DPX-1

Oberheim DPX-1

Released: 1986

MSRP: $2695US

Synopsis:

Sample player for then-current third party formats. All programming was read from source format and non-editable. Rev 2.1 added S900, HDX-20 (external SCSI hard drive), CDS3 CDROM support, along with a back panel with a DB9 port (CDS3) and 8 individual outputs (with MIDI mono mode support). Rev2.2 added disk writing in native DPX format, transpose, and filter cut-off edit, along with various refinements. Architecture Class: Rompler.

Ebay Description:

The Oberheim DPX1 is a 2U rack (velocity and aftertouch sensitive), 8 voice polyphonic, (digital/analog hybrid) 12 bit sample player, resonant 24dB low pass filter (SSM2045), 100 presets, MIDI interface (SDS compatible), and 1MB (512kW) sample RAM. Dual (5.25" and 3.5") floppy disk drives are compatible with Emulator II, Mirage (non-MASOS), Prophet 2000, and Prophet 2002 disks.

Physical

Form Factor	Dimensions	Weight	Audio Input	Audio Output	Communication Port	Control Input	Control Output	Switch Input	Power
2U rack	W:18.97in (48.18cm) D:14in (35.56cm) H:3.47in (9.45cm)	18lbs (8.28kg)	no	mono	MIDI: IN OUT THRU	MIDI	MIDI	no	AC

Interface

Compatibility	Multitimbral Memory	Program Memory	External Storage	External Programming	UI Input	UI Output
EmulatorII Mirage:non-MASOS Prophet2000 Prophet2002 S900:Rev2.1	N/A	100	3.5" DSDD floppy drive 5.25" DSDD floppy drive MIDI SDS optional:SCSI	no	task based	LED display

Architecture

Multitimbral	Polyphony	Unison	Architecture
not editable	8 detune:4	no	Sample->VCF->VCA

Output

Effects	Pan Modulator	Volume Modulator	Headphone
no	no	not editable	no

Control

Arpeggiator	Arpeggiator External	Sequencer	Sequencer Memory	Sequencer External	Continuous	Program Change
no	N/A	no	N/A	N/A	MIDI	MIDI

Keyboard

Key Pressure	Chord Memory	External Control	External Sustain	Key Scaling	Velocity Curves
channel	no	MIDI	MIDI	1	1

Sample

Stereo	Sample Depth	Sample Rate	Sample RAM	Sample ROM	Sample Points	Sample Trigger	Sample Loop	Sample Edit
N/A	12 bit	variable	1MB (512k words)	no	not editable	no	not editable	no

Source

Name	Signal Class	Waveform	Octave Range	Amplitude Modulator	Harmonics Modulator	Pitch Modulator	Wave Assign Modulator
Sample	digital	not editable	not editable	not editable	not editable	not editable	no

Filter

Name	Signal Class	IC	Resonant	Shape	Frequency Modulator	Resonance Modulator	Shape Modulator
VCF	analog	SSM2045	yes	24dB low pass	not editable	no	no

Rompler Models

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