The Yamaha CS80 & CS70M - An Exploration of Two LEGENDS!

video upload by Vintage Synthesizer Solutions

"Please join us while we do a direct sonic comparison of these two classic Yamaha synthesizers. As is widely recognized, the CS80 is arguably the most legendary synthesizer ever made. Just under 800 units were produced at an MSRP of roughly $7000 each in 1978. The CS70m was the follow up flagship model and retailed for just under $5000 in 1981. We could not find the production total for the 70m (if anyone knows, please share in the comments!). However, like its sibling, I would guess that less than 1000 were made during its production run which ended in 1983 as Yamaha prepared to release the DX7.

While they do not sound identical by any means, we hope this video demonstrates how incredibly under recognized the CS70m is within the CS Poly family. It is the closest you can get to the CS80 in terms of feature set, voice architecture, and dual channel sound. For the prices people ask today for the CS50 and CS60, one would be smart to look for a 70m instead (IMHO!).

The audio is DIRECT & DRY - You are hearing the raw audio as it comes directly from each synthesizer. NO post processing (Effects or Dynamics) was done.

Thank you so much for watching! This channel is a passion project. We are just two hobbyists who share a deep passion for synthesizers. Please consider subscribing, we would greatly appreciate it! 🙏

**I am not a professional keyboardist! :)**
*On the CS80, the sliders labelled: "Sub Oscillator" = LFO*
Fun Fact: The CS80 has 8 voices; the CS70m has 6.

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As always, a huge thanks to www.jeffreylatour.com for the amazing filming & editing work!

0:00 Intro
0:40 History & Development
1:30 Features unique to the 80 & 70m
2:08 Performance Controls
2:50 Voice Structure/Signal Path
4:44 CS80 Pitch Ribbon & Analog Memory
5:46 CS70m Updates & Diferences
7:50 CS80 Sounds
17:45 CS70m Sounds
21:01 DOG! 😂
21:06 CS70m Sounds Continued
30:41 Outro"