---
product_id: 51252328
title: "Sequential OB-6 Keyboard 6-Voice Polyphonic Analog Synthesizer"
brand: "dave smith"
price: "€ 7139.97"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/51252328-sequential-ob-6-keyboard-6-voice-polyphonic-analog-synthesizer
store_origin: ES
region: Spain
---

# Sequential OB-6 Keyboard 6-Voice Polyphonic Analog Synthesizer

**Brand:** dave smith
**Price:** € 7139.97
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Sequential OB-6 Keyboard 6-Voice Polyphonic Analog Synthesizer by dave smith
- **How much does it cost?** € 7139.97 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/51252328-sequential-ob-6-keyboard-6-voice-polyphonic-analog-synthesizer)

## Best For

- dave smith enthusiasts

## Why This Product

- Trusted dave smith brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

The 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 SEMinspired state-variable filter (low-pass, high-pass, band-pass, and notch) per voice. Voltage-controlled amplifiers complete the all-analog signal path. Present also is X-Mod, with filter envelope and oscillator 2 as modulation sources (with bi-polar control). 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. Toggling on the Manual switch enables live panel mode, in which the OB-6 switches to the current settings of its knobs and switches. A dual effects section provides studio-quality reverbs, delays (including standard and BBD), 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, the OB-6 features a multimode arpeggiator and a polyphonic step sequencer with up to 64 steps (and up to 6 notes per step) plus rests. It allows polyphonic keyboard input and can sync to external MIDI clock. The full-size, four-octave, semi-weighted keyboard is velocity and aftertouch sensitive.

## Features

- 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
- Oscillator Detune Amount for Increased Tuning Instability, from Subtle to Extreme

## Images

![Sequential OB-6 Keyboard 6-Voice Polyphonic Analog Synthesizer - Image 1](https://m.media-amazon.com/images/I/61MRv3iNiRL._AC_UL320_.jpg)
![Sequential OB-6 Keyboard 6-Voice Polyphonic Analog Synthesizer - Image 2](https://m.media-amazon.com/images/I/61MRv3iNiRL._AC_UL480_FMwebp_QL65_.jpg)
![Sequential OB-6 Keyboard 6-Voice Polyphonic Analog Synthesizer - Image 3](https://m.media-amazon.com/images/I/61MRv3iNiRL._AC_UL640_FMwebp_QL65_.jpg)
![Sequential OB-6 Keyboard 6-Voice Polyphonic Analog Synthesizer - Image 4](https://m.media-amazon.com/images/I/61MRv3iNiRL._AC_UL800_FMwebp_QL65_.jpg)
![Sequential OB-6 Keyboard 6-Voice Polyphonic Analog Synthesizer - Image 5](https://m.media-amazon.com/images/I/61MRv3iNiRL._AC_UL960_FMwebp_QL65_.jpg)

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**Shop now:** [https://www.desertcart.es/products/51252328-sequential-ob-6-keyboard-6-voice-polyphonic-analog-synthesizer](https://www.desertcart.es/products/51252328-sequential-ob-6-keyboard-6-voice-polyphonic-analog-synthesizer)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-22*