Dave Smith Instruments OB-6 6-Voice Polyphonic Analog SynthesizerSKU: DDSI2700X-P
In Stock & Ready To Ship!
- Images 6
- Video 2
In Stock & Ready To Ship!
Select to Compare
The OB-6 is a once-in-a-lifetime collaboration between the two most influential designers in poly synth history, Dave Smith and Tom Oberheim. 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. No other modern analog poly synth can boast such a pedigree or such a massive, in-your-face sonic signature.
Vintage SEM Tone
The OB-6 sound engine is inspired by Tom’s original SEM, the core of his acclaimed 4-voice and 8- voice synthesizers. It features two discrete voltage-controlled oscillators (plus sub-oscillator) per voice with continuously variable waveshapes (sawtooth and variable-width pulse, plus a triangle wave on oscillator 2). The classic Oberheim-inspired 2-pole, state-variable, resonant filter provides low-pass, high-pass, band-pass, and notch functionality. Voltage-controlled amplifiers complete the all-analog signal path.
The dual effects section provides studio-quality reverbs, delays (standard and BBD), chorus, flangers, and faithful recreations of Tom’s original phase shifter and ring modulator. While the effects themselves are digital, with 24-bit, 48 kHz resolution, a true bypass maintains a full analog signal path.
X-Mod and Poly Step Sequencing
Also present is X-Mod, which expands the tonal palette and makes it easy to create dramatic and unconventional sounds. Modulation sources are filter envelope and oscillator 2, both with bi-polar control. Destinations include oscillator 1 frequency, oscillator 1 shape, oscillator 1 pulse width, filter cutoff, and filter mode. The polyphonic step sequencer allows up to 64 steps and up to 6 notes per step.
You can create sequences polyphonically, with rests, and sync to an external MIDI clock. The full-featured arpeggiator can be synced to external MIDI clock as well. Unison mode features configurable voice count (1-6 voices), chord memory, and key modes.
Easy to Program
The knob-per-function front panel puts virtually all OB-6 functions at your fingertips. Included are 500 permanent factory programs and 500 rewritable user programs. Turning on the Manual button enables live panel mode, in which the sound of the OB-6 switches to its current front panel settings. In this state, what you see is what you hear.
Easy to Play
This analog powerhouse is packed into a four-octave, semi-weighted keyboard with velocity and channel aftertouch, making it perfect for stage or studio.
- Full-sized, semi-weighted, 4-octave keyboard with velocity and aftertouch
- Two discrete VCOs per voice
- Continuously variable wave shape (sawtooth and variable-width pulse, plus triangle on oscillator 2) per oscillator
- Pulse width per oscillator
- Hard sync: oscillator 1 syncs to oscillator 2
- Square wave sub-octave generator (oscillator 1) per voice
- 500 user and 500 factory programs in 10 banks of 100 programs each
- USB for bidirectional MIDI communication
MIDI Connections IN; OUT; THRU Power Operates worldwide on voltages between 100 and 240 volts at 50 to 60 Hz; 30 watts maximum power consumption Inputs Left/mono and right audio outputs (2 x 1/4” phone jack)
Headphone output (stereo, 1/4” phone jack)
Volume expression pedal input
Sustain footswitch input
Sequencer start/stop footswitch input
Keyboard Type Full-sized, semi-weighted, 4-octave keyboard with velocity and aftertouch Sequencer Polyphonic step sequencer with up to 64 steps and rests Presets 500 user and 500 factory programs in 10 banks of 100 programs each Model OB-6 Synth
- Power Cabel
- Owner's Manual
Effects Stereo analog distortion
Dual, 24-bit, 48 kHz digital effects, including: reverb (room, hall, plate, spring), delay (full bandwidth digital delay and emulated bucket brigade), chorus, flanger, phase shifters, and ring modulator
True bypass maintains fully analog signal path when digital effects are off
Dimensions 31.8”L x 12.7”W x 4.6H Controllers Pitch Bend
Filter cutoff expression pedal
Volume expression pedal
Sequencer start/stop footswitch
Arpeggiator Selectable note value: 16th note, 8th note triplet, 8th note, dotted 8th note, quarter note
One, two, or three octave range
Up, down, up/down, random, and assign modes
Weight 20 lbs. Sound Engine Type Two discrete VCOs per voice
Continuously variable wave shape (sawtooth and variable-width pulse, plus triangle on oscillator 2) per oscillator
Pulse width per oscillator
Hard sync: oscillator 1 syncs to oscillator 2
Square wave sub-octave generator (oscillator 1) per voice
Low frequency mode (oscillator 2)
Keyboard tracking on/off (oscillator 2)
Oscillator detune amount for increased tuning instability, from subtle to extreme
MIDI Sequencer Yes USB MIDI Connector Yes
The manufacturer's warranty covers parts for one year and labor for one year from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.