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Sequential Circuits Drumtraks

 

 

drumtraks sequential circuits inc

info Country: USA
Weight: n/a
Dimensions: n/a
audio demo trend price : 500€
manual demo video sample comments

 

Sequential Circuits Drumtraks 400
Digital Drum Machine (1983)


Programmable drum machines based on PCM samples with early Midi control features.

main
tech drumtraks

info DRUM MACHINE Main panel features a segment display, 13 dynamic trigger pads, 9 buttons and numeric pad.


Back panel terminal connectors:
- main signal out
- 6 aux analog out
- clock out
- metronome out (it generates +5V pulses)
- tape interface
- Midi interface.



 

edit VOICES main core 8 bits NEC D780C-1 CPU part of Z80 ZILOG family manages 6 channels polyphony, each channel features 2 main settings:

cpu sequential - individual volume gain
- pitch tune quantised into 15 different steps.

TECH: TOM channels are filtered by famous chip Curtis CEM3320 (static) demo HEAR

 



editWAVETABLE
the drumulator contains 13 PCM waveforms coded at 8 bits resolution stored on socket EPROMS (Erasable Programmable Read Only Memories). The shortest factory sound uses 2732 EPROM type (32 kb) while longest sounds like crash cymbal gets 4 X 2764 EPROM (64 kb) - It is possible to change the soundset by swapping the eproms. Finally the OS EPROM located on top left is also a 2674.

eprom

Sounds are: bass drum, snare, rimshot, tom (x2), crash cymbal + ride, open/ closed hihat, handclaps, tambourine, cabasa and cowbell.

demo HEAR all PCM

demo HEAR alternative eprom PCM


 

edit INTERFACE: the Drumtraks is quite easy to use with big buttons and knobs, all parameters are written on the front panel.

drumtraks



pot SEQUENCER record in real-time mode or step mode.
Recording quantisation at variable resolution levels from 1/2 to 1/96 in 10 values: 1/2, 1/4, 1/6, 1/8, 1/12, 1/ 16, 1/24, 1/32, 1/48, 1/96 or swing shuffle.

drumtraks

SYNC internal frequency tempo range from 40 to 250 BPM, sync mode available in 2 ways:
- external Midi clock
- analog sync IN at 24 /48 /96 PPQ resolution, but it outputs only at 24 / 48 PPQ

demo HEAR sequence




editMIDI each sound is triggered with velocity levels and pads output MIDI with dynamic.
TIP: To change Midi channel number hold ENTER and 0 and select channel 1-16 with INC/DEC

record

 


edit MEMORY
:
- 3289 notes
- 99 patterns (100 measure)
- 99 songs.
Data can be saved either to Midi exclusive dump or tape backup .

cat on synth

- LEFT -battery replacement is a BR2-3 3V battery

 

- click to enlarge-


 

edit EDIT the original brochure mentions a dedicated software developed for Commodore 64 model 910 for edit on both drumtraks and six-track synth.

commodore 64 midi interface model 910



edit RELATED FAMILY:

Sequential circtuits TOM

Sequential circtuits TOM the successor with different sounds and more edit functions VIDEO

 

 

effet VST PLUGIN / SAMPLED VERSION there are some free and commercial samples set:

Waveshapper

-logic-cafe

-machines hyperreal

free
sample packs
n/a


 

demo AUDIO DEMO

demo pattern edit
demo smalltown with synthesizer Elka Synthex
demo other eproms
demo Have some nice drumtraks demo you want to share ? uh? upload'em :)


 

video VIDEO SELECTION

sequential Circuits Drumtraks + Minibrute Sequential Drumtraks 400 Drumtraks Fun
with Arturia Minibrute demo demo2



Company:Sequential Circuits
Model: Drumtraks
Class
: Drum Machine
Drum Machine: 13 pads
Synthesis: PCM rompler
S.Resolution: 8 bits
Polyphony: 6 voices
Sound: 14 PCM
Sequencer: 3289 notes
Shuffle swing: yes
Sync: analog + midi clock
Effect: none
CPU: Z80
Demo: 3

manual
MANUAL

manual
SERVICE MANUAL

manual
EPROM DUMP


original scan
editoriginal brochure

 

original scan
editoriginal brochure

 

original scan
editoriginal brochure

 

original scan
editoriginal brochure

 

original scan
editeditoriginal brochure

 

Sequential Circuits Drumtraks for sale

Sequential Circuits Drumtraks
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d780c1

peace symbol
"may peace prevail on earth"-

drumtraks designers

cem 3320

awardSPECIAL AWARDS:

solid solid
old school classic outdated

comment

REVIEW"Between early and classic Oldschool drumbox - FUN programming !"

manual manual
-Midi -outdated sounds
-sequence
 
   

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