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From the Community
From the community
No conversations about the SY55 yet — own one or know it well? Ask the first question, share a fix, or post your unit.
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Audio Demos
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Compatible Sound ROMs
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EPROM Archive
Yamaha SY55_OS_V1.06
V1.06os·86D71B1F0
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Parts & Components
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Modifications
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Owner Registry
Production figures for the SY55 were never widely published, so there’s no official record of how many were built — or how many survive. This registry is a community census: every owner who logs their unit makes it the closest thing there is to a real count.
0units registered
0 serials recorded
No units on the census yet — be the first to put your SY55 on the map.
Own one? Add it to My Gear to join the registrySerial number, condition, and configuration are aggregated anonymously into the census.
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