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For Sale ISO FC-40-10S one pair

Things you have for sale.
One pair
One opt was used for testing in a Gm-70
Se for just a few hours.
Excellent transformers
I chose to use a pair of Monolith nano-x because the footprint was the same as previous used Monolith S -15’s
Soundwise the Iso opt’s are in the same league as the nano-x… but at half the price.
Asking 1100 euro
Or swap with a pair of iso fc120-5
 
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