I'm selling my synergy syn-2 preamp host. It has a 110v power supply, but i'm selling it with a 220/110 step down transformer plus grounding, and it works flawless.
Price here €650 plus shipping. No original box or manuals.
At the same time, i have for sale a Synergy OS, their take on a Dumble preamp, clean and lead channel.
Selling it for €300 plus shipping. It comes with original box.
Price for both: €950 shipped to (almost everywhere in the) EU.
Here's my Reverb listing: