb / 5.9 kg
Packaging Info
Package Weight12.8 lb
Box Dimensions (LxWxH)24.9 x 12.3 x 8.7"
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