Name: Dave Smith Instruments Sequential OB-6 Analog Synthesizer
Brand: Sequential
Price: 3499.99 USD
Availability: OutOfStock

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Dave Smith Instruments OB-6 Polyphonic Analog Synthesizer

$3,499.99

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EARN A $50 OR $100 STATEMENT CREDIT.***

From August 1-31, 2025, open a new Synchrony Music & Sound credit card and use it to make a qualifying single-receipt purchase of $999 - $1,998.99 to earn a $50 statement credit or make a qualifying single-receipt purchase of $1,999 or more to earn a $100 statement credit.

***Subject to credit approval. In order to qualify for this offer, customer must open a new Synchrony Music & Sound credit card and use their new Synchrony Music & Sound credit card to make a qualifying single-receipt purchase of $999 or more to earn a $50 statement credit or $1,999 or more to earn a $100 statement credit (net purchases minus any returns or adjustments during the promotional period) between August 1 – 31, 2025. Qualifying purchase must post to their account by September 7, 2025. For accounts that qualify, a $50 or $100 statement credit will post to customer’s account within 2 billing cycles after the promotion ends. Offer is valid for newly opened Synchrony Music & Sound accounts and only one $50 or $100 statement credit can be earned per account. Statement credit cannot be used to satisfy the required monthly payment on their Synchrony Music & Sound credit card account and may not be redeemed for cash or cash equivalent. Account must remain open, be in good standing, and not become delinquent at the time statement credit is applied. Accounts approved after August 30, 2025 are not eligible for this offer. If application is submitted during the offer period, but is approved outside of the offer period, cardholder will not be eligible for this offer.
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Dave Smith Instruments Sequential OB-6 Analog Synthesizer

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Available for special order - contact us for details

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Dave Smith Instruments OB-6 is a collaboration between synth pioneers Dave Smith and Tom Oberheim. OB-6 is a 6-voice synthesizer with an all-analog signal path and discrete VCOs and filters. The full-size, four-octave, semi-weighted keyboard is velocity- and aftertouch-sensitive and houses a sound engine inspired by Oberheim’s original SEM, which was also the core of his acclaimed 4- and 8-voice synthesizers. This new instrument is designed to provide true, vintage SEM tone with the stability and flexibility of modern technology.

The classic, bold SEM sound is all there
OB-6 features two discrete voltage-controlled oscillators (plus sub-oscillator) per voice with continuously variable waveshapes (sawtooth and variable-width pulse, with triangle on oscillator 2). There is a classic SEM-inspired state-variable filter (low pass, high pass, band pass, and notch) per voice. Voltage-controlled amplifiers complete the all-analog signal path.

Modulation
Present also is X-mod, with the filter envelope and oscillator 2 as modulation sources. Destinations include oscillator 1 frequency, oscillator 1 shape, oscillator 1 pulse width, filter cutoff and filter mode. The knob-per-function front panel puts virtually all parameters at a user’s fingertips without any menu diving. Toggling the Manual switch enables live panel mode, in which OB-6 switches to the current settings of its knobs and switches.

Studio-quality effects
A dual effects section provides studio-quality reverbs, delays, chorus and faithful recreations of Tom Oberheim’s acclaimed phase shifter and ring modulator. The effects are digital with 24-bit 48 kHz resolution, but a true bypass maintains a full analog signal path. Additionally, OB-6 features a multimode arpeggiator and a polyphonic step sequencer with up to 64 steps (and up to 6 notes of polyphony per step) plus rests. It allows polyphonic keyboard input and can sync to external MIDI clock.

MPE support
Support for MIDI Polyphonic Expression enables OB-6 to respond to MPE-driven controllers such as LinnStrument, Expressive E Osmose, Roli Seaboard series and others.

Vintage mode
Vintage mode gives OB-6 a looser, more organic sound that emulates the behavior of vintage synthesizers where the behavior of individual oscillators, filters and envelopes vary from voice to voice.

Specification	Value
SKU	DSI-OB6
Vendor	Sequential
Aftertouch	Yes
Analog Digital	Analog
Built In Speakers	No
Included From Manufacturer	Power Cable
Keys Weighted	Semi-Weighted
Number of Keys	49
Key Size	Full Size Keys
Midi	In, Out, and Thru
Mono Poly	Polyphonic
MPN	DSI-2700
Product Unique Features	Support for MIDI Polyphonic Expression (MPE) control messages Vintage mode for looser, more organic sound
Arpeggiator	Yes
Audio File Playback	No
Control Connections	Footswitch: sequencer start/stop Footswitch: sustain Expression pedal: volume Expression pedal: filter
Onboard Controllers	Backlit pitch and mod wheels Arpeggio latch
Effects	Delay Chorus Reverbs Phase shifter Ring modulator
Audio Inputs	None
Audio Outputs	1/4" stereo L/R 1/4" headphones
Internal Storage Capacity	n/a
Key Action	Semi-weighted synth action
Oscillators per Voice	2 plus Sub
Product Weight	21 lbs.
Programs/Presets	500 user programs 500 factory programs
Sampling	n/a
Sequencer	64-step polyphonic
Speakers	None
USB Port (to Host)	MIDI;System Updates;Editor/Librarian/Patch Manager
Voices of Polyphony	6
Width	32"
Depth	12.7"
Height	4.6"

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