Casio SK-2 Synthesizer Information, Specifications and Resources

Author: Andy Merrett / Data Driven

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Casio SK-2

Overview

The Casio SK-2 is a synthesizer with sampling capabilities released in 1987. It is aimed at musicians wanting to create and modify their own sounds.

The SK-2 has 32 synth/organ style mini keys without touch sensitivity or aftertouch. It has four notes of polyphony. It has five on board sounds including pianos and real world sounds, accompaniments and rhythms, and no pedals.

The SK-2 uses Casio's PCM, a classic wave-based synthesis offering basic sampled sound playback.

It has the ability to record and play back user performances. It has no built-in learning system. It has a built-in amplifier and speakers. It can run from both AC and battery power.

It's a part of the SK family of instruments.

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Disclosure

Check out the latest Casio instruments on Amazon

As the Casio SK-2 is 39 years old, you may find used models and spare parts on ebay.

The launch date of the SK-2 is not entirely clear, though it would've been the early 1980s. It feels like a cut down version of the SK-1.

Specifications

Form

Number of Keys: 32
Key Weight: Synth
Key Size: Mini
Touch Sensitive:
Aftertouch:

Sound

Number of Voices: 5
Polyphony: 4
Sound Generation: PCM
Piano Sounds:
Real World Sounds:
Sounds Editable:
Accompaniments:

Extra Features

Recorder/Sequencer:
Tutorials:

Communication

MIDI:
USB:
Tablet Connectivity:

Power

AC Power:
Batteries:

Audio

Speakers:
Audio Out:
Audio In:

Pedals

Sustain Pedal:
Soft Pedal:
Expression Pedal:

Release Info

Year: 1987
RRP: Unknown

Description

Despite the higher model number, the SK-2 looks to have fewer functions than the SK-1. It has 32 mini keys and uses the same sound technology (8-bit PCM), is four note polyphonic, has five preset tones (piano, vibraphone, trumpet, flute, clarinet) plus pipe organ as a default sample sound. Six auto-rhythms.

It has a 496 step real-time memory. Sampling rate of 9.38kHz and sampling time of 0.6s, which is about half of the SK-1. Effects are envelope, reverse and loop, with 16 pattern repeat.

Although the unit can be run from batteries or power pack, there is no other input or output jacks, making it far less versatile for use in music setups than the SK-1. It’s a shame as you only get to use the built-in mic for getting sound in, although I expect someone could hack the internals if they wanted sound input and output.

FAQ

What year was the Casio SK-2 launched?

This instrument was launched in 1987

What other models did Casio release in 1987?

What models did other manufacturers release in 1987?

What other synths were released at a similar time?

Have your own question about the Casio SK-2? Email us and we'll research it for you.

Resources

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Purchase Links

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More Info

Added: 2026-01-26 Updated: 2026-02-13 ID: 1275

Instruments from 1986 Instruments from 1987 Instruments from 1988 Instruments from the 1980s
32 key instruments mini sized key instruments Casio instruments
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