Sequential OB-6 Analogue Synthesizer Desktop Module

Condition  Brand New
Warranty  1 Year Warranty
Delivery  Free Delivery

  • Classic Oberheim sound
  • Vintage SEM tone
  • Dual effects
  • X-Mod & poly step sequencing
  • Easy to program, easy to play!
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Condition  Brand New
Warranty  1 Year Warranty
Delivery  Free Delivery

  • Classic Oberheim sound
  • Vintage SEM tone
  • Dual effects
  • X-Mod & poly step sequencing
  • Easy to program, easy to play!

Product Details

Product: Sequential OB-6 Analogue Synthesizer Desktop Module

SKU: DDJ3747

Condition  Brand New
Warranty  1 Year Warranty
Delivery  Free Delivery

Dave Smith Desktop Synth Module

The Sequential Dave Smith Instruments OB-6® desktop module is just as powerful and easy to use as its counterpart, the OB-6 Keyboard. The module has all of the same controls as the keyboard version and provides the same immediacy and ease of use. As with the OB-6 Keyboard, all parameters are at your fingertips, with full-sized knobs and switches and a comfortable, intuitive layout.

How does it sound? Massive — just like the keyboard, because on the inside, it’s exactly the same. The same analog signal path with discrete VCOs and VCFs. The same high-quality digital effects. The same classic Oberheim sound that has been earning raves from musicians around the world.

We’ve also added a poly chain feature so that any two OB-6s can be paired for twelve-voice polyphony!

Both the OB-6 desktop module and OB-6 keyboard are 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.

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.

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.

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.

This analog powerhouse is packed into a desktop module that’s small enough to fit in a backpack. It’s an ideal combination of portability and power for the project studio or the gigging musician.

  • Classic Oberheim sound
  • Vintage SEM tone
  • Dual effects
  • X-Mod & poly step sequencing
  • Easy to program, easy to play!
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-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
FILTER ENVELOPE 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, 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
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 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” phone jack)
Headphone output (stereo, 1/4” 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 20.75” L x 7.8” W x 4.4″ H (52.0 cm x 19.8 cm x 11.2 cm)
13.0 lbs (5.9 kg)
Walnut end panels

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We offer free delivery on all of our items (UK mainland only) please see details below.

Destination Delivery Times Cost
UK Mainland Economy (only available for orders over £70) 3-5 Working Days* Free of charge
UK Mainland Express Next Day* £4.99
UK Mainland Saturday and Sunday Saturday or Sunday £14.99
Northern Ireland, Scottish Highlands 2 Working Days* £11.99
Scottish Islands, Channel Islands, Isle of Man, Isles of Scilly 2 Working Days* £14.99

*Applies to in stock items. Orders placed after 5pm will be dispatched the following working day, next day delivery does not include Saturday or Sundays. Some services are only available to UK mainland addresses.

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Delivery times range from 2-4 days, 4-9 for remote areas.

A quick glance at some of our rates...

Destination Delivery Times Cost
Republic of Ireland, Belgium, France, Germany, Italy & Netherlands 2-4 Working Days £14.99
Spain, Austria, Denmark, Hungary 3-5 Working Days £19.99

Rest of the World

We can ship anywhere in the world, if you are outside of the EU we will knock 20% VAT off the price, rates depend on weight so please get in touch for an accurate price, [email protected]

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