Sequential OB-6 Keyboard

$2,999.00

Dave Smith OB-6 Keyboard

SKU: DSI-2700 Category:

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Two Legends. One Instrument

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.åÊThe OB-6 takes the classic bold Tom Oberheim sound ‰ÛÓ with its true voltage-controlled oscillators, 2-pole filter, and amplifiers ‰ÛÓ 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‰Ûªs 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.

Dual Effects

TheåÊdual effects section providesåÊstudio-quality reverbs, delays (standard and BBD), chorus, flangers, and faithful recreations of Tom‰Ûªs original phase shifter and ring modulator. While the effects themselves are digital, with 24-bit, 48 kHz resolution, a true bypassåÊmaintains 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 toåÊexternal 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 areåÊ500 permanent factory programsåÊand 500 rewritable user programs. Turning on the Manual buttonåÊenables live panel mode, in which the sound of the OB-6 switches to its current front panel settings. In this state, whatåÊyou 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.

åÊ

OSCILLATORS
  • 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
MIXER
  • Oscillator 1 amount
  • Oscillator 1 sub-octave amount
  • Oscillator 2 amount
  • White noise amount
STATE-VARIABLEåÊFILTER
  • 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
FILTERåÊENVELOPE
  • Four-stage (ADSR) envelope generator
  • Velocity modulation of envelope amount
AMPLIFIER ENVELOPE
  • Four-stage (ADSR) envelope generator
  • Velocity modulation of envelope amount
LOW FREQUENCY OSCILLATOR
  • Five 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,åÊamp
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
  • One, two, or three octave range
  • Up, down, up/down, random, and assign modes
SEQUENCER
  • Polyphonic step sequencer with up to 64 steps and rests
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
  • Delay sync
  • True bypass maintains fully analog signal path when digital effects are off
PERFORMANCE CONTROLS
  • Full-sized, semi-weighted, 4-octave keyboard with velocity and aftertouch
  • Backlit pitch and mod wheels
  • Spring-loaded pitch wheel with selectable range per program (1 to 12 semitones up and down)
  • Transpose controls for an 8-octave range
  • Hold switch latches held notes on
  • Polyphonic portamento
  • Unison (monophonic) mode with 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
  • 500 user and 500 factory programs in 10 banks of 100 programs each
  • Direct program access, including single-button access to the current set of 10 programs
IN/OUT
  • Left/mono and right audio outputs (2 x 1/4‰Û phone jack)
  • Headphone output (stereo, 1/4‰Û phone jack)
  • MIDI in, out, and thru ports
  • USB for bidirectional MIDI communication
  • Filter cutoff expression pedal input
  • Volume expression pedal input
  • Sustain footswitch input
  • Sequencer start/stop footswitch input
POWER
  • IEC AC power inlet for internal power supply
  • Operates worldwide on voltages between 100 and 240 volts at 50 to 60 Hz; 30 watts maximum power consumption
PHYSICAL SPECS
  • 31.8‰Û L x 12.7‰Û W x 4.6‰Û_ H (80.7 cm x 32.3 cm x 11.7 cm)
  • 20 lbs (9.5 kg)

Walnut end panels

Weight 4 lbs
Manufacturer

Condition

Brand

Sequential

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