Yamaha RX21

Digital rhythm programmer

Yamaha RX21 drum machine
Buy one (26 on sale)

1985 (July)
Initially sold for ¥42,000

The entry-level RX21 was one of the cheapest programmable drum machines available in 1985.

It's very small, built with the classic Yamaha black plastic and rubber buttons. 9 decent voices, that are available directly from the pads, are used to create the 40 preset patterns.

Yamaha RX21 brochure
Yamaha RX21 brochure
Yamaha RX21 on Electronics & Music Maker, Sep 1985
Yamaha RX21 on Electronics & Music Maker, Sep 1985

Technical
specifications

Sound source

256Kbit wave ROM x 2
9 voices

Memory capacity

100 patterns
4 songs
512 maximum parts within songs

Connection terminals and interfaces

Output L, Output R, Output Phones
Cassette IN, Cassette OUT
MIDI IN, MIDI OUT

Dimensions and weight

350w x 56h x 203d (mm) / 13-25/32” x 2-13/64” x 8”
1.3Kg / 2lb. 14oz.

Buy a used
Yamaha RX21

YAMAHA RX21 Digital Rhythm Programmer w/power supply TESTED WORKING vintage drum

Buy used YAMAHA RX21 Digital Rhythm Programmer w/power supply TESTED WORKING vintage drum
$69.00
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YAMAHA RX21 Vintage Latin Percussions Drum Machine, Power UNTESTED Free Ship!

Buy used YAMAHA RX21  Vintage Latin Percussions Drum Machine, Power UNTESTED  Free Ship!
$69.99
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Yamaha RX21 Digital Rhythm Programmer

Buy used Yamaha RX21 Digital Rhythm Programmer
$69.99
Open Ebay

If you're looking to buy a used Yamaha RX21,
check out these listings pulled daily from Ebay and Reverb.

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