■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 and 12
parameters.
■ Back panel terminals connectors:
- main signal out
- Midi interface
- headphones
- 2 pedalswitch inputs for start-stop and FILL IN functions.
- Power supply external PSU 12V / 200 mA -)+ polarity.
■Sounds: PCM 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 electro
percussions in a perfect Kraftwerk-like style.
■Sequencer: The maximum global resolution is fixed to 1/96
and offers 8 different level of quantization (or humanize)
from 1/4 to 1/48 plus a classic array of traditional edit
functions like copy, insert or repeats. Created sequences
and songs can be data dumped to Midi exclusives
protocol.
Note entries system works in 2 different modes:
A- realtime at 96 ppqn resolution
B- simple step entries.
■SYNC internal tempo range 40-296 BPM or XR can be slaved to
external Midi clock, although some sync issues have been
reported (maybe depends on the OS?).
■ INTERFACE All edit with single parameter with limited
display. 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 - no to mention the lack of
backlit display.
■ LFO section offers a single modulator SWEEP for the pitch
with following controls:
- frequency rate
- depth modulation
- polarity inversion.
■ ENVELOPE each assigned sample have 1 single EG that
features:
- 1 segment DECAY
- 1 time SUSTAIN (31 levels
each)