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Oberheim OB1 / OBI (OB-I, OB-1) Synthesizer

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OBERHEIM OB-1 Synthesizer
OBI – OB-I Synth (OB1 , OB-1)

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OBERHEIM OB 1
 this 2 OSCed synth had everything one could dream of: pulse or triangular and both could be set in it’s symmetry (like on the matrix 6) so you could have PWM pulse waves and everything between triangle and sawtooth (up/down)!!, syncable VCOs, 12 and 24dB/oct slope for the filter (lpf) amd 8 memories (eight!)

only „limitation“ to the ob1 are those level switches for vco mix and noise etc.. 0dB,-3dB or off but: both VCOs got another subosc with these switches! so at least you have „4 OSCs“..
anyway it is a bit thinner than the SEM modules VCOs but more versatile. filters: same, it’s 2 or 4 pole, compared to the „magic knob“ on the SEMs to seamlessly „morph“ from LPF via notch to HPF, the „OFF“ position is BPF. on the OB-1 it is 12 or 24dB LPF only.
bowing the bender down adds some noise to the sound! sounds cool!
envs: quite fast!
lfos: well, average..

has Crossmodulation
and a nice noise mod on the lever
… OB 1

 OB I
oberheim OB1
OB-I
click image to enlarge – pic by theo bloderer @ bluesynths.com
 guess why ppl may think of star wars? ;) think obi wan..
oberheim OB-1 synthesizer
enlarge pic? just click on it!!
bowing the bender down adds some noise to the sound! sounds cool!
ob1 jacks on the back
enlarge pic? just click on it!!


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Oberheim Oberheim Synth overview..

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