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Akai XR-10

 

 

 

akai xr10

info Country: Japan
Weight: 1,7 Kg
Dimensions: 350 (w) x 241 (h) x 68 (d) mm
audio demo price trend: 100€
manual demo video samples comments

Akai XR-10
16 bits PCM DRUM MACHINE (1990)

 

Budget digital drum machine based on 16-bits samples with sequencer, preset rhythm patterns and trigger pads.

main
drum machine

info DRUM MACHINE Main panel features a 16 x 2 lines display (no backlight) , 2 knobs, 29 buttons and 15 trigger pads with no velocity but assignable to any Midi notes.

Back panel terminals connectors:
- main signal out
- Midi interface
- headphones
- 2 pedalswitch inputs for start-stop and FILL IN functions.


ac Power supply
external PSU 12V / 200 mA -)+ polarity.

 



edit TECH
the XR10 is a digital drum machine based on a 8-bits CPU NEC D78C10G part of Z80 Zilog processor which handles up to 8 voices polyphony.
The sound is generated by internal PCM samples stored in an internal ROM wavetable.



16 bits



edit
WAVETABLE the XR ROM contains 64 PCM samples recorded at 16 bits resolution.
Most of the samples are old school big drums, acoustic gated toms but also pretty nice electro percussions in a perfect Kraftwerk-like style.
Each samples can be also backward, pitch-tuned at 2 octaves range and finally located in the stereo L/R panning position.


xr10 pcm
SOUND LIST: bass drums (x10), snares (x10), rimshots (x2), hihats (x3), toms (x12), crash (x2), ride cymbal (x2), claps, finger snap, conga (x4), vibraslap, guiros (x2), cabasa, tambourine, triangle (x2), cowbell, claves, timbales (x2), agogo (x2) , slap bass and a FX ochestral hit





edit
INTERFACE all edit with single parameter with limited display:

akai xr10 tech

 


edit ENVELOPE each assigned sample have 1 single EG that features:
- 1 segment DECAY
- 1 time SUSTAIN (31 levels each).


decay2



edit
LFO section offers a single modulator SWEEP for the pitch (the famous "warped-simmons" effect) with some basic programming parameters such as:

- frequency rate
- depth modulation
- modulator polarity inversion.

LFO




edit
SEQUENCER note entries system works in 2 different modes:
A- realtime at 96 ppqn resolution
B- simple step entries.


recording xr10
The maximum global resolution is fixed to 1/96 and offers 8 different level of quantisation (or humanize) from 1/4 to 1/48 plus a classic array of traditional edit functions like copy, insert or repeats.
A basic pattern is programmed with 4 sub-levels (FILL-INS, INTRO, ENDING and BREAKS) that can be played back with dedicated function buttons.




edit MIDI sound kits can be triggered using Midi interface, however implementation is rather basic and offers only control on velocity sytem.
SYNC internal tempo range 40-296 BPM or XR can be slaved to external Midi clock, altough some sync issues have been reported (maybe depends on the OS?).



edit MEMORY:
- 300 notes per pattern
- 20 songs
- 450 presets patterns
- 50 styles with: 3 variations, 3 fill-ins + break +1 intro + 1 ending.
Created sequences and songs can be data dumped to Midi exclusives protocol.
TIP: One of most irritating function of the machine is the MEMORY PROTECT which is always turns back to ON when switching off the drum machine.





edit
MAINTENANCE 2 main isssues:
-most common issue are the pads: the graphite contact just goes dying after many pressures. Cleaning with alcohol or various stuff will do nothing and can worsen situation for sure, best solution is electro conductive solution (see PIC PADS REPAIR)
- Second common" issue" is the battery replacement, a standard soldered Cr2032 3V.

pad fix repair

memory
edit pads repair edit battery location for replacement


akai xr10 mainboard
(UPPER) Xr10 motherboard - click for bigger picture

 


edit
RELATED FAMILY:

akai xe8

XE-8 Rackmount percussion expander is similar but with a different soundset VIDEO

circuit bent

XR-10 circuit bent: like many cheap romplers, the XR is frequently modded with circuit bending process on the ROM wavetable - usually recommanded for people who enjoy glitch and weird digital noises VIDEO


 

demo AUDIO DEMO

demo super MIX : XR10 + Moog Little Phatty bass
demo demo with Sequential circuits Pro1
demo raw electro pattern
demo raw pattern drum
demo raw retro pattern



video VIDEO SELECTION

video 1 audio demo audio demo
video demo sounds demo circuit bent

Company: Akai
Model: XR-10
Class: Drum Machine
Pads: 15 non-dynamic
Display: 16 x 2 lines
Dates: 1990
Price: 100€
Synthesis: PCM rompler
N. Samples: 64 PCM
Sample Resolution: 16 bits
Polyphony: 8 voices
Sequencer: 20 songs
Rec resolution: 96 ppqn
SYNC: Midi
Envelope: 1 EG
LFO: 1 modulator
Memory: 50 styles
CPU: NEC D78C Z80
OS: latest V2.2
PSU: 12 VDC
Demo: 5

 

manual
MANUAL

 

 

edit

OS is burnt on EPROM, test version is 2.2

RESET/ FACTORY PROCEDURE Switch on pressing [1] + [2] button. Select.



rx5 circuit  bend
XR10 *Free* SAMPLES
DOWNLOAD

fre samples


manual
SERVICE MANUAL / SCHEMATICS

xr10 banner

xr10 warning
edit editXR10 warning

 


XR10 FOR SALE

Akai xr10 for sale
CHECK OUT EBAY OFFERS

 

 

xr10 banner

 

 

 

motherboard logo circuit
awardSPECIAL AWARDS:

solid
solid
OLDSCHOOL Nervous edit

comment

REVIEW "I do personally love that electro EBM industrial sounds character with not-so-common samples onboard. Give it a try"

manual manual
- some great samples - cheap built
- old school
- edit


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16 bits PCM DRUM MACHINE Akai XR-10
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