MATRIXSYNTH: Univox SR-55 Drum Machine SN 700504


Wednesday, November 15, 2023

Univox SR-55 Drum Machine SN 700504

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"The Univox SR-55 Super Rhythmer aka Korg Mini-Pops 3 is a fully analog drum machine featuring 20 different presets rhythms to choose from with 15 different drum voices total.

Volume, Tone, and Tempo are all adjustable and the different rhythms are arranged in 2 layers that you toggle between using the switches directly beneath the beat buttons.

The rhythm patterns are standard for the era but it does have a unique section for combining 6 types of kick & snare and 6 hi-hat patterns for the Fox Trot and Swing Rhythms (making 72 possible combinations!) and like most other machines of this type, the patterns can be combined by selecting multiple rhythms.

Also has Bass-Snare balance and Brush-Cymbal balance.
These machines were very popular in the 70's and the only competition was the Gibson Maestro MRQ-1!

The SR-55 is a very rare rhythm machine made by Keio Electronics of Japan as Korg Mini-Pops 3, marketed in the USA by UNIVOX (Shin-ei).

It plays great vintage beats (especially Latin rhythms), great for blues, reggae and rock.
SR-55 was used by Kraftwerk early on.


What's cool about this box is you can 'trick' it to vary a preset beat by depressing 2 of the style buttons together, some might latch and you'll have a hybrid pattern."

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