MTI

“No way to test !! Sold as is !!

Outside case has some wear see pictures

Controls seem to fine !!!” Click here to visit listing on eBay

“This vintage analog drum machine and bass synthesizer combo from MTI is a must-have for any serious musician or producer. The AO-1 Auto Orchestra offers a unique blend of analog technology and musical features, making it a versatile tool for creating realistic drum and bass sounds.

With its classic retro design and sturdy build quality, this drum machine and synth combo is perfect for anyone looking to achieve that elusive vintage sound. The AO-1 features a range of useful features, including a built-in speaker system, headphone jack, and a variety of sound modes to choose from. Whether you’re a seasoned musician or just starting out, this MTI AO-1 Auto Orchestra is sure to inspire your creativity and help you achieve your musical goals.

Sold as used and or parts as I am not familiar with everything is is supposed to do. Powers on. ” Click here to visit listing on eBay

“Amazing all-analog piece of history! (Pre-MIDI) Drum machine (CR78-ish) and synth-bass (VERY TB303 sounding!) module. Also has a great organ drone and rhythmic piano synth, with separate outputs for each (there are also separate synth waveform outputs). You can bring, in and out, all the different drums and instruments via the front panel, not to mention the ability to tweak the the bass cutoff,res and decay.

This one has the extremely rare, 16r Expansion Memory box, that gives you 4 variations to each preset beat!

Unit is in fantastic shape for it’s age. Everything works and sounds awesome. ( The 2 digit tempo display works but can be a little jumpy sometimes)

Unit was fully gone over and any scratchy pots + all outputs were cleaned with Deoxit so it’s ready to jam!

Comes with everything you see pictured” Click here to visit listing on eBay

“For your kind consideration is this vintage MTI 16R Auto Orchestra drum machine and synthesizer. This very rare piece is an all analog drum machine and synth – all in one. The foot controller triggers the notes for the piano and organ sounds. There is also a backing bass track that can be turned on and off. The drum machine elements can be turned on and off as well and there are volumes for the different elements as well. A truly unique piece. Recently serviced by a reputable local tech and it’s working wonderfully. Included are the rack unit, foot controller, and components that were replaced by the tech. Enjoy!” Click here to visit listing on eBay