<h2>Sequential Instruments - OB 6 Desktop Module</h2><p style="color: #000000;"><i>The OB 6 is a 6-Voice Polyphonic Analog Synthesizer, classic 
Oberheim-inspired 2-pole, state-variable, resonant filter provides 
low-pass, high-pass, band-pass, and notch functionality.</i></p><p><br />The Sequential <span style="letter-spacing: 0px;">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.</span></p>
<p>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.</p>
<p>We’ve also added a poly chain feature so that any two OB-6s can be paired for twelve-voice polyphony!</p>
<h3>Two Legends. One Instrument</h3>
<p>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.</p>
<h3>Vintage SEM Tone</h3>
<p>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). Voltage-controlled amplifiers complete the all-analog signal path.</p>
<h3>Dual Effects</h3>
<p>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.</p>
<h3>X-Mod and Poly Step Sequencing</h3>
<p>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.</p>
<h3>Easy to Program</h3>
<p>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.</p>
<h3>Easy to Play</h3>
<p>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.</p><br /><h3>OB 6 Desktop Module Specifications</h3><h5><strong>OSCILLATORS</strong></h5>
<ul><li>Two discrete VCOs per voice</li><li>Continuously variable wave shape (sawtooth and variable-width pulse, plus triangle on oscillator 2) per oscillator</li><li>Pulse width per oscillator</li><li>Hard sync: oscillator 1 syncs to oscillator 2</li><li>Square wave sub-octave generator (oscillator 1) per voice</li><li>Low frequency mode (oscillator 2)</li><li>Keyboard tracking on/off (oscillator 2)</li><li>Oscillator detune amount for increased tuning instability, from subtle to extreme</li></ul>
<h5><strong>MIXER</strong></h5>
<ul><li>Oscillator 1 amount</li><li>Oscillator 1 sub-octave amount</li><li>Oscillator 2 amount</li><li>White noise amount</li></ul>
<h5><strong>STATE-VARIABLE FILTER</strong></h5>
<ul><li>Two-pole, resonant, filter per voice with low-pass, high-pass, 
band-pass, and notch functionality inspired by the original Oberheim SEM
 filter</li><li>Bi-polar filter envelope amount</li><li>Velocity modulation of envelope amount</li><li>Keyboard tracking: off, half, full</li></ul>
<h5><strong>FILTER ENVELOPE</strong></h5>
<ul><li>Four-stage (ADSR) envelope generator</li><li>Velocity modulation of envelope amount</li></ul>
<h5><strong>AMPLIFIER ENVELOPE</strong></h5>
<ul><li>Four-stage (ADSR) envelope generator</li><li>Velocity modulation of envelope amount</li></ul>
<h5><strong>LOW FREQUENCY OSCILLATOR</strong></h5>
<ul><li>Five wave shapes: sine, sawtooth, reverse sawtooth, square, and random (sample and hold)</li><li>Clock sync (internal or external MIDI clock)</li><li>Initial amount</li><li>Mod destinations: oscillator 1 frequency, oscillator 2 frequency, 
oscillator 1 and 2 pulse width, filter cutoff, filter mode, amp</li></ul>
<h5><strong>X-MOD</strong></h5>
<ul><li>Sources: filter envelope (bi-polar) and oscillator 2 (bi-polar)</li><li>Destinations: oscillator 1 frequency, oscillator 1 shape, oscillator
 1 pulse width, filter cutoff, filter mode, normal to bandpass filter</li></ul>
<h5><strong>AFTERTOUCH</strong></h5>
<ul><li>Source: channel (mono) aftertouch with bi-polar amount</li><li>Destinations: oscillator 1 frequency, oscillator 2 frequency, LFO 
amount, amplifier envelope amount, filter envelope amount, filter mode</li></ul>
<h5><strong>CLOCK</strong></h5>
<ul><li>Master clock with tap tempo</li><li>BPM control and display</li><li>MIDI clock sync</li></ul>
<h5><strong>ARPEGGIATOR</strong></h5>
<ul><li>Selectable note value: 16th note, 8th note triplet, 8th note, dotted 8th note, quarter note</li><li>One, two, or three octave range</li><li>Up, down, up/down, random, and assign modes</li></ul>
<h5><strong>SEQUENCER</strong></h5>
<ul><li>Polyphonic step sequencer with up to 64 steps and rests</li></ul>
<h5><strong>EFFECTS</strong></h5>
<ul><li>Stereo analog distortion</li><li>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</li><li>Delay sync</li><li>True bypass maintains fully analog signal path when digital effects are off</li></ul>
<h5><strong>PERFORMANCE CONTROLS</strong></h5>
<ul><li>Full-sized, semi-weighted, 4-octave keyboard with velocity and aftertouch</li><li>Backlit pitch and mod wheels</li><li>Spring-loaded pitch wheel with selectable range per program (1 to 12 semitones up and down)</li><li>Transpose controls for an 8-octave range</li><li>Hold switch latches held notes on</li><li>Polyphonic portamento</li><li>Unison (monophonic) mode with configurable voice count, from one to all six voices, chord memory, and key modes</li><li>Manual switch: when on, the front panel is live; what you see is what you hear</li></ul>
<h5><strong>PATCH MEMORY</strong></h5>
<ul><li>500 user and 500 factory programs in 10 banks of 100 programs each</li><li>Direct program access, including single-button access to the current set of 10 programs</li></ul>
<h5><strong>IN/OUT</strong></h5>
<ul><li>Left/mono and right audio outputs (2 x 1/4” phone jack)</li><li>Headphone output (stereo, 1/4” phone jack)</li><li>MIDI in, out, and thru ports</li><li>USB for bidirectional MIDI communication</li><li>Filter cutoff expression pedal input</li><li>Volume expression pedal input</li><li>Sustain footswitch input</li><li>Sequencer start/stop footswitch input</li></ul>
<h5><strong>POWER</strong></h5>
<ul><li>IEC AC power inlet for internal power supply</li><li>Operates worldwide on voltages between 100 and 240 volts at 50 to 60 Hz; 30 watts maximum power consumption</li></ul>
<h5><strong>PHYSICAL SPECS</strong></h5>
<ul><li>20.75” L x 7.8” W x 4.4″ H (52.0 cm x 19.8 cm x 11.2 cm)</li><li>13.0 lbs (5.9 kg)</li><li>Walnut end panels</li></ul><span id="product_description" itemprop="description"><h3>Sequential Instruments products are used by an ever-growing roster of well-known musicians. Call or chat with
 a RSPE representative today for more information.</h3>
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