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Korg KPR-77 - Image 1

Korg KPR-77

Drum MachineAnalog

Back in 1983, this little drum machine stepped up as Korg's direct rival to the Roland TR-606, packing pure analog punch into a portable, battery-powered box that could run anywhere without missing a beat.

Its analog synthesis engine delivers six classic voices—bass drum, snare with discrete output, two toms, open and closed hi-hats, plus a switchable cymbal/clap—each with individual level sliders for precise mixing and an accent circuit that adds subtle timbral bite. Program up to 48 patterns across three banks of 16, each stretching to 32 steps, then chain them into two songs with a deal sensor for smooth playback; a simple LCD display makes step sequencing intuitive, just like tapping out rhythms on its 16 pads. At 1.5kg with a compact footprint, it features stereo main and headphone outs, DIN sync in/out at 48ppqn for linking with other Korg gear (though it halves speed with Roland units), tom trigger outs, clock out, and a cassette interface to save your patterns offline since batteries retain memory only when powered. No effects or MIDI stock, but that's part of its raw, vintage charm.

Over the years, players appreciate its straightforward programming and that switchable clap for versatility, though some note the sounds lack the 606's snap—still, it's a sleeper hit for collectors chasing authentic '80s analog grit without the hype.

Released

1983

Status

Discontinued

Synthesizer
Format
Drum Machine
Type
Analog
Internal Battery
Yes
Voice
A/D
Analog
Polyphony
-
Oscillators
-
Oscillator Type
-
Voices
6
Tracks
6
Filter
No
Envelopes
-
LFO
-
Effects
No
Expression
Aftertouch
No
Velocity
No
MPE
No
Additional
-
Software
-
I/O
Audio In
-
Audio Out
1 stereo
Headphone
stereo
MIDI
-
MIDI Type
-
Ports
Clock Out
Wi-Fi
No
Workflow
Arpeggiator
-
Sequencer
Yes
Mod Matrix
-
Memory
-
Measurements
Dimensions
-
Weight
1.5 kg
Last updated Feb 27, 2026