Kurzweil K2500R User manual

Specifications

K2500 FEATURES

13-1

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

Specifications

K2500 FEATURES

13-2

•

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

Specifications

Electrical Specifications

13-3

Environmental Speciﬁcations

Temperature ranges

For operation: minimum 41

F (5

maximum 104

F (40

For storage: minimum -13

F (-25

maximum 186

F (85

Relative humidity ranges (non-condensing)

Operation and storage: 5—95%

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.

* 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.

Specifications

MIDI Implementation Chart

13-4

MIDI Implementation Chart

Model: K2500

Manufacturer: Date: 3/21/95

Young Chang Version 1.0

Digital Synthesizers

Mode 1: Omni On, Poly Mode 2: Omni On, Mono O = yes

Mode 3: Omni Off, Poly Mode 4: Omni Off, Mono X =no

Function Transmitted Recognized Remarks

Basic Channel

Default 1 1 Memorized

Changed 1 - 16 1 - 16

Mode

Default Mode 3 Mode 3 Use Multi mode for multi-

timbral applications

Messages

Altered

Note Number

0 - 127 0-11 sets intonation

True Voice 0 - 127 0 - 127 Key

Velocity

Note ON O O

Note OFF O O

After Touch

Keys X O

Channels O O

Pitch Bender

O O

Control Change

O 0 - 31

32 - 63 (LSB)

64 - 127

O 0 - 31

32 - 63 (LSB)

64 - 127

Controller assignments

are programmable

Program Change

O 1 - 999 O 1 - 999 Standard and custom

formats

True # 0 - 127 0 - 127

System Exclusive

OO*

System Common

Song Pos. O O

Song Sel. O O

Tune X X

System Real Time

Clock O O

Messages O O

Aux Messages

Local Control O O

All Notes Off O O

Active Sense X X

Reset X X

Notes *Manufacturer’s ID = 07

Device ID: default = 0;

programmable 0 - 127

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