Crumar OMB-2 One Man Band Pedal Synth

Note: Auction links are affiliate links for which the site may be compensated. Crumar Bass Pedals- Model OMB-2 Demo by J.J. (one man band )
video upload by James Owen


video upload by blenderhand

Note the videos above are older demos I found on Youtube. The listing below is from another seller. Note the low serial number.

SN A 2 via this auction

"Crumar OMB-2, crumar one man band. Extremely cool and vintage.

It produces a basic analog synth bass sound but has an external rhythm box.On the pedal board are 13 bass pedals and a volume pedal with 2 switches. One switch is used to have the chords switched to minor, the other to 5ths. Also 3 push buttons for start/stop, manual/auto bass and sustain mode. The rhythms are basic and only have a few controls for volume. You can control chords, rhythm and bass volume as well the overal volume. Some switches to enable or disable chords etc. are on it too.

Hasn’t been serviced since the 1970s. sometimes need to hold bass notes down for couple seconds before note is proper. Rhythm volume only working in one position for drums, all other volume knobs working fine."

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Crumar OMB-2

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via this auction

You can find pics of the complete system in previous posts here.

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Crumar OMB-2 Analog Synth Bass Pedal & Drum Machine SN 814

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via this auction

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CRUMAR OMB-2 SYNTH BASS PEDALS

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via this auction

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Crumar OMB-2 Made In Italy Unique Bass Pedal Synthesizer

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via this auction

"Crumar was an Italian company that was famous for their keybord instruments. The OMB-2 was one of their few ventures into analog drum sounds. OMB stands for one-man band. It not only has drum patterns, it also has rhythm and bass. The main unit had all of he controls to select and mix."

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Cumar OMB-2 Synth

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via this auction

"Crumar was an Italian company that was famous for their keybord instruments. The OMB-2 was one of their few ventures into analog drum sounds. OMB stands for one-man band. It not only has drum patterns, it also has rhythm and bass. The main unit had all of he controls to select and mix."

CRUMAR OMB-2 Analog Synth Bass Pedal & Drum machine

via this auction

Description appears to be pulled from Beat Box!. You'll find other vintage rhythm machines there as well.

"Crumar was an Italian company that was famous for their keybord instruments. The OMB-2 was one of their few ventures into analog drum sounds. OMB stands for one man band. It not only has drum patterns, it also has rhythm and bass. The main unit had all of the controls to select and mix. The pedal board allows you to play bass on the pedals manually, or when it auto mode, select what key your bass pattern is playing in. The volume pedal is a nice feature. This outfit was one of the early one man band units and helped pave the way for hundreds of solo musicians that needed 'electronic side men' ."

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Crumar Performer Schematics

images via this auction

"Crumar Schematics
- 10 pages of schematics for the Performer
- Performer Parts List
- DS 2 and Performer Interface guide (2 pages)
- one page of handwritten service info about the performer
- one page schematic for the C.P.B-1
- five pages of schematics for the O.M.B 2 synth (photocopied)"