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The Dave Smith Instruments OB-6 is the result of a collaboration between 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.

Dual Effects
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.

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: triangle, 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

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

Aftertouch

  • Source: channel (mono) aftertouch with bi-polar amount
  • Destinations: oscillator 1 frequency, oscillator 2 frequency, LFO amount, amplifier envelope amount, filter envelope amount

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 and tape delays), 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 off, 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

Product Specs

Condition
Brand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
Brand Dave Smith Instruments
Model OB-6 Analog Synthesizer
Categories Analog Synths
Number of Keys 49 Keys

Awesome cables! No noise

Antonio R. - March 31, 2020

Great!!!

Graham H. - March 31, 2020

Exactly as ordered!

Rhett P. - March 31, 2020

Looked brand new. Quick shipping

Sweep O. - March 31, 2020

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Shipping Policy

Ships from Ferndale, MI, United States to:

Continental U.S.
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Free shipping with tracking to the continental United States unless otherwise noted. Alaska, Hawaii, and international shipments may incur additional charges.

Tax Policies

Taxes are charged in the following regions either by the seller, per their tax policy, or by Reverb as a Marketplace Facilitator:

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Return Policy

Return Window

This product can be returned within 30 days of receipt.

General Terms

Items must be returned in original, as-shipped condition with all original packaging and no signs of use. Buyer assumes responsibility for all return shipping costs unless the item was not received as described.

Refunds

Buyer receives a full refund in their original payment method less any shipping costs.

Special Conditions

We make returns easy

We do our best to help you choose the perfect gear, but if you don’t love it in the first 30 days after receipt, please contact customer service for a return authorization.

Contact customer service Monday-Friday from 10 AM and 6 PM Eastern Time. Email customerservice@vintageking.com or call 888.653.1184, and press 2. If outside the United States please call 1.248.591.9276.

Avoid Restocking Fees

Help us sustain our Easy Return policy. To reserve your right to return the gear within 30 days with no re-stocking fees please observe these steps upon receipt of item(s):

Keep all packaging in like-new condition. Open packaging gently and carefully.

- When opening package use scissors and try avoid tearing packaging.
- Take note of how components are packed.

Keep all items in new condition unless 100% sure you’re keeping the gear.

- Avoid scuffs and scratches in handling and rack mounting.
- We recommend rack mounting only after you’re certain you’re keeping the gear.
- If rack mounting, use plastic washers and beware of metal rack screws’ tendency to scratch rack-mount holes.

Include everything that came with your purchase. If equipment or accessories are damaged or missing, a re-stocking fee will apply upon return.

How to Return your Items

Domestic Returns:

- Contact Vintage King to obtain a Return Authorization (RA).
- Place a copy of the RA inside the package of the items for return.
- Write RA number anywhere on your airbill, not on the box or packaging.
- Returns must be complete including accessories and documentation with original packaging.
- You are responsible for return shipping costs including shipping insurance which is recommended to protect your items, as you are liable for items damaged during return shipment. Remember you own it until we receive it.
- Obtain a tracking number to provide proof of your return before the end of the 30-day grace period in order to avoid a re-stocking fee.

The following products are NOT returnable:
- Special Order Items - Items that are non-stocking and require special ordering
- Personal items - Items that require intimate contact with the body during use, including in-ear headphones and microphone windscreens
- Custom built cabling, mic input panels and stage boxes
- Software
- Computers
- Hard Drives
- Recording Master Tape
- Studio furniture, racks and chairs
- Items shipped via freight

We will inspect your return once it’s received. If you have met the above conditions and the items are all in like-new condition, you will get your choice of a full refund or credit on account.
- If any of the above conditions are not met, Vintage King reserves the right to charge a fee equal to our costs to return the item to like-new condition.
- NOTE: If you received Free Shipping on your order, the value of the uncharged shipping cost will be deducted from your refund or credit.

International Returns:

Important: In order to avoid unnecessary duties or taxes when returning your item(s), you MUST use the customs and shipping documents Vintage King provides along with your Return Authorization. Vintage King will refuse shipment of items when customer fails to use Vintage King provided customs and shipping documents or returns items without prior authorization. All costs are the sole responsibility of the customer.

- Contact Vintage King to obtain a Return Authorization (RA).
- Place a copy of the RA inside the package of the items for return.
- Write RA number anywhere on your airbill, not on the box or packaging.
- Returns must be complete including accessories and documentation with original packaging.
- You are responsible for return shipping costs including shipping insurance which is recommended to protect your items, as you are liable for items damaged during return shipment. Remember you own it until we receive it.
- Obtain a tracking number to provide proof of your return before the end of the 30-day grace period in order to avoid a re-stocking fee.

The following products are NOT returnable:
- Special orders
- Personal items (earphones, headphones, etc)
- Software
- Computers
- Hard Drives
- Tape
- Over-size or over-weight items

We will inspect your return once it’s received. If you have met the above conditions and the items are all in like-new condition, you will get your choice of a full refund or credit on account. If any of the above conditions are not met, Vintage King reserves the right to charge a fee equal to our costs to return the item to like-new condition. Note: we reserve the right to deny any return to any customer if there is any history of abusing the Vintage King return policy.

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Vintage King Audio

Ferndale, MI, United States
Joined: Sep 2015

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Dave Smith Instruments OB-6 Analog Synthesizer
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