Sequential Multi-Trak w/ Tauntek MIDI CC Upgrade & Battery Fix

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"Comes with:

1. Sequential Multi Trak

2. Tauntek Upgrade - Makes it so the Multi Trak has CC control with MIDI. MIDI Movements can also be recorded. Essentially gives the Multi Trak Six Trak capabilities with the features of the Multi Trak as well of course. The best of both worlds. Also BOTH factory patch sets are burned in so you always have access to both of them. I belive the Tauntek upgrade is now discontinued. This one was bought from Tauntek and installed by Greg the Sequential specialist at Vintage Synth Repair. The best in business and highly recommended for your Sequential synth needs.

3. Battery fix

4. Printed Manual

5. Custom Wood sides as well as the original sides wrapped up and included as well

6. Orginal power supply - has electric al tape at the end (as shown in photos) but works very good

This one is in great condition. Works and sounds great and with the battery repair and Tauntek upgrade makes this one a special 80s Analog work station."

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Seuential Circuits TOM with Tauntek TOM16 extansion

video upload by ohm_studi_ohm

"The Sequential TOM was already a great drum machine at the time it was released, with a lot of nice features, especially regarding MIDI implementation. You could play, record, synchronise the machine over MIDI and adjust sample direction, volume, pitch and pan of every sample either on the device or over MIDI, in real time and for every step ! That gives you lots of possible variations. Not many drum machines could could achive that at the time.

And now thanx to another amazing engineering by Tauntek you can have 16 kits in the instrument at all time, without the need to switch cartridges. And even more important: you can swap the internal kit samples as well as the cartridge ones, enabling for any combination of 2 kits you wish. This is impossible with cartridges or other upgrade available, and only possible thanx to Tauntek firmware. And that makes a huge difference. Note that you can only have 15 sounds at hand not 16. The 8th pad from the cartridge layer is always a trigger out message and won't trigger a sound, even if the loade kit has 8 sounds.

You can even make your own kits if you have access to an Eprom programmer.
Check Tauntek dedicated page for more info (http://www.tauntek.com/TOM16cart.htm)
This unit also had its RAM maxed out, expanding the internal 8k to 32k and thus bringing the stock 2,300 notes capacity to a whopping 10,400. And believe me you run very quickly out of memory if you make some complex patterns with different variations.

So here is the demo, i didn't make patterns demos for each of the 16 kits but you'll get the idea, and I didn't go too deep into external MIDI playing/programming but bare in mind you can record instrument tuning pitch, volume, pan and sample direction (reverse) for every instrument on every step.

Here is the timeline:
00:00 stock kit patterns
02:28 TR808 kit patterns
03:56 TR909 kit patterns
05:08 TR606 kit patterns
06:25 CR78 kit patterns
07:17 sound preview of all the kits included in the box
11:18 quick realtime patterns programming using external pads

list of the kits included in the TOM16:
SCI Internal
SCI Basic Percussion
SCI Contemporary
SCI Latin Percussion
SCI Special Effects
Drumware Rock Drums
Drumware Techno Drums
Drumware Orchestral
Drumware Percussion 3
Drumware Hippefex
Drumware Analog Drums
Roland TR808
Roland TR909
Roland CR78A
Roland CR78B
Roland TR606"

Sequential Circuits (SCI) MAX Synthesizer with Tauntek Modifications

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via this auction

"Comes with:
1. Original manuals
2. Model 242 Interface for Connordore 64 (C64) computer, but no related software
3. Tauntek Modifications already completed.

Tauntek Modifications: look up tauntek SCIMax on internet

(1 and 2) 100 sounds, all downloadable, located in battery-backed RAM

3) Note storage increased from about 500 to about 3200

4) Unison mode is working now

5) Three sets of 100 factory sounds in EPROM:

a) 80 Max + 20 Six track Unison factory sounds

b) 100 Six Track factory sounds

c) 100 Multi-Trak factory sounds (without chorus or vel sens, of course)

d) CC parm changes to current program can be saved to program 99, then copied to any other program

e) MIDI receive buffer increased from 64 bytes to 128 bytes

f) Removed code that reduced volume of subsequent notes if CC change received while MIDI note with low velocity playing. This seems like some sort of code bug. Not sure what the intent was."

Crumar Bit 99 with Tauntek Firmware Upgrade Midi CC Control & Sakata DPM 48

video upload by umusic6

"Bob Grieb did it again and brought Midi CC control to another old veteran synth: The Crumar Bit. Information can be found here: http://www.tauntek.com/CrumarBit.htm
You can also get the new Firmware Eproms , officially licensed, from https://www.untergeek.de/crumar-bit01...
My old iPad 1 is running theTB Midi Stuff App with the Bit Controller panel. But of course any other controller or software supporting customizable Midi CC will work."

Stereoping Controller Bit 99 Tauntek Firmware and Sakata DPM 48
video upload by umusic6

Sakata comes in at 2:23.

"Checking out the new firmware from www.tauntek.com for the Bit 99 with a early version of a stereoping controller layout.
Sakata DPM-48 on beats. Bit 99 sequenced by Yamaha RS 7000, DPM synced by KMS-30. Running through the new Klark Teknik 3rd Dimension."

Italo discoing Poly 61 (with Tauntek MIDI mod)

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video upload by ohm_studi_ohm

"Quick 80s inspired tune mainly to demonstrate the MIDI sync capabilities of the Tauntek MIDI kit.
(http://www.tauntek.com/Poly61.htm)
It's a basic MIDI kit that adds MIDI IN notes and Arp Sync control to the Poly 61, as well as MIDI receive channel. These features makes already a big differrence over a stock Poly 61, or over a Poly 61M which though has MIDI implemented only works in OMNI mode and don't let you sync the arp over MIDI.
All synth sound are from the Poly 61, drums and MIDI clock are provided by the Oberheim DX."

via this listing, also on eBay

Pic of the inside below.

"6 voices analog polysynth, serviced and upgraded with a Tauntek Midi interface.

The upgrade lets you play notes over midi and also synchronise the built-in arpeggiator to MIDI clock !

Unit was serviced and is in fully working condition. It did suffer the classic battery leaking but was fixed and a brand new battery was fitted, along with factory presets.

Cosmetic is overall very good, except for the side cheeks that are damaged, and a key that was glued but barely noticeable, see pictures. Otherwise a very clean unit."

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Oberheim Matrix 6 - Tauntek 2.15 upgraded OS SN 7623278

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"24 hour sale - Upgraded Matrix 6

Fully functional and relatively clean Matrix 6. It's fully upgraded with the Tauntek 2.15 OS upgrade, and also includes the stock 2.13 EPROM should you want to revert to stock (I don't know why you would as Tauntek provides only benefits, but some people like things stock). The keyboard is level and every key works smoothly, with velocity sensing. Every button on the keypad also works, although the '0' button requires a firm press. It sounds fat and gorgeous, like an Oberheim should.

The Matrix 6 was just given a a brand new battery and thorough testing of all functions by Synapse Audio here in Portland. Tim couldn't find one thing wrong with it and says the new battery should last for more than a decade. This is as close to a worry-free vintage 80s synth as you can get these days. There are some scratches on the bottom and a few bits of rust on the metal, as you can see in the pictures, but it's very clean for a model of this vintage.

The Tauntek OS upgrade means that you can control it via a dedicated hardware interface such as the Stereoping or indeed any programmable MIDI controller. Filter sweeps will now sound like a knob being swept on an analog synth rather than a stepped, intermittent mess as with the original OS.

In addition to installing the upgraded OS, I've switched the levers to perform like you'd expect, which means reversing their direction in the menu setting, and set the interface to fast mode so you can cycle through presets and programming options using the arrow buttons rather than having to type in each parameter ever time you want to switch. You can still type in the number if you want, but cycling through filter or envelope functions using the arrow buttons is much faster.

The factory presets have been restored after the new battery install, and I've just tweaked a few of the key presets to reduce the long release tails that cut into polyphony when changing chords (it is 6 notes, after all). Programming isn't difficult using fast mode, although it requires incrementing and decrementing buttons rather than twisting knobs."

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Akai AX60 with Tauntek Upgrade

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via this auction

"Akai AX60 Analog Synthesizer with Tauntek firmware upgrade and recapped power supply. Excellent condition and works perfectly.

tauntek.com/AX60.htm

Tauntek firmware upgrade adds the following features:

1) MIDI Sysex patch save and restore - saves or restores all patches in one operation (tape save/load works as before)

2) MIDI cc parameter changes are now supported

3) Non-volatile storage of MIDI channel setting and current patch

4) Slider code modified as described above to avoid jumpiness

5) Adjustable Unison de-tune feature. (Not active in split mode) (can be disabled)

6) Random arpeggiator mode instead of "play all notes" mode (can be disabled)

7) Arpeggiator up/down mode which doesn't repeat the top and bottom keys (can be disabled)

8) Slow LFO mode which halves the frequency over the entire range of the LFO (can be disabled)

9) VCF resonance slider taper mod to move oscillation point up (overall range is not changed) (can be disabled)

10) ADSR slider tapers mod to increase effect in the lower part (overall range is not changed) (can be disabled)

11) MIDI clocking of arpeggiator with choice of 48,24,12, or 6 PPQ (can be disabled for internal or 1/4" jack clocking)

12) Sustain mode can be activated using Arp Hold switch

13) MIDI Note velocity added to VCA EG Depth setting mode (but new setting also affects notes played on AX60, can be disabled)"

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Kawai SX-240 Polyphonic SYNTHESIZER w/ TAUNTEK OS & built in SEQUENCER

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"Excellent overall condition, this enhanced Kawai SX240 synth (with Tauntek) looks much newer than a ~35 year old classic! Made in Hammamatsu, Japan in 1986.Tauntek O/S allows Sysex patch transfers/dumps and MIDI CC, so you can use a MIDI control surface (like Novation Remote SL) for multi-parameter editing. (The 1-at-a-time parameter editing is a big limitation of the original factory O/S.)Just recently professionally cleaned and serviced, including deep cleaning of keybed. All 8 voices work, 24 total OSC. Super creamy, silky SSM2044 filters! All keys, pitch bender, LEDs, and tact switches function, 100% ready for studio or field use!This SX240 is also upgraded with:1) latest Tauntek O/S, so MIDI SYSEX & CC capable.2) a CR2032 coin cell battery holder, no more dumb soldered Lithium batteries! Now it's just an easy-to-replace LiR2032 lithium battery going forward."

Oberheim Matrix 6R with Tauntek OS 2.15

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via this auction

"The Tauntek 2.15 custom OS offers almost too many improvements to list here. I highly recommend checking out a Tauntek’s web page on Matrix 6 Firmware. Not only is his new OS vastly more responsive to MIDI commands, it adds several new features and brings the MIDI compatibility to modern standards. A donation from your purchase price goes to Tauntek for the recognition of his hard work"

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Sequential Circuits Prophet 5 SN 3839 Revision 3.3 MINT - Restored with TAUNTEK MOD

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via this auction

This is the one in the video posted here.

"THIS IS ONE OF THE FINEST PROPHET 5s YOU WILL EVER FIND.

Aside from being a 9.8 out of 10 cosmetically, it is a 10 out of 10 functionally.

WATCH OUR YOUTUBE VIDEO TO HEAR THE CUSTOM SOUNDS AND SEE THE TAUNTEK MOD IN ACTION!

Here's what we did:

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Roland Jupiter 6 w/ Tauntek OS Upgrade

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via this listing

"Fully functional and near Mint cosmetic condition Roland Jupiter-6. I am hesitant to use the word Mint to describe any vintage synth but this is pretty damn close. It almost looks like it came straight out the box in 1983. It features a new Tauntek OS upgrade which improves upon the original JP6 firmware. Unlike Europa this is not complete rewrite, but an upgrade which adds:

MIDI sysex patch storage
MIDI CC parameter changes
New VCO toggling
And much more! Read about it on the Tauntek website.

This JP-6 has been serviced to preserve the reliability for another lifetime of studio use."

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Kawai SX-240 with full MIDI CC!

Published on Mar 25, 2017 Sean Ober

"Thanks to the fine folks at tauntek.com, this minty Kawai SX-240 now responds to MIDI CC. Burned a couple new firmware EPROMs, removed about 8 screws, swapped the chips and done! Such an easy, rewarding mod.

Early stages of this available firmware but damn-near complete... hat's off to tauntek.com This is one of only a few SX-240's in the world, this powerful ;o) Shoot, only about 1000 of these boards might have been made and many, many of those died due to battery leaks. Talk about a rare bird.

I also would like to thank Jordan from Cuff Lynx for selling me this bad boy! Thanks and Save The Wave... SynthWave that is!!!"

http://www.tauntek.com/KawaiSX240.htm

OSCAR SYNTHESIZER - FITTING THE TAUNTEK MIDI BOARD AND OPERATING SYSTEM

video by Mindburner

"The OSCar is a fabulous monosynth designed and built by Chris Huggett. My machine had been plagued with issues from day one. A major problem was the highly unreliable start up. The synth would not 'boot' and many power off/on cycles were needed to get it to work.

TAUNTEK have a new MIDI PCB and Operating System with may new features. I hoped this may fix my synth and make it useable aging. Here I detail my install of one of the first version of the Firmware.

The PCB needs to be built but many of the parts are readily found.

More details can be found at TAUNTEK
Special thanks to the folks on the OSCar freelists group.

Video for information only. A qualified synth tech is always recommended for synth repair."

Inside an OSCAR.

Oberheim Matrix 6 w/ Tauntek OS SN 702857

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via this auction

In beautiful shape. Everything is in full working order - fully and totally serviced. (keybed carefully cleaned & restored, power supply refurbished, new battery, Tauntek OS installed, main board calibrated, volume slider restored so absolutely no fuzz/signal loss/crackling, all buttons working without any flaws and responding to a gentle push) in excellent cosmetic shape and absolutely perfect functional shape with no flaws at all. Royalties will be paid to Tauntek immediately upon shipment of the synth."

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Korg Poly 61 with Tauntek CPU board upgrade

video upload by ohm_studi_ohm

"demo of a Korg Poly 61 that was recently upgraded with Tauntek's new CPU board (www.tauntek.com/Poly61newKLM.htm) which adds several functions to the synth that make it more versatile.
As well as extended parameters value range and MIDI Control Change for every parameter, there are some more waveform available for LFO1, DCO2 and a second LFO with 4 possible waveforms (this LFO is permanetly assigned to PWM and can be assigned to DCO pitch modulation instead of LFO1. The latter is always assigned to VCF modulation).
Other nice features are the possibilty to desactivate DCO1, MIDI synchronising the arpeggiator, random mode for the arpeggiator, the ability to use INC/DEC switches to select programs, 80 users programs (vs 64), MIDI OUT and THRU etc Nothing fancy in this video, just live editing the synth to showcase some of the new features."

Tauntek Firmware Update for the AKAI AX80 Synthesizer

This one in via MATRIXSYNTH reader Tim:

"Akai AX80 owners out there might fins this interesting — I’ve been involved with beta testing a firmware upgrade for the Akai AX80, which adds a number of features.

You gain the ability to save and load your patches via MIDI, as gain CC/SYSEX abilities. There are some other nice upgrades in there, like having a live VCF cutoff control, the ability to toggle the LFO to free running from triggered, and having the current patch number displayed when saving. I even managed be able to edit every parameter at the same time via MIDI CC! The filter control is definitely steppy, but oddly enough, it seems a lot smoother when modulated via MIDI CC.

The site with the info is here: http://tauntek.com/AX80.htm

If you can flash your own EPROMs, then it’s a free upgrade, or you can order the chip, which is pretty cheap ($30) and simple to swap out."

Tauntek also did CC upgrade mods for the Sequential Circuits Max & Multi-Trak.

New Upgrade for the Sequential Circuits Multi-Trak Adds MIDI CC & More

SCI Sequential Multitrak - Midi CC Firmware upgrade

Published on Mar 10, 2014 LeonDigz·19 videos

Update: two additional notes:
- CC's also work when the unit is in the "Stack"/Split mode, as well as when it is in midi mode 4 (multitimbral).
- MIDI CC receive only.

This is pretty incredible news. The SCI Multi-Trak offered a velocity sensitive keyboard which the Six-Trak lacked, however the Six-Trak supported MIDI CC which allowed you to use external controllers to edit its parameters. The Multi-Trak lacked CC so you could only edit it directly. This upgrade will finally bring MIDI CC support to the Multi-Trak and the CCs will match the Six-Trak with the addition of a few extra parameters only found on the Multi-Trak. If you have both synths and/or a TaunTek upgraded Max, you should be able to edit them at the same time which should be interesting for layering and editing patches. You'll also be able to do some decent A/B tests between the synths set to the same parameters.

Video Description and link to more details:

"I've been working with Bob Grieb to beta test & provide feedback on a firmware upgrade for the SCI multitrack. The Upgrade accomplishes the following;

-Midi CC parameter control for all parameter matching the Six-Trak & Max.
-Midi CC control has been code optimized for better performance.
-Additional 4 midi cc parameters LFO, VCA & VCF velocity sensitivity amount + a special request to unlock the multiplier on the VCO envelope.
-VCO envelope now has a multiplier via cc#43 to achieve 1x, 2x, 4x, 8x & 16x original depth allowing for more diverse percussive (synth drum) & sfx type patches.
-Two sets of factory patches are now embedded in ROM and can be loaded holding down a button on power up.

More information can be found at;

http://www.tauntek.com/SCIMultitrak.htm

This project was built upon development of a SCI Max upgrade Bob Grieb and I also worked on which gives this oft looked over lil' brother of the Multitrak & Sixtrak a new lease on life. http://www.tauntek.com/SCIMax.htm

Thanks + Congrats to Mr. Grieb for making a fantasy reality for many Multitrak owners.

p9

*P.S mind you ears/speakers, this synth noodling uses a lot of the cross-mod feature of the CEM3394."

Roland Jupiter 6 with Tauntek Upgrade

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via this auction

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Kawai SX240 Synthesizer with Tauntek OS & Custom Wood Side Panels

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via this auction

"These are rare in the States, and more rare in fully functional condition with the Tauntek OS installed! Warm, silky SSM2040 filters...yum

Mods to stock:
I handcrafted the wood sides from heavy, nice 3/4" Japanese white oak
It has Tauntek upgrade (see Sean Obers YouTube demo) allowing for CC paramater control. So you're no longer limited to one-at-a-time editing!
A local tech added coin battery holder with rechargable LIR2032 coin cell, so replacement requires NO SOLDERING!
Also removed a ding in the back by the power cord, otherwise this synth is super-clean inside. One red LED is out (Coarse, otherwise Excellent overall ccosmetics"

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Sequential Circuits Max w/ Tauntek Upgrade & Model 242 Commodore MIDI Interface

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"Modified with Tauntek upgrade that adds better functionality as well as six Trak and multitrak sounds.

tauntek.com/SCIMax.htm

Comes with the original manuals and rare commodore 242 midi interface as this was originally made to work with a Commodore 64. I do not have a Commodore 64 or the needed software.

You can control the parameters via midi cc with a compatible device or use an iOS app: Model610 - Synth Controller."

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