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FS: ACA amp v 1.8 - 2 units

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Joined 2003
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Built with premium components. Cosmetically so and so (see glue on bottom for instance) but perfect sonically. Sell 220eur each shipped to Europe. If both bought discount for sure. In case you want only the boards or stock Power supply make an offer for single parts
 

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I already have 4 channels of ACA v1.6 so even though i would prefer the v1.8 pcb layout I cannot purchase just for the change. However I hope you might be able to help me with a question: I purchased a modushop housing to repackage my ACA monoblocks into a single housing and on the inside of the front plate there is a groove on both sides (only one visible in the photo due to poor lighting): what is the groove for and is it on the top or the bottom side of the amp? this would help me with the orientation of the front panel switch. Thanks in advance for the hint. Good luck with the sale.
 

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I already have 4 channels of ACA v1.6 so even though i would prefer the v1.8 pcb layout I cannot purchase just for the change. However I hope you might be able to help me with a question: I purchased a modushop housing to repackage my ACA monoblocks into a single housing and on the inside of the front plate there is a groove on both sides (only one visible in the photo due to poor lighting): what is the groove for and is it on the top or the bottom side of the amp? this would help me with the orientation of the front panel switch. Thanks in advance for the hint. Good luck with the sale.
See picture. Slots i cant see as they are at the edges. I think Is irrelevant if up or down.they only superpose to the vent grilles
 

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Glue residual of feets. I have to displace the feet because in a second stage i added the filter. Screws were in correspondence of the feets. Hence the glue markings. I understand people might not like the cosmetic hence i can sell as parts (i.e. populated good components pcbs), or accept a offer for the complete amp. I could try to polish It but not with components inside
 
What is the groove for and is it on the top or the bottom side of the amp? this would help me with the orientation of the front panel switch. Thanks in advance for the hint. Good luck with the sale.

There is no difference, the front panel can be mounted either way. These grooves are used by our anodizer to attach the panels to their hooks and put them in their anodization tanks