Ground Grown Circuits Custom Korg Poly-800 Filter and Chorus Mods Demo

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video upload by Ground Grown Circuits

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"This thing is great for dreamy evolving pads, drunk sounding horns, lofi surfing, and 80’s car chases.

The filter is modded to allow free playable control over cutoff and resonance, with a 2 pole/ 4 pole switch installed for more variety.
The chorus has been modded to allow adjustment of the rate, going into audio range for ringmod-like effects, adjustment of depth, and a true mix knob allowing for control between fully dry and fully wet.

There’s an external input, so you can run some audio signals in and override the noise (ext input level follows noise/filter envelope).

The internal battery has been replaced with a battery clip for no-solder battery swaps and a brand new battery has been installed.

All the tact switches have been replaced, so no annoying switch bounces while trying to program a sound.

The instrument is painted to match the green lettering in the programmer menu."

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E-MU Systems Proteus Plus Orchestral Keyboard Version SN 019403425

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"The keyboard features 61 keys with velocity and aftertouch. The main panel features a 16 x 2 LCD display, 30 push button, 1 volume slider and 1 data encoder."

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Waldorf M Hybrid Desktop Wavetable Synthesizer

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Moog MiniMoog Voyager Select Series Edition 44-Key Monophonic Synthesizer w/ Flight Case

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"Moog Minimoog Voyager with flight case in excellent condition, home studio light use only.

This is a very rare unit with:
• White cabinet
• Lunar backlighting
• All white rocker switches
• All black capped jack panel
• Blue pitch and mod wheels
• Back lighting is very crisp and with no backlighting hum present. OS v3.5.

• MIDI I/O/THRU 5-pin DIN.
I am the second owner of this fine instrument. The original owner had the synth professionally serviced October 2022 at Moog Music in Nashville:
• The analog board was replaced by a new analog board with upgraded chips.
• The analog board is calibrated and tuned according to factory specs.
• The pitch bend wheel is calibrated."

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Roland SH-1 32-Key Synthesizer with Hard Case SN 721302

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"Excellent condition Roland SH-1. Fully tested, cleaned, and lightly used. Comes with original hard case. Beautiful and deep monosynth."

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Roland Juno-106 (KIWI-106) w/ Custom Wood Sides

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"Unit has been cleaned and serviced with all voice chips working 100%. it also has a rare overlay that does not come with KIWI upgrade that was purchased separately, also beautiful rare upgraded wooden sides that I've never seen on another unit that was added separately as well. Definitely a one of a kind synth..."

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Sequential Prophet 5 Rev 3.3 120 Presets SN 3576

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"Vintage Prophet 5 Rev 3.3 with 3 banks of 40 presets, 120 presets total. This Prophet 5 has been serviced, with all pots and switches cleaned, and all controls are operating perfectly. The keyboard has brand new bushings and plays like new, with all key contacts professionally cleaned. All 120 original factory presets have been loaded into memory.

The wood cabinet is really beautiful, with very minor signs of age. There is some old tape residue/missing paint on the back panel, as shown in the photos.

This is a really great original Prophet 5. Tunes perfectly and sounds absolutely great."

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Vintage 80s Synsonics Drums w/ Original Manual, Brochure & Flexi Disc

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"Experience the iconic sound of the 80s with this vintage Synsonics Electronic Drum Machine. This classic piece of musical equipment features 4 pads, perfect for creating unique beats and rhythms. Designed by Mattel, this drum machine is a must-have for any music enthusiast or collector.

With its sequencer and synth capabilities, you can easily create and record your own unique sound. Whether you're a professional musician or an aspiring producer, this drum machine is sure to inspire your creativity.

The AC cord is not original but is compatible and works. It was tested with batteries as well as with the AC cord. It appears to be functioning as expected. The lot comes with all cords and the original instruction booklet and the larger 'Fun with Synsonics Drums' book."

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Macbeth Micromac-R X-Series Analog Eurorack Synthesizer

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sim city 4 type beat

video upload by pataphor

"I don't know why, but something about this jam reminded me of Sim City 4."