A4000

Yamaha A4000

Released: 1999

MSRP: Y149,000

Synopsis:

A3000V2 with 2x sample RAM, improved convertors (20/24 bit A/D/A), and added preset/sample compatibility. Architecture Class: Sampler.

Ebay Description:

The Yamaha A4000 is a (velocity and aftertouch) sensitive 2U rack (64 voice multitimbral) 16 bit sampler, featuring stereo|mono sampling (5.5125|11.025|22.05|44.1kHz), multimode (notch or low, high, or band pass) filter, dedicated (pitch, filter, and amp) 3 stage EGs, dual LFOs (saw, square, triangle, random waveforms), 3 effects processors, 3-band EQ, stereo sample inputs, dual stereo outputs, DSHD floppy drive, SCSI (internal and exetrnal HD support), MIDI, extensive sample import capabilities, and 128 presets. Sample editing includes loop crossfade, normalize, time-stretch, pitch-conversion, reverse, trim, and fade.

Physical

Form Factor	Dimensions	Weight	Audio Input	Audio Output	Communication Port	Control Input	Control Output	Switch Input	Power
2U rack	W:480mm(18.875in) D:461mm(18.125in) H:90mm(3.5in)	8kg(17.625lbs)	sample:stereo	stereo:2 optional:S/PDIF(RCA/optical AIEB1) optional:stereo:3(AIEB1)	MIDI	MIDI	MIDI	no	AC

Interface

Compatibility	Multitimbral Memory	Program Memory	External Storage	External Programming	UI Input	UI Output
A3000 A3000V2 A4000 A5000 EX5 EX5R EX7 import: TX16W SU700 WAV AIFF EIIIX S1000 S3000 S760	no	128	disk:DSHD(3.5") SCSI (partion-size:1GB partitions:8)	MIDI	mode based buttons	LCD display

Architecture

Multitimbral	Polyphony	Unison	Architecture
16	64	no	Sample->DCF->DCA

Output

Effects	Pan Modulator	Volume Modulator	Headphone
processors:3 (presets:54) EQ:4-band	aftertouch MIDI-CC MIDI-PitchBend ProgLFO velocity	AEG LFO MIDI-CC7 velocity aftertouch key ProgLFO MIDI-CC MIDI-PitchBend	yes

Control

Arpeggiator	Arpeggiator External	Sequencer	Sequencer Memory	Sequencer External	Continuous	Program Change
no	N/A	single track (SMF compatible)	sample RAM?	no	MIDI-CC5 MIDI-CC7 MIDI-CC10 MIDI-CC0-120	no

Keyboard

Key Pressure	Chord Memory	External Control	External Sustain	Key Scaling	Velocity Curves
channel	yes	MIDI:IN/OUT/THRU	MIDI	yes	1

Sample

Stereo	Sample Depth	Sample Rate	Sample RAM	Sample ROM	Sample Points	Sample Trigger	Sample Loop	Sample Edit
yes	16 bit	5.5125\|11.025\|22.05\|44.1kHz	4MB (max:128MB via 72 pin 70ns SIMM)	no	memory-limited	audio	crossfade	normalize time-stretch pitch-conversion fade reverse trim mono

Source

Name	Signal Class	Waveform	Octave Range	Amplitude Modulator	Harmonics Modulator	Pitch Modulator	Wave Assign Modulator
Sample	digital	sample	-	no	no	LFO PEG aftertouch key ProgLFO MIDI-CC MIDI-PitchBend velocity	no

Filter

Name	Signal Class	IC	Resonant	Shape	Frequency Modulator	Resonance Modulator	Shape Modulator
DSP	digital	?	yes	low or high band pass or notch (types:16)	key FEG LFO velocity aftertouch key ProgLFO MIDI-CC MIDI-PitchBend	velocity	no

Envelope

Name	Level	Rate	Loop	Polarity	Trigger	Level Modulator	Rate Modulator
AEG	sustain	attack decay release	no	no	key	no	key velocity aftertouch key ProgLFO MIDI-CC MIDI-PitchBend
FEG	initial attack sustain release	attack decay release	no	no	key	velocity aftertouch key ProgLFO MIDI-CC MIDI-PitchBend	key velocity aftertouch key ProgLFO MIDI-CC MIDI-PitchBend
PEG	initial attack sustain release	attack decay release	no	no	key	velocity	key velocity aftertouch key ProgLFO MIDI-CC MIDI-PitchBend

LFO

Name	Waveform	Delay	Polarity	Sync	Delay Modulator	Level Modulator	Rate Modulator
LFO	saw square triangle random	yes	invert	key	aftertouch key ProgLFO MIDI-CC MIDI-PitchBend velocity	aftertouch key ProgLFO MIDI-CC MIDI-PitchBend velocity	aftertouch key ProgLFO MIDI-CC MIDI-PitchBend velocity
ProgLFO	saw square triangle random	yes	invert	key MIDI	no	aftertouch key ProgLFO MIDI-CC MIDI-PitchBend velocity	no

Sampler Models

Synth Museum

"Synthesizer preservation via research and education."