MATRIXSYNTH

Optonica MX-1000 1970s Mixer / Analog Reverb / Rhythm Machine

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

This looks more like an amp than a mixer. The built-in rhythm machine gets the post. This would be a fun item to show off in the studio. "Check out my new amp", then flick on the rhythm section, or route a sequence running on your other gear through it with the volume down, then say "I wonder what's on the radio", mute your main mixer and switch over to the Optonica, "Oh it's me!"

"The MX-1000 is an extremely rare product, it is a mixer, an analog reverb unit & a pre-programmed rhyrhm machine.

Warm-sounding reverb, deep sinking echoes, and saturation sounds unique to analog mixers.
Rhythm machine sound like Roland CR-78.
You can listen to these wonderful sounds on youtube.

Features :
Inputs
- 2ch Microphone
- Phono
- Aux
Reverb / Echo effects
Pre-programmed rhythm machine (Waltz, Rock, Cha Cha, Latin, Ballad, Mambo, Foxtrot & Waltz Rock)"

This is the first post to feature the MX-1000. Curios what the rhythm circuits are based on.

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Future Sound Systems Cric SN 009

via this Reverb listing

You can find demos in previous posts here. You can find the announcement post with details here.

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Modified DIGIAC 4010 Logic Trainer SN 1007

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via this eBay listing

This appears to be the first post to feature DIGIAC.

"This was originally a logic trainer for education but I re-purposed it as a logic source to experiment with hybrid analog/digital modular music synthesizers. I'm selling it because I no longer have a modular synth to use it with. It has been rebuilt with all new electrolytic capacitors, I/O switches and blue LEDs. Included is an assortment of multicolor patch cables that I made up with silicone jacketed wire and gold plated 2.5mm banana plugs. Mounted in a wooden enclosure it is self contained with a built-in power supply & clock generator. Size is 19"W X 17.5 "H so it fits nicely in a 19" rack 10U space. I setup a demo video of a dual decade up counter.

Logic modules included:16x JK flip flops, numeric keypad, multiple AND/NAND/OR/NOR/XOR gates, full adder, D/A converter, 1k bit addressable memory, comparator, one shot multivibrator, schmitt triggered buffer, 60Hz clock, dual seven segment decimal display, other miscellaneous functions including four I/O switches and a patchable 16 pin IC socket (nice if you want to add an additional IC or an interface cable).

Cosmetic condition: Fair to good with some scratches on the panel and damage to the wooden enclosure (see pictures).

Power source: 120VAC
Logic family: 7400 series 5V TTL"

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Ensoniq SQ-80 w/ Extras

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

via this eBay listing

"The Ensoniq SQ-80 is a digital/analog cross wave synthesizer manufactured from 1987 to 1989.

The photos are of the actual unit.

Recently Serviced:
- Internal Battery Replaced
- Volume & Data Entry Sliders Cleaned
- All 51 Button Key Contacts Cleaned

This synthesizer is in remarkable condition. Fully tested and fully operational.

Bundle Includes:
- Ensoniq SQ-80 / 61-Key / Cross Wave Synthesizer
- ESQ Voice 80 Vol.1 (Program Cartridge)
- 4 Floppy Discs Containing All Available Voice Banks
- Ensoniq CVP-1 / CV Pedal
- Ensoniq FSW-1 / Foot Pedal
- Anvil Forge II / Keyboard Case
- Power Cable"

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BACK - Electronica #1 // OP1, Arbhar

video upload by David Falcon

"Saludos!
Siempre he querido probar un OP1 de Teenage Engineering pero los precios eran prohibitivos incluso en el mercado de segunda mano. Por suerte los precios ahora son más razonables. Hace años tuve un OPZ pero no me acabó de gustar el sonido ni la construcción del sinte, aunque si me pareció muy divertido.

Esta es la primera idea que he montado con el OP1, sencillo, yendo a lo esencial. Beat, Bajo, Arp y Pad. Añado en el modular una voz al final que toco con el Keystep (fuera de plano).

La idea es tener un equipo que me pueda llevar conmigo a todos lados en la que jugar con armonías e ideas de temas para luego construir encima.

Gracias por estar al otro lado!
David.

_____________________________________________________
(eng)
Greetings!
I've always wanted to try a Teenage Engineering OP1 but the prices were prohibitive even on the second hand market. Luckily the prices are more reasonable now. I had an OPZ years ago but I didn't really like the sound or the construction of the synth, although I did find it very fun.

This is the first idea that I have put together with OP1, simple, going to the essentials. Beat, Bass, Arp and Pad. I add a voice to the modular at the end that I play with the Keystep (out of plane).

The idea is to have a piece of gear that I can take with me everywhere to play with harmonies and theme ideas to then build on top of them.

Thanks for being on the other side!
David."