Oberheim OB-6 - Sintisajzer
The OB-6 from Dave Smith Instruments is a modern, all-analog 6-voice polyphonic synthesizer that pays tribute to Tom Oberheim's SEM 4-voice and 8-voice synthesizers, but with several enhancements. The synth features true voltage-controlled oscillators, a classic Oberheim-inspired 2-pole, state-variable resonant filter, amplifiers, envelopes, and an LFO. Additional enhancements include studio-quality effects, a polyphonic step-sequencer, and an arpeggiator; all of which can be synchronized internally or via external MIDI clock.
Oscillators:
• 2x discrete VCOs per voice
• Wave Shape per Oscillator (Continuously Variable): Sawtooth and variable-width pulse, plus triangle on oscillator 2
• Pulse width per oscillator
• Hard Sync: Oscillator 1 syncs to oscillator 2
• Square Sub-Octave Generator: Oscillator 1 per voice
• Low-Frequency Mode: Oscillator 2
• Keyboard Tracking: On/off (oscillator 2)
• Oscillator Detune: 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
Envelope Generators:
• Filter Envelope: Four-stage (ADSR) envelope generator with velocity modulation of envelope amount
• Amplifier Envelope: Four-stage (ADSR) envelope generator with velocity modulation of envelope amount
LFO:
• 5x 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
• 1, 2, or 3 octave range
• Up, down, up/down, random, and assign modes
Sequencer:
• Polyphonic Step Sequencer: 64 steps and rests
Effects:
• Stereo analog distortion
• Dual, 24-bit, 48 kHz Digital Effects: Reverb (room, hall, plate, spring), delay (full bandwidth digital delay and emulated bucket brigade and tape delays), chorus, and phase shifter
• Delay sync
• True Bypass: Maintains fully analog signal path when digital effects are off
Controls:
• Keyboard: Full-sized, semi-weighted, 4-octave with velocity and aftertouch
• Pich Wheel: Backlit, spring-loaded with selectable range per program (1 to 12 semitones up and down)
• Mod Wheel: Backlit
• Transpose: 8-octave range
• Hold Switch: latches held notes on
• Polyphonic Glide: Portamento
• Unison (Monophonic) Mode: 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:
• 1000 Programs: 500 user / 500 factory programs in 10 banks of 100 programs each
• Direct program access, including single-button access to the current set of 10 programs
Input & Output:
• Left/Mono & Right Audio Outputs: 2 x 1/4" / 6.35 mm phone jack
• Headphone Output: Stereo, 1/4" / 6.35 mm phone jack
• MIDI: In, out, and thru ports
• USB: Bi-directional MIDI communication
• Filter cutoff expression-pedal input
• Volume expression-pedal input
• Sustain footswitch input
• Sequencer start/stop footswitch input
Power:
• 100/240 volts at 50/60 Hz
• Power Consumption: 30 W maximum
• IEC AC power inlet for internal power supply
Dimensions:
• 32.0 x 12.7 x 4.6" / 81.3 x 32.3 x 11.7 cm
Weight:
• 20.0 lb / 9.1 kg
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