oberheim dpx-1 verzamelthread

[R-ond]

oberheim dpx -1
tis een digital sample player
plays de ensonigue / prophet 2002 / emulator 2 disks ,...en met 2.2 upgrade ook de s900 disks
kweet er niet soo veel van nog maar machiine zit vool met ssm chips en hij klinkt eg sterk stevig
is niet met bv een drumstation te vergelijken ,..t habngt tuurlijk van de samples af .!

ik wil hier van alles verzamelen en anderen aan...uh moedigen ook wat info/sound banks whatever te dumpen ,..
ik heb bv geen manual wel papieren mbt de 2.2 upgrade ,...
daarover later meer
ik heb een dpx-1 met de output uit breiding [erg zeldzaaam schijnt]
met special bus voor een nog specialere 20mb disk er aan te hangen ,..gaat nooit lukken zie ik nu al of wel ,...?.......ideen
di t is de mijne

ben wel benieuwd naar ervaringen van anderen hoe hunkm vonden
ofter nog wat met de filters te doen is ,.../
zou leuk zijn ,..of moet dat in de sampler zelf afgeregeld worden ,..?
zie vragen genoeg

tis iig een cheapass rocking 12 bitter met analoge filters ,...

 

[R-ond]

txt cuba 7000 de oude eig ....van 2x dpx thnx mann
Oberheim DPX-1
Oberheim dpx-1 sample player van s900 prophet200(2) en ensoniq mirage en de emulator 2.. heeft dezelfde ssm filters aan boord en klint ook dik, zitten floppies bij zowel drums als sounds mischien een leuk alternatief voor emu sp1200 sp12 aangezien die gebaseerd zijn op de Emulator 2 en de dpx1 ook weer,ik heb ze nooit naast elkaar gehoord..
- op allebei zitten de 8 oupout exp en laatste OS !!!, als je BV een pgm in je s900 hebt met meerder outpouts leest hij die gewoon & leest geen s950
niet helenaal maar toch mischien wel... een sp1200 in een rack...moet niet gekker worden

 

[R-ond]

emulator achive

*some info
The First Sample Player In December 1986 Oberheim launched the world's first digital sample player - the DPX-1. This 2U rack module could replay the sampled sounds from disks originally recorded on the Emulator II, Sequential Prophet 2000/2002, Ensoniq Mirage, and the Akai S900

Specifications The DPX-1 is eight voice polyphonic, with MIDI and optional SCSI. With a 1 MB memory, all data is converted into a 12 bit linear format for replaying. These provides 512k samples. One Bank of EII samples can be loaded at a time, all 100 presets can be accessed via a 2 character red LED display. Both 3.5" and 5.25" floppy diskette drives are in built. more »

MIDI SDS The DPX-1 is the only other device that can read the unique special Emulator II format diskettes, and its also supports MIDI Sample Dump Standard (SDS). Which means you can get your EII sounds into other samplers !

You can format a 3.5" diskette, and save your EII 12-bit sounds onto a new reliable diskette. If you are an EII user who wants to continue using your ace samples into the 21st century, this is THE puppy to get ! They are even dead cheap to buy.

Sample Replay The Oberheim DPX1 reproduces sampled audio data read from 3.5" or 5.25" floppy diskettes or received from MIDI via Sample Dump Standard. All sample data is converted to 12-bit linear data format. The DPX-1 will accept disk data from:

Emulator II
Prophet 2000/2002/2002+
Mirage rack and keyboard
Akai S900
Front Panel The DPX1 has both 3.5" DS/HD and 5.25" DS/DD floppy drives, which should have their cardboard templates inserted when the DPX1 is being transported. There are a small number of front panels keys:

LOAD DISK
DECREMENT
ENTER
INCREMENT
FUNCTION SELECT KEY
There are 2 LED's to show when the disk is busy and when the disk encounters an error. There are 6 function indicator LED's to show which function is selected. There is a 2 character red LED for displaying information, and a volume slider. The power switch is on the back, how inconvenient can you get !

MIDI The DPX-1 has the usual MIDI IN, OUT and THRU.Basic channel select for transmit and receive, modes 1, 3 and 4 (Prophet 2000 only) is supported. Controllers on/off, patch change commands on/off, controllers supported as defined by the sample disk being replayed. MIDI sample dump standard is supported.

Audio The DPX-1 has a single unbalanced audio output. Although the optional CDROM interface adds another 8 mono outs. All on 1/4" jacks

Analog Synthesizer Inside The DPX-1 runs with a VCF/VCA/LFO analog architecture. The parameters for these are read directly from the sample disk. Only the filter cutoff can be modified manually, initailly just wide open or as per the sample disk. But in release 2.0 you can vary the cut off from 0 - 99 from the front panel.

Missed Again The DPX-1 is the only other device that can read the unique EII diskette format. However the DPX-1 was not a great success, as is the case with every other replay sampler that has been manufactured. Users prefer to be able to sample as well, and replay samplers are not much cheaper or simpler to build than fully fledged samplers. By the time the DPX-1 was out, sampling had moved on from the 1984 EII. Akai were making their mark with the new 12-bit S900, and then 16-bit S1000 rack mount samplers. E-mu Systems had released the awesome 16-bit EIII, and put an EII on a chip with the Emax. The DPX-1 was a great idea that sold to pro musicians who wanted to tour their EII's.

A Rack Mount EII The DPX-1 offers the Emulator II user a smaller and more reliable rack mount version - highly attractive! It uses the same analog SSM filters, so it sounds brilliant. It can even be found with an external SCSI connector. The DPX-1 converts the Emulator II 8-bit samples into 12-bit, after it has loaded the diskette and before you can play the samples. This takes a few seconds (lots of time for a bird run !). You can now play the samples as you would on your EII, but there's more !
click to enlarge image
Product Spec
* 12-bit Sample Replayer
* Mono, 8 voices
* Plays Mirage, EII, S900
Prophet 2002 samples
* 2U rack version
* Low Pass Analog Filters
* 1MB sample RAM
* 5.25" and 3.5" Diskette
* Optional 20MB Hard Drive
* Optional CDROM Drive


Models
* DPX-1
* DPX-1 + CDROM interface
* DPX-1 + SCSI interface
Upgrades
* CDROM interface and
eight analog outs
* HDX-20 38 MB Hard Drive
in a 2U rack $1799

* Launched December 1986
* Withdrawn 1988?
* 2000+? manufactured
* HDX-20 is rare, few built
Manuals
* DPX-1 OS2.2 Supplement
* Keyboard Magazine
Review July 1987
CDROM
Oberheim sold a CDROM interface (9 pin RS422) for the DPX-1 which enabled the OMI CDS3 CDROM system to be connected. It also provided 8 individual voice mono outputs on 1/4" jacks.
Hard Disk
In 1988 Oberheim launched the HDX-20 Rack Hard Disk Unit as a 2U rack. Inside was a 38 MB Seagate hard drive which hooked up via SCSI and enabled 19 sample banks to be stored.
OS Versions (ROM)
Latest OS Version
* OS 2.2 added support for:
CDS3 CDROM/RS422
Individual outputs
Older Versions
* OS 2.1 added:
S900 disk read
Support for HDX-20/SCSI
* OS 2.0 added: filter cutoff
variable from 00-99
* OS 1.5 added:
Backup to 3.5" floppy
MIDI echo on MIDI OUT
MIDI Sample Dump
* OS 1.4
* OS 1.3
* OS 1.0
Dimensions
* 2U Rack Unit
* Weight 18lbs/8kg
* Width 19"
* Depth 14"
* Height 3.7"
* Power: 115/230v 50/60Hz
Prices
US prices new
* DPX-1 $2,695
Secondhand
* DPX-1 $50 - $100
* HDX-20 very rare $100

 

[R-ond]

ssm chips

ssm chips

http://www.emulatorarchive.com/Samplers/samplers.html

iets over emu en ssm

Classic Samplers The early Emulators have now become classic vintage samplers, even though they are far outclassed by the latest hardware. The reason for this is the unique sounds they produce from 8 or 12 bit sampling, some times poor anti-aliasing, and their use of warm analog SSM filters. The sample loops are sometimes rather lumpy, and the noise levels are hardly pristine, but these samplers remain excellent sources of unique sounds and magic.

Right now these early monsters can be bought for next to nothing, often 10 times less than they retailed for.

Secondly the use of custom DSP chips to create digital filters, effects, and smooth sample replay and transposition. E-mu Systems had already pioneered analog synthesizer chip design with the SSM oscillator and filter chips of the late 1970's. During the 1980's and 1990's they created a range of proprietary custom digital chips from E to R. This technology undoubtedly gives Emulators there unique high quality sound.

A Rack Mount EII The DPX-1 offers the Emulator II user a smaller and more reliable rack mount version - highly attractive! It uses the same analog SSM filters, so it sounds brilliant.

lots a info ,...dpx emulator archive
http://www.emulatorarchive.com/SiteSearch/sitesearch.html

http://www.emulatorarchive.com/Synthesizers/AudityOverview/audityoverview.html
iets over denk ik een van de mooiste en grootse analoge ssm synths ooit de audity
lees en huivert helaas nooit in productie gegaan [ daag memorymoog...!]
fatt analog poly microprocessor controlled

moet toch ook wer kunnen l,...anno 200byna7

 

[R-ond]

Oberheim DPX-1 : Operating Instructions

Overview The Oberheim DPX-1 has a very simple operating system which is controlled by the 5 front panel buttons.

Disk Loading Place the diskette you wish to load into either the 3.5" or 5.25" drive. The DPX1 will always load from the 3,5" drive first (if there is a diskette in it!). Now press the LOAD DISK button once. The DPX1 will now load the samples, and the BUSY LED will light up. The 2 character LED display will quickly show the host sampler and display:

E2 = Emulator II
A9 = Akai 900
P2 = Prophet 2000, 2002/2002+
En = Ensoniq Mirage
Cd = CDROM
UF = Sample Dump
Once the sample has loaded it will be ready to play, unless it is 8-bit sample - in which case the DPX1 will process it into a 12-bit sample. This conversion takes the Motorola 68000 microprocessor about 30 seconds (the BUSY LED will remain lit until the processing is complete). The DPX1 will then provide Bank 0 as the active sound set.

Function Select Six options can be sequentially selected by using the function select button.

Patch Select Select this option with the function select button, and then select the bank you wish to use (00 - 99) with the INCREMENT/ DECREMENT buttons, followed by ENTER. There will be a decimal place next to the bank number if it is not the current bank.

MIDI Channel Select this option with the function select button. The current MIDI channel will be displayed (1-16, On for omni). You can change the setting by using the INCREMENT/DECREMENT buttons, followed by ENTER. You will need to save this setting to disk, as MIDI channel is disk specific and it is not stored as a generic parameter within the DPX1. The BUSY LED will light when the DPX1 receives MIDI information (e.g. notes).

Display The 2 character LED displays the following messages:

Ld = Loading Diskette
nd = No Disk
on = Selected Paramter is Enbaled or Omni
off = Selected parameter is disabled
bd = Blank Disk
nb = Not Blank Disk
nF = No Format
Pd = Protected Disk
bS = Bad Sample
dE = Disk Error
SE = MIDI Sample Error
iE = Internal Error
2.2 = operating system version number MIDI information (e.g. notes).
Fine Tune Select this option with the function select button. The DPX-1 can have its tuning adjusted. There are six options which are selected by the INCREMENT/DECREMENT keys followed by the ENTER key:

pi = Oscillator Pitch
Fi = Filter cut-off adjustment
tn = Transpose Note 2.2 feature only
tr = Transpose Range 2.2 feature only
tS = Transpose Sample 2.2 feature only
Each tuning control can be adjusted from 00-99 (50 is the mid point and default) using the INCREMENT/DECREMENT keys, remembering to press ENTER to save the adjustment to disk.

Data Dump Select this option with the function select button. The DPX1 can dump its sample memory to a 3.5" diskette or over MIDI. There are three options which are selected by the INCREMENT/DECREMENT keys, followed by the ENTER key:

dd = Data Dump - save memory to diskette
SP = Save Parameters - Press ENTER to write current configuration parameters to a backup disk containing sample data
Sd = MIDI sample dump receive/transmit
AL = All ememory ready for MIDI sample dumping
MIDI Controller Select this option with the function select button. There are two options which are selected by the INCREMENT/
DECREMENT keys, followed by the ENTER key:

CE = midi controller enable - the DPX1 will respond to midi controllers such as pitch bend, vibrato, volume, sustain and pressure
EC = midi echo - combines information generated by the DPX1 (i.e. patch change) and the data received from midi in and sends it via the OUT port
Extended Function Select this option with the function select button. There are three options which can be selected by the INCREMENT/DECREMENT keys, followed by the ENTER key:

Fd = formats and verifies a DS/DD 3.5" diskette
Filter Limit = enables/disables filter tracking
Ld = load diskette
do = dual oscillator mode (for the Mirage only)
2.2 = operating system version number
OS Version 2.1 and 2.2 will format DS/HDDiskettes, very useful.

 

[R-ond]

Oberheim DPX-1 : Technical Description

Architecture The Oberheim DPX-1 is an 8 voice polyphonic digital sample player, which uses a Motorola 68000 microprocessor to reproduce 8 and 12 bit digital samples. The DPX-1 is entirely controlled by computer software which is loaded from internal EPROM at boot time. The DPX-1 uses quite a collection of TTL logic in addition to the usual analog output channels. There are two rather neat and well laid out circuit boards, sitting on top of each other. The lower board has eight voice channels, and the upper board has the memory chips and microprocessor.

Sample Memory There is 1MB of internal sample memory on the upper circuit board (although we can only find 24 x 32k bytes = 768k bytes on ours, which equates to 512k 12-bit words). The memory can not be expanded.

Disk Drives There are two internal TEAC disk drives fitted to the DPX-1 on the left hand side, one DS/DD 3.5" and the other DS/DD 5.25". They are controlled by a standard WD1770 controller chip, and they are daisy chained together. Being TEAC drives means there are still available in the reconditioned market, the model numbers are:

the 3.5" is FD135 FN50-U
the 5.25" is FD55 FR550-U
OS Releases The DPX-1 loads its operating software straight from EPROM, ignoring the native OS on the diskette it is reading. The latest version we know of is 2.2.

Digital Sample Replay The DPX1 plays samples in 12-bit linear format, converting 8-bit samples to 12-bit where necessary. The DPX-1 can replay samples from the following samplers:
Emulator II
Prophet 2000/2002/2002
Mirage DSK9/DMS8
Akai S900
Analog Filters The DPX1 has analog filters ! The usual SSM2045 is once again pressed into use for each of the eight voices. They sound very pleasant - although the bass drops off when they are driven into high resonance values.

That Sound The EII has a distinctive quality sound, which belies the use of 8 bit sampling. The DPX-1 makes a very good emulation of an Emulator II ! The warm analog filters and the grit of the low sample resolution still stand out, although the loop points seem a bit more obvious.

Long Term Survival The DPX-1 is well engineered at a physical and circuit board level, with high quality components. It gets around two of the weak points in the EII (the fading LCD, and the difficult to replace diskette drives). It does still uses unique chips which are hard to source (like the SSM filters and latches, and the PAL chips), but these are less likely to fail than the hardware and PSU. The ability to copy EII sounds to 3.5" diskette, makes this a long term platform for playing EII samples.

 

[R-ond]

berheim DPX1 : Upgrades & Add Ons

Factory Upgrades The Oberheim factory has long since disappeared, and there are no upgrades or spares for the DPX-1 except second hand. There were two factory upgrades, with two vacant slots in the back of the standard DPX-1.

8 Outs and RS422 The DPX-1 could be upgraded with eight individual voice outputs on jacks, and a 9 pin RS422 connector. The RS422 enables the OMI CDROM drive (CDS3) to be connected so that EII CDROM's from OMI can be read. The OMI drives were Sony CD mechanisms with an RS422 interface. They were the first CDROM drives for use with a sampler. The OMI sample disks are very high quality. See the EII section for more info. more »

SCSI A SCSI interface card could be fitted which enabled the DPX1 to link up to the Oberheim HDX-20 Hard Disk Unit (2U Rack). The individual output upgrade is a pre-requisite to the SCSI upgrade. The DPX-1 does not work with ZIP drives.

Memory The sample memory can not be upgraded.

HDX-20 Music Storage System Oberheim produced an add on hard disk unit, the HDX-20, in a separate 2U rack unit. The unit came with a SCSI interface board for fitting into the DPX-1, a 25-pin SCSI cable, upgrade instructions, a 128 Kbytes memory upgrade for the DPX-1, OS Version 2.2 on two EPROM's, and the actual HDX-20 (which formats to 20 MB). The drive holds a total of 19 sample banks. The Output Expansion upgrade MUST be fitted in the DPX-1, for the SCSI upgrade to be able to be installed. It contains the necessary SCSI external connector and an interface chip.

Technical The HDX-20 contains a 5.25" Seagate ST238R
38 MB hard drive, which spins at 3600 rpm, and has an average seek time of 65ms. The drive has an ST412 interface not SCSI. A separate SCSI interface board sits alongside the drive in the 2U case. The drive formats at 20 MB. This appears to be the maximum space a DPX-1 can format and access.

Multiple Drives The SCSI DPX-1 can support up to 7 external SCSI devices, although the manual recommends only two devices are connected due to the need to keep SCSI cable lengths to a minimum. An HDX-20 can be shared by two DPX-1's, and a DPX-1 can access mutiple HDX-20's. There are two 25-pin SCSI connectors on the back of the case.

Preloaded The HDX-20 came preloaded with 19 banks of samples.

 

[cuba7000]

....graag gedaan ....ik ben dat jij blij bent met je dpx1 het is 100%... dikke drums,ging bij mij alleen maar weg omdat gewoon simpel alleen met een mpc60 wil kloten
zoiets van ff ..less is more...

 

[R-ond]

mirage gescoord ,..soo sampling wordt mogelijk
eens een flinke library aanleggen ,..
iemand linkie naar mirage samples
op ebay kunje idd setje org. nog kopen waren toen 19.-$
sommige setjes kosten nu nog 120$ voor 20
heb je wel wat
[mirage past in mn dpx-1]
blij blijerst

 

[R-ond]

dpx disk zeldzaam

dpx disk zeldzaam

dpx disk

http://cgi.ebay.com/OBERHEIM-HDX-20...ameZWDVWQQrdZ1QQcmdZViewItem#ebayphotohosting

nicey store 20 mb prop er twe dpx en aan en instant drumachine geweld
wel 13 pound en 5 days wat zout kosten shipping ,..20eu ...?

 

[cuba7000]

zou gewoon lekker met floppy,s werken... met de mirage kan je samplen super simpel en snel....sneller dan dat je programmed floppy,s koopt op het web

 

[R-ond]

OBERHEIM HDX-20 HARD DISK FOR DPX-1 (RARE)



Circa 1987 (?) Listed for $1,800.00

S/N X80903

It has been well taken care of in a smoke and pet free home studio.

Front face is in mint condition and there are minor normal rack mount scratches.



This is the rare and hard to come by optional 20MB hard disk for the well-known Oberheim Sample Playback DPX-1 unit.



It has the latest interfacing support for software revision 2.1 on the DPX-1.



The SCSI based HDX-20 can store up to 20 MB of data compared to 800K on a standard 3.5” floppy. Supports up to 19 banks of sounds

Supports samples from Emulator II, Prophet 2000, Mirage, or S900 formats..



5 Second load time (instead of 25 seconds with a floppy load) even faster in Oberheim format samples.



Rack mount and shock mount design.

There are two SCSI female connectors.



Multiple DPX-1’s and HDX-20’s can be used together in any combination up to 8 units.

2 Space rugged construction.

wheigs ; 13 pounds



I have a bunch of literature including original product brochure, software addendum notes, and various trade magazine articles. It also come with the original SCSI cable.



I cannot guarantee it works because my studio is no longer set up.

It must be sold as is.

Thanks for looking!
http://cgi.ebay.nl/ws/eBayISAPI.dll?ViewItem&item=300061772014&sspagename=ADME:RTQ:NL:1

toch vindt t wel erg intressantie,..voegt iets aan waarde toe ,../ sneller laden lijkt me samen een erg leuk setje
maar wat onderaan staat is toch soort of riskey
is sold as si...?
zn studio isnt working ,..voort zelfde geld heb je een kat ...uhh in de zak

tsja

 

[Luxman]

Terug in 1995/6 heb ik ooit op het punt gestaan er 1 te kopen bij Rock Palace Den Haag, de toenmalige verkoper nam werkelijk de tijd het ding aan mij te demonstreren. Ik heb het uiteindelijk niet gekocht.

 

[R-ond]

Origineel geplaatst door René
Terug in 1995/6 heb ik ooit op het punt gestaan er 1 te kopen bij Rock Palace Den Haag, de toenmalige verkoper nam werkelijk de tijd het ding aan mij te demonstreren. Ik heb het uiteindelijk niet gekocht.

asje de verkoop adverts [emulator archives] leest was dat de enige manier om niet je zware emu bak mee te hoeven nemen ,..toeren ,..playen ,...maar een sample playert te hebben ,..die verdomd t zelfde klinkt
"speciale" disk eraan [5 sec laadtyd] eg erg eigen systeempjes formats....grrrrr

toch die filters ,..wish dat ze real time waren ,...[fixed heet dat geloofk?]

wat ik instel in bv prophet 2002/mirage dat neemt de dpxover en speelt de samples met die filter instelling af,
ik d8 dat er wel een aantal dpx users waren hierooo opt forum ...?

of die twee van cuba 7000 zijn steeds hand in hand doorverkocht en niet door iedereen ten volste benut
eg mega app. klinkt rocky
maar wel [nog ] beperkt
in jan komt R een mirage aan ,..whoo waar begin ik aan , maars een library aanleggen samen met die twee
flinke uitdaging !!!
ik d8 dat er wel gasten waren die ook een dpx hebben,...niet eg dus
- [liefstmet library kennen we een weekend clubje beginne ]

net zoals die prommer van oberheim volgens mij een van de weinige app dei je de mogelijkheid geven om rommetjes te branden ,..ik heb eg geen idee wat zo,n dinhg kost ,..en de eprmmetjes ?]
wel ok asje je eigen rommetjes kan maken voor bv andern en jezelf in je eigen linn machine
helaas ook zo,n dino app. wat vergeten is

 

[Carlier74]

http://users.skynet.be/emxp/DPX.htm

Dit is software waarmee je via de pc (XP) floppies zelf kan branden. De dpx yahoo groep heeft vijf banks. Weet iemand er nog meer te vinden?

 

[R-ond]

http://users.skynet.be/emxp/DPX.htm

Dit is software waarmee je via de pc (XP) floppies zelf kan branden. De dpx yahoo groep heeft vijf banks. Weet iemand er nog meer te vinden?

mn dpx is weg alle 8/12 bitt sample shizzle [boehoe egt waar ]
zelfs een nordmodulair aangeschaft zegt wel wat ...

je bedoelt denkik flopies zelf kunnen saven met die software is intressantie
omdat de sp12200 nog in de buurt staat en de dpx ook in de buurt zou graag die format overzetten

is een egt serieueze bak ..dpx p2000 ernaast hebbie leuke sample combie
analoge filters


laat de link wel ff aan eig lezen thnx

 

[MatthewLeBlom]

Mooi draadje R-ond,

Sinds vandaag heb ik ook een DPX-1. Helaas kapot (daarvan was ik op de hoogte toen ik hem kocht van de vorige eigenaar).
Er is een condensator in de voeding (zo'n 01uf 250volt ding) kapot gegaan.
Ik heb hem nog niet gerepareerd en weet dus ook nog niet of er door het defect gaan van de voeding andere onderdelen zijn gesneuveld.

Maar goed...hoe dan ook, de DPX-1 staat hier.
Van de vorige eigenaar heb ik er een grote library bij gekregen.

Als de DPx-1 weer werkt zal ik er een floppy emulator in gaan bouwen (zie: https://www.synthforum.nl/forums/showthread.php?t=197410&highlight=fz10m+dpx)
En ik zal die library doorspitten en een groot deel er van omzetten naar HXC formaat voor deze floppy emalutor.
Mochten er mensen zijn met interesse in kopietjes van de diskimages dan kan ik daarin voorzien.

Wordt vervolgd...

 

[MatthewLeBlom]

Bericht door een moderator:

Verplaatst naar subforum "samplers"

 

[Hatsum]

 

[Hatsum]

omzetten naar hxc hoeft niet voor de emu ii library

http://www.dblondin.com/samples/EII_HXC.zip