Korg KPR-77 Programmable Rhythm

Korg KPR-77 Image

The KPR-77 was Korg's answer to the TR-606 drum machine. Like the 606, the KPR-77 is basically an analog machine. Its sounds consist of bass, snare, two toms, open and closed hi-hats, accent and (switchable) cymbal/clap. Each drum sound's level can be individual mixed via the sliders. Unfortunately the KPR does not sound nearly as nice as the 606 can. But it has a simple LCD programming display sort of like what the TR-505 sports.

Korg KPR-77 Image

It holds up to 48 patterns (3 groups of 16) and two songs. A pattern can hold up to 32 steps. Like the TR-606, the KPR can be battery operated and REQUIRES batteries for retention of your programmed drum patterns and songs when it is turned off! Fortunately a casette out lets you store its memory to tape for offline storage. The KPR-77 has DIN SYNC IN/OUT as well as Tom trigger outs (like the 606) for external control and triggering. However, Korg's DIN Sync is not the same as Roland's DIN Sync. When syncing Roland and Korg gear via DIN sync, they will work however the Korg machine will run at 1/2 the tempo/speed of the Roland unit. This is because Korg uses a 48 ppqn (parts per quarter note) DIN standard whereas Roland's is 24 ppqn. This can be corrected with several devices which will translate 24-48 sync, such as the Korg KMS-30.

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19 Visitor comments
April 21, 2014 @ 1:59 pm
Humdrum???? No way. Very rare machine with amazing analog sounds.
Compatible with korg poly 61 polysix ms20 etc.
March 18, 2014 @ 2:21 pm
ch eck out this guy w/ a kpr77 from gaz nevada
August 23, 2013 @ 7:04 pm
Looking for one of these in working condition! USA!

Hue Awkwardstares
May 3, 2013 @ 7:23 am
the audio example provided sounds peculiar, as if it were samples of a KPR's sounds & metronome w/ a bit of swing. I could be wrong.
All I know is that my KPR doesn't really sound the sane. Maybe I could mute the closed hihats...
http:/ /soundcloud.com/the-quiet-overhead/all-that-jelly-much-to-much
February 9, 2013 @ 1:28 pm
I hear talk that's either flat out good or bad about this machine. I've worked with one for a while and it sounded great. All of the sample kits I've heard sound [beep] though. This leads me to believe that it is, just like many analog boxes of the era, not consistent from machine to machine. I've noticed this with the 606 and the 303. The 303s even used a different transistor in later models. Maybe that's what's happening here and some runs of the KPR-77 are substantially better/different sounding than others.
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Rated 3.46 (237 Votes)

  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 6 voices
  • Sounds - bass, snare, hi/low toms, open and closed hi-hats, accent and (switchable) cymbal/clap
  • Controls - Tempo, Volume, Level per drum part and Accent
  • Patterns - 3 Banks x 16 patterns (48 total)
  • Songs - Two
  • Keyboard - None
  • Effects - None
  • Control - DIN SYNC (48ppqn) IN/OUT, Trigger Outs from Toms
  • Date Produced - 1983
  • Resources & Credits
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