Page 1
Specifications
K2500 FEATURES
Chapter 13
Specifications
K2500 FEATURES
•
240 x 64-pixel backlit fluorescent graphic display with adjustable contrast
•
3.5-inch floppy disk drive, for DD or HD disks, DOS compatible
•
MIDI In, Thru, and Out with selectable second MIDI Out
•
MIDI LED to indicate MIDI activity
•
48-note polyphony with dynamic voice allocation
•
Multi-timbral, for multi-track sequencing and recording
•
199 factory preset programs, and 100 factory preset setups
•
Up to 3 layers per program, up to 32 layers for programs on drum channels
•
Receives mono (channel) pressure and poly (key) pressure
•
8-zone setups transmit on8 MIDI channels with independent programmable controls
•
Fully featured onboard sequencer for recording from keyboard or via MIDI; loads and
plays MIDI Type 0 sequences
•
Easy-to-use programming interface including soft buttons, Alpha Wheel, and
alphanumeric pad
•
8 Megabytes of 16-bit sample ROM, including acoustic instrumental sounds, waveforms,
and noise
•
20 KHz maximum bandwidth
•
Optional stereo sampler with analog and digital inputs
•
AES/EBU I/Os and optical I/O
•
Sound ROM expandable to a total of 28 Megabytes
•
8 SIMM sockets for optional sample RAM—up to 128 Megabytes
•
Stereo sample playback capability
•
Akai® S1000 sample disk compatibility
•
Two 1/4-inch mixed audio outputs (stereo pair)
•
Eight 1/4-inch audio outputs programmable as four stereo pairs or as eight separate
outputs, with insert capability for effects patching
•
Stereo headphone jack
•
Optional effects board with direct digital out and digital stereo insert
•
240K battery-backed RAM for user programs, setups and other objects, expandable to
1256K
•
Two SCSI ports for connection with external SCSI disks, CD-ROM drives, or Macintosh®
personal computers
•
Optional internal hard disk
•
Optional 8 channel interface to AES, ADAT, DA-88
•
Realtime DSP for each voice: 31 programmable DSP algorithms incorporating filters, EQ,
distortion, panning, pulse width modulation, and more; up to 3 programmable DSP
functions per voice
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Page 2
Specifications
K2500 FEATURES
•
Filters: Lowpass, Highpass, Allpass, Bandpass, Notch, programmable resonance
•
Programmable stereo multi-effects on MIX outputs, including simultaneous reverb,
chorus, delay, flanging, EQ—and more
•
Realtime internal and MIDI control of effects parameters
•
MIDI standard sample dump/load capability
•
SMDI sample dump/load capability
•
System Exclusive implementation
•
MIDIScope™ for analyzing MIDI events
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Page 3
Environmental Specifications
Temperature ranges
For operation: minimum 41
maximum 104
For storage: minimum -13
maximum 186
Relative humidity ranges (non-condensing)
Operation and storage: 5—95%
°
F (5
°
°
°
F (40
F (85
°
C)
F (-25
°
°
C)
°
C)
C)
Physical Specifications
Overall dimensions K2500R K2500 K2500X
Width 16.9 in.* 43 cm. 47.8 in. 121.4 cm. 54.3 in. 137.9 cm.
Depth 13.9 in. 35.4 cm. 17.8 in. 45.1 cm. 17.8 in. 45.1 cm.
Height 5.1 in. 13 cm. 4.8 in. 12.2 cm. 4.8 in. 12.2 cm.
Weight: 24.65 lb. 11.2 kg. 55.5 lb. 25.2 kg. 72 lb. 32.7 kg.
Specifications
Electrical Specifications
* Excluding the rack-mount brackets
Electrical Specifications
AC supply: selectable; 100V, 120V, 220V, or 240V. 1.0 amps at 120 volts nominal
Safe voltage ranges
Voltage setting: 100V 120V 220V 240V
Safe voltage range: 85—107 95—125 180—232 190—250
Safe frequency range: 48—65 48—65 48—65 48—65
If the voltage drops below the minimum safe level at any voltage setting, the K2500 will reset,
but no data will be lost. If the voltage exceeds the maximum safe level, the K2500 may overheat.
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Page 4
Specifications
MIDI Implementation Chart
MIDI Implementation Chart
Model: K2500
Manufacturer: Date: 3/21/95
Young Chang Version 1.0
Digital Synthesizers
Function
Basic Channel
Mode
Note Number
Velocity
After Touch
Pitch Bender
Control Change
Program Change
System Exclusive
System Common
System Real Time
Aux Messages
Notes *Manufacturer’s ID = 07
Device ID: default = 0;
Default
Changed 1 - 16 1 - 16
Default Mode 3 Mode 3 Use Multi mode for multi-
Messages
Altered
True Voice 0 - 127 0 - 127 Key
Note ON
Note OFF O O
Keys
Channels O O
True # 0 - 127 0 - 127
Song Pos. O O
Song Sel. O O
Tune X X
Clock
Messages O O
Local Control
All Notes Off O O
Active Sense X X
Reset X X
Transmitted Recognized Remarks
O 0 - 31
32 - 63 (LSB)
64 - 127
O 1 - 999
programmable 0 - 127
1 1 Memorized
timbral applications
0 - 127
O O
X O
O O
O 0 - 31
32 - 63 (LSB)
64 - 127
O 1 - 999 Standard and custom
O
O O
O O
0-11 sets intonation
Controller assignments
are programmable
formats
O*
Mode 1: Omni On, Poly Mode 2: Omni On, Mono O = yes
Mode 3: Omni Off, Poly Mode 4: Omni Off, Mono X =no
13-4
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