family meeting: Roland MRS-2 Promars and Roland Jupiter 4

video upload by ohm_studi_ohm

"Since I just serviced a Promars for a friend of mine I decided to compare it to my JP4.
Both units are fully working, recapped and calibrated. And both are from latter revision with IR3109 filters. Basically they have same motherboard, module board and module control board.

First a quick impro taking advantages of what makes them different: Promars has a second VCO with 2 tuning settings so it can sounds thicker than the JP4, whereas the latter is of course polyphonic and has a builtin arpeggiator and stereo chorus effect.
They share the same CPU and 'compuphonic' technology and have (almost) the same presets.
You can hear when I compare both synths that the presets don't sound exactly the same but this is more a question of calibration and preset values then synth character.
Calibration method are different for the 2 synths and there are slight different adjutements, especially on the filter frequency, width, resonance and hi pass filter setting.
Also i'm quite sure the presets value are a bit different in the JP4 and Promars. Most obvious is the "voice" preset with is one octave higher on the JP4 ! And listening to other presets some a bit brighter on the Promars while other are brighter on the JP4.
But you can observe when I edit the JP4 presets that it's very easy to get the same sound from both unit.

They do get along quite well and their respective particular features make owning the two of them even more desirable."

And some pics via ohm_studi_ohm:

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Yamaha RX17 1987 Drum Machine + Patch Bay Mod

video upload by Canned Sound

via this auction

"1987 12-bit programmable drum machine custom modified to include a heavy-grade distortion switch and a 25 point patch bay. This modification generates an array of bit crushed, flanging, glitching, distorted, delayed, tonal effects, flams and digital noise. Five patch cables included- these can be 'stacked' for even deeper audio manipulation.

13 pads: tom 1/conga 1, tom 2/ conga 2, hi hat open/bongo high, ride/agogo high, cowbell/whistle, timbale high/ cuica high, bass drum/ tambourine, snare/rim shot, tom 3/conga low, hi hat closed/ bongo low, crash/agogo low, clap/shaker, timbale low/cuica low.

Accent, level, pan for each sound.
User Patterns: 999.
User Songs: 10.
Tempo Range: 40 - 240 BPM.
MIDI in/ out.
ROM Size: 26 PCM waveforms at 12-bit resolution.
Screen: 16x2 character display.
Weight: 1.5 kg."

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Combining Moog & Prophet Filters | Sound Recipe #64

video upload by Reverb

"In this week's Sound Recipe, we create a thick and lush synth texture using a delay and the filters from both a Prophet and a Moog."

Sequential Circuits Multi-Trak - recently serviced with battery leak fix installed

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

via this auction

"Check out the MATRIXSYNTH article on the battery leak fix mod and how it's done. If it's not my Multi-Trak you end up with, you'll want to inspect yours to make sure that's taken care of.

The Multi-Trak has a character that is particularly unique, especially when compared to other polysynths of the mid 80's. Some will immediately think of the matrix editor, a somewhat trendy synth interface at the time. If you can come around to matrix patching, I've found 3 things that mostly distinguish the Multi-Trak: its precocious and self-contained sequencer, the oscillator envelope, and the somewhat snarly Curtis CEM3394 voice chip.

The sound is a bit brash and brassy, sweet, snappy, something like sour candy, but it can be sculpted into lush and hazy sounds, just like any subtractive synth. The Multi-Trak fits naturally in many styles of music; techno, disco, dance rock, hip hop. It's sibling, the Six-Trak, was used on the 2017 album GT Ultra by Guerilla Toss. This classic Sequential Circuits synth certainly boasts an intimidating feature set, but it is fairly easy to get used to. With a bit of patience, you'll find plenty of play and ideas."

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GRP A4 2019 analog semi-modular synthesizer

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via this auction

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Andromeda A6 Analog Synthesizer W/FootSwitch + Ram Card + Original Box

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via this auction

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Ensoniq SQ-80 Cross Wave Synthesizer

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via this auction

"Fully cleaned and tested, recapped main board, recapped power supply, restored keybed assembly, latest os 1.83 eprom installed, fdd emulator drive installed (easy to load new banks and fast to save sequences)"

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Yamaha TX802 + Eurorack modular + Pure Data jam

video upload by Ariel Raguet

"Flores_20230423_PD_TX_EURO_01

Ariel Raguet 23-04-2023

Several technologies living together: digital wavetable (Plaits), analog subtractive (Pittsburgh Synthesizer Box) and digital FM (Yamaha TX802)

Yamaha TX802 FM Tone Generator and eurorack modular both controlled by a Pure Data patch sending random MIDI values.

These values can be notes or cv controls.

Eurorack stereo output to Kawai MX-8SR mixer channel 1.
TX all outputs to Kawai MX-8SR mixer channels 4 to 8
Kawai MX-8SR mixer stereo outputs to iPad Pro in an Alesis iODock II running Roughrider compressor, Bleas Delay and EOS 2 reverb over AUM.

Modular:
Mutable Instruments Yarns.
Mutable Instruments Plaits.
Make Noise Maths.
Agustin Aguirre RNDM
Pittsburgh Synthesizer Box.
Rebel Technology Mix 02

Recorded with Goldwave 6.72."

Suiko VS-1 Koto Synthesizer | How Does it Sound?

video upload by JAde Wii

"Support my work and look fly while you're at it: https://www.dawlessjammin.com/"

Polystepper - electroacoustic synthesizer

video upload by Love Hultén

"Polyphonic electroacoustic synthesizer based on 4 stepper motors, Teensy and a MIDI keyboard. MIDI controls frequency(tuned vibrations) and turns the 4 motors into mechanical oscillators. Code created by Koka Nikoladze."