"This is a Marion System SEM PRO, reissued by Tom Oberheim and purchased in 2016.
It is a one-owner item with no major scratches or damage.
Only the SEM PRO features Tom Oberheim's handwritten signature.
The original box is included, but the internal custom foam padding is missing.
The base of the adapter looked fragile, so it was reinforced with tape. Since it's a 24V adapter, the Marion System logo was laser-engraved to prevent mix-ups.
This adapter itself is made by Akizuki Tsusho. If you prefer a pristine unit, please purchase it directly from them."
"Just thought I would try a little something fun...the title says it all. 0 to 80's in 80 seconds.
Enjoy. Certified AI free and no traces of softsynths!
Drums - Oberheim DX Stretch, Korg DDD-1 - just a snare on 2 and 4 with mostly just the reverb return from a Roland SDE-330 non-lin setting, Roland TR8S - some perc and a ghost snare from the 707 kit.
Oberheim OB-8
Korg DW-8000
Bass - Roland D-50 patch also triggering a Roland JX8P and Korg Polysix to fatten and double it
Ensoniq ESQ - A nice PPG Wave patch from a sound cartridge I have for it.
Sequential Rev 2 also triggering a bell patch on the Yamaha TG33
Yamaha DX7iiD - nice dual patch one a rhodes type and the other a tine from the many banks on the Hypersynth card to finish it off and play out on."
"80's in 80 Seconds Episode 2 has landed! The first one was a bit fun so let's keep the theme going. This one starts off with a nice "groove" and builds with some synths spanning the decade. If you listen past the 80 seconds the Arp Odyssey briefly shows off its duo-phonic capabilities with a few 2 note chords that almost have a vocoder like effect with the phaser on it just after the 2 minute mark.
The following instruments were used and recorded as a 2 track with no editing or overdubs with each part being played into a pair of Arturia Keystep Pro sequencers. As always, AI free and made with real ingredients. Thanks for watching!
Oberheim DX Stretch - main drums
Korg DDD-1 - perc
Roland TR8-S - additional high hats, rim shot, crash
Berhinger - Model D - Bass
Roland Jupiter 4 - Arp
Korg PolySix - Synth Brass Pad 1
Roland Jupiter 6 - Synth layer 2
Yamaha DX7II - Bell 1
Roland D-50 - Bell 2
Arp Solina - Strings
Arp Odyssey Mkii 2810 - Lead"
"80's in 80 seconds episode 3 is here to start of the New Year! I thought something "new" should be in 'order' after the busy holiday period. Several familiar sounds in this one that can most likely been dialed in on many synths of the era but this one builds with the hardware listed below. All natural...Certified AI and VST free. Thanks for listening!
Drums -
Korg DDD-1 to start with the first hi-hat
Oberhiem DX Stretch - Main kick, beat kick, snare, additional hi-hat, clap, and rim shot
Roland TR-8S - a little kick for attack, snare ghost notes, and high hat movement
Pad 1 - Oberheim OB-8
BASS - Berhinger Pro 1 and Poly D played with the arpeggio on on the Keystep Pro
Pad 2 - Roland D50 layered with Roland JX-8P and Korg DW8000
"This demo explores the overlap between modern digital synthesis and classic instruments. The @GrooveSynthesis 3rd Wave 8M sits at the center, supported by the warmth of the OB-X and the expressive touch of the CP70 electric grand piano. Using presets by @devinbelangermusic and @MattJohnsonskeyspace
I am not yet good enough to program it myself - their sounds are a wonderful start to get to know the instrument and its vast sonic possibilities. #3rdwave"
"Official tutorial for the SonicProjects OP-X PRO-3 virtual analog VST AU plugin featuring its new Programmer's Edition.
Table of contents:
00:00:00 Intro
00:00:14 Features Overview
00:03:56 Changes in the Programmer's Edition
00:07:26 Switch Interface Size and Color
00:08:20 Tooltips
00:09:52 Patch Manager / Comparison to OP-X PRO-II
01:34:08 Voices Engine / Voice Boards Tuning
02:39:32 Pan Controls / Panning Modulation
02:49:47 Filters Section
03:23:55 Oscillators Section
03:37:29 LFO Section / Modulation Matrix
04:14:46 Pitchbend Modwheel / Master Section
04:30:01 Envelopes Section
04:36:42 Effects Section
04:48:22 MIDI Learn / Remote Program Change
04:58:43 Arpeggiator / MIDI Processor
To navigate within the Tutorial either click these time markers or use the YouTube generated chapter sections in the timeline of the video. When you click the arrow on the right side of the chapter name below the timeline the chapters will open in the right pane for direct selection.
"1979 Oberheim OB-X 6-voice analog polyphonic synthesizer in excellent cosmetic and functional condition. This unit has been fully professionally restored and is stable, reliable, and ready for daily studio use.
This is not a project or a fixer — it has been properly serviced and maintained.
Restoration
Recently (late 2024) fully restored by a Retro Pro Audio in Belmon CA. Complete restoration documentation included.
Work includes:
Power supply unit (PSU): Replaced voltage regulators (including failed LM337), bridge rectifiers, PSU filter caps. Replaced battery and added removeable battery holder. Calibrated Full calibration of all 6 voice cards Replacement of aging components where required Keybed complete service and test Control boards were removed and cleaned along with the front panel. All button contacts were cleaned and pots lubricated. Installed a dedicated 5.6V power supply for the CV S&H circuit Full functional testing and burn-in All voices tune correctly and respond evenly across the keyboard. Factory patches restored Much more was done. Full details with photos available upon request. Comes with (unrestored) Oberheim factory volume pedal.
Condition
Very clean front panel with clear lettering Excellent wood end cheeks Clean rear panel and jacks Only light wear. This instrument does not look 45 years old. Overall, a very well-preserved OB-X.
"8 horror movie theme covers performed with a variety of classic 80s and 90s synths, samplers and drum machines.
The thumbnail image is not AI generated."
Roland JX-3P, Yamaha KX88, Roland Juno-106, Roland JX-8P, Elka OMB 5, Bit01, Roland Jupiter-8, John Bowen Solaris, Oberheim Matrix-12, Sequential Six-Trak, & Prophet-VS.
"A short improvisation demonstrating an Oberheim 4 Voice Analog Synthesizer in Split Mode playing with a JoMox Alpha Base Drum Machine.
more pics and info on this synth at https://siliconbreakdown.com/4-voice"
"These units have both just been serviced. New battery, cleaned and thoroughly tested. They are both operational and the sound is thick, lush and immediatly inspiring, so many great patches! Please note: The current firmware on this Matrix-6R does not support HOLD, CHORD, ARPEG, or the CONTINUOUS CONTROLLER options on the Xk hardware controller."
"Dance of the Sugar Plum Fairy by Tchaikovsky performed on the Arturia Polybrute 12 and Oberheim OBX8 analog synths. A 'Like' would be a great Christmas gift to me. Merry Christmas and a Happy New Year from the Dockery family."
