MATRIXSYNTH


Saturday, February 25, 2023

Oberheim OB-8

Note: Auction links are affiliate links for which the site may be compensated.


via this auction

"This Oberheim OB8 was purchased locally in Austin, Texas and received a full service from Switched On Austin last year. Service performed included recapping, cleaning pots and full calibration/tuning.
This OB8 comes with MIDI.
A very nice stardust vinyl cover with Oberheim logo is included.
While under my care, this instrument has not been idle - it gets powered up and used regularly.
All pots are dead silent and smooth to turn - all buttons light up and respond instantly - outputs are silent and hold cables solidly in place without jiggling. Power supply housing holds power cable tightly in place.
Original keyboard is spotless, responsive.
Pitch and mod benders are sturdy with proper resistance and feel.
A few stray scratches here and there - overall, an extremely clean face and working surface.
Back panel has no warping, melting, discoloration, smearing or other nasty stuff you might see on a vintage synth.
Original wood panels are smooth and have retained their natural color and character.
Lastly, the sound is just as strong, vivid and dynamic as one would expect from an Oberheim.
In short, this is a beautiful instrument in outstanding condition that will give its new owner several years of trouble-free use.
One thing to note - the original presets were loaded when the service was done last year, but I have written over most of them with various pads I needed for a project. They'll still be there at the time of purchase.
How did I arrive at the price? I am not a collector - I am a professional artist and do not "flip" instruments. I paid $5000 for this instrument in Dec of 2020 right here on Reverb and I paid for $1000 worth of service months later - I think $5995 is fair and probably the best price on Reverb. I have used this synth often and recorded what I needed from it. It's always been a joy to own and use. It's simply time to move on to my next project and make room in my studio for other gear."

Oberheim OB-XA SN 824319

Note: Auction links are affiliate links for which the site may be compensated.



via this auction

"This particular one spent some time on the road in the early/mid 80s and has lived in a studio ever since. Collecting dust for 15 or so years, it got a little old and finicky - so I took it to Main Drag Music in Brooklyn NY and had it overhauled. (specific work done listed below)

Repair Parts-TKKeyboard Bushing X61, Capacitors, IC Sokcet 14p X2, 6800uF 25V Axial X1m 3300uF 50V Axial x1, 3300uF 35V Axial X1, 2200uF 50V Axial X1, 470uF 35VAxial X1, D Capacitors 15uf 50V x15, 47uF 50V x32, Battery 2/3A with Solder TAB x1, Bender Pot 10K Long Shaft 1/4. X1, Cmos IC 4051 X9, OP AMP IC TL084 X1, CA3086 X1, LM741 X1, DIP Switch 8P X1, Oval #8-32 Screw and Cup washer set X12, Trim 3296W Multi Turn Trim 10K x16, 100K x16 for VCO. Trims for Bender Unit X8, Trims 5K x1, 100k x1 for DA converter section. Hi pricision Resistor 100K 0.1% X32, 750K 0.1% X16, 1M 0.1% x16, Terminals for MOLEX Connector X178, Screws x10, Wires,

Old Keyboard bushing for Kyboard, Replaced All Bushing and Adjusted Space and Height for Keys. Cleaned up and Lubed Bus Bars and All J-Wire Contact. Bad Connection VOice Selct DIP Switch, Replaced. Cleaned up And Lubed all Switches and Pots. Replaced Electrolytic Capacitors for Power Supply and Power Lines. checked and Adjusted Voltages. Bad Connection on Molex connectors, Replaced all Terminal for Molex Conextors ( x178), old Pricision Resistors are out of spec. Replaced Resistors for VCO ( for Auto Tune. ) Voice #8, Out of tune, Replaced CA3086 VCO IC. Old Trimmers are no good. Replaced Almost Trimmers. Old 4051 CMos ics are no good. Replaced all 4051. Replaced all Trims. pitch bender is not good, Cneter is not stay, Replaced Pitch bend Pot 10K Long Shaft. Old Cmos Ics on Main CPU board section. Replaced 4051 x9. checked and Adjusted Voltages. Re-caliberated D/A. All Voices. Voice #4, Filter is open, IC is broken, Replaced 741. Upper filter is open, Bad connection, TRACK line, Cleaned up ribbon cable.

Re-calibrated Couple of Times Checked and burn in test."

Vintage synth vibes with upcoming KORG oscillator plugin


video upload by Sinevibes

"In this sound example we’re testing our upcoming KORG plugin further: this time it’s showing a new quality reduction feature, which sounds incredible when paired with our Stator tape wobble simulation effect"

Roland SH-4d // in-depth oscillator models, mod matrix, & How to Make the Hoover Patch in 5 Steps


video upload by Starsky Carr

1st video in the user playlist here. Additional Roland SH-4d demos here.

"Tutorial demoing what each of the SH-4d Oscillator models can do, and more importantly what they can sound like because that's not available from the manual - :)

What's interesting here is that the mod matrix options change per model. For example, some have 2 slots, others have 4 and the wavetable oscillator has an additional envelope to auto play through the wavetable shapes, and this becomes available in the mod matrix as a source for all the destinations.

In other words, the basic sound engine is very simple, like the vintage units, but you can go more complex if thats your thing."

How to Make the Hoover Patch in just 5 Steps

video upload by Starsky Carr

"Try this on any synth but the @rolandglobal SH4d had got an Alpha Juno style sawtooth with PWM.. so thought I'd give it a go!...turns out it quite simple :)"

Korg Drumlogue // First Touch // Tweaking Factory Bank D // Part TWO


video upload by LESINDES

"In FIRST TOUCH with KORG DRUMLOGUE and trying to hack through the menues and features of the machine.
This is the PART TWO of the session." [part 1 here]

Min. Chapter
00:00 Intro
00:14 Heavy Reflection (VCF tweaking)
05:11 Mole’s Gride
08:17 Tri Dubwise (toms + distorsion)
12:12 Even Counts
15:23 Credits"

midiphy LoopA Song Mode (and other features of new firmware v2.10)


video upload by Hawkeye

"Introducing Song Mode and other new features of midiphy LoopA firmware release version 2.10.

LoopA Full kits are available in the shop :
https://www.midiphy.com/en/shop-detai...

Contents:
00:00 Song Mode: Clip Preparation
01:07 Song Mode: Pattern Basics
06:13 Song Mode: Pattern Length & Pattern Restart
08:22 Song Mode: Tempo & Tempo Fades
09:27 Song Mode: Pattern Probabilities & Jumps
14:07 Song Mode: Cueing a Pattern
15:23 Song Mode: Copying & Pattern Import
17:14 Song Mode: Force-to-scale & Beatloop
20:14 Force to Scale: White Keys Mode
22:10 Tap Tempo

LoopA firmware download:
https://www.midiphy.com/en/loopa-v2/

Best regards and enjoy!
Peter/Hawkeye"

Eurorack Waveshaping VCOs


video upload by John Schussler

"Several interesting new VCOs have been released over the past 6 months or so, and just recently the one I was waiting on, Legion from WMD, arrived.

So now seems like a good time to look at this batch of VCOs that all have a similar add-on feature: waveshaping. They don't all do it the same way, and all have very different sounds, but in my head they're sortof a category from which I probably only need one or two.

We'll see.

Sequence from Stochastic IG, envelope from Zadar.

00:00 Intro
00:20 Pony VCO
06:08 Virt Iter Legio
12:15 Pizza
19:58 Legion"

Ensoniq DP4+ Demo and Service


video upload by Don Solaris

"Music by: Stavros Odysseas Theodoropoulos
Performed on Ensoniq DP4/+ with Don Solaris custom patches

00:00 - Intro
01:13 - Disassembly
02:35 - Main Board
36:54 - Display Board
40:48 - Power Supply
44:22 - DSP Board
47:46 - Additional Work
50:59 - Before / After"

Introduction to Music and Synthesis


video upload by Bata

"Going over some of the basics of the piano keyboard, music theory, and synthesis. This video is meant for people who are very new to synths and keyboards. I briefly talk about notes, intervals, chords, scales, oscillators, filters, envelopes, modulators, and effects.

Synthesizer used here is a Nord Wave."

Overview and first try of the Beats FM by X Audio Systems


video upload by Rudetee

"A brand new device from X Audio Systems The Beats FM . A FM,AM SW radio receiver with a Lo Pass filter a LFO and Digital delay all syncable to TAP tempo and external clock.Also to incoming audio. A very addictive little machine from Turin Italy."
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