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ROLAND DRUM MACHINES · REVIEWED GUIDE

What Is the Roland R-70 Rhythm Composer?

DIRECT ANSWER

The Roland R-70 is a PCM Rhythm Composer with 210 internal instruments, velocity- and aftertouch-sensitive pads, 14-note polyphony, editable user instruments, and built-in reverb, delay, chorus, and flanger. It includes multiple kick choices rather than one fixed signature bass drum.

Listen for these three things
  • The shape of the first 30–80 milliseconds: soft pulse, hard knock, or sampled acoustic impact.
  • How far the body and tail extend below the rest of the drum pattern.
  • Which parts are fixed by the original machine and which can be changed with controls, accent, performance, or external processing.

WHAT THE MACHINE IS

PCM rhythm composer with effects

  • Roland specifies a PCM sound source with 210 internal instruments and thirty-two copy-instrument locations.
  • The machine has sixteen main pads plus a positional pad, with velocity and aftertouch sensitivity.
  • Built-in effects include reverb, delay, chorus, and flanger.
  • It stores one hundred internal patterns and twenty songs, and provides stereo plus individual outputs.

THE KICK

What its kick generally sounds like

This is a listening guide, not a claim that every unit, recording, sample, or processed version sounds identical.

  • The R-70 does not have one universal kick sound; the result depends on the selected instrument and edits.
  • PCM sources can cover dry acoustic impacts, electronic kicks, and processed hybrids.
  • Effects and output routing can radically change the apparent envelope and space.
  • Velocity and performance controls make repeated kicks less static than a basic fixed-pattern machine.

CONTROLS AND LIMITS

What the original machine lets you change

Instrument choiceVelocityAftertouchLevelPanEffectsIndividual Outputs

A sample carrying this machine’s name may have been tuned, compressed, distorted, gated, layered, or resampled. Judge the source and processing chain rather than assuming the label proves an untouched hardware recording.

COMPARISON

How it differs from nearby Roland machines

The R-70 offers a much larger PCM library and integrated effects than the TR-505, TR-626, or TR-707. Compared with the R-8, it emphasizes a broad internal sound set and onboard effects while retaining detailed performance control.

ORIGINAL DESIGN DIRECTION

How to use the idea in KX1000

  1. Define the intended kick family before choosing sources.
  2. Use Transient, Body, and Sub to recreate the flexibility of selecting and editing different PCM instruments.
  3. Use Length, Tone, and Drive as deliberate variations rather than one permanent model.
  4. Create two or three velocity or character variants for repeated patterns.
  5. Keep the page and design language plural: R-70 kicks, not “the” R-70 kick.

Boundary: KX1000 is not presented as an exact R-70 circuit or sample emulator. The goal is to understand the role and build an original kick with related characteristics.

EVIDENCE AND SOURCES

Documents behind this answer

Confidence: High for machine architecture, controls, and documented specifications. Descriptions of audible character are practical listening guidance and can vary with unit condition, recording path, tuning, and processing.

QUESTION CLUSTER

Questions this page also answers

  • What is the Roland R-70?
  • What is the R-70 Rhythm Composer?
  • Does the Roland R-70 have kick drums?
  • What do R-70 kicks sound like?
  • Explain the Roland R70
APPLY THE PRINCIPLE

Build an original kick from Transient, Body, and Sub roles.

Use the machine as a listening reference, then shape a new result for the actual bass line, pattern, and mix.

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