I have covered this in a previous post. I had an O4HD bite the dust after 2 yrs of minimal use. I bought directly from OLIVE. Sent to Olive for repair. They could not repair because they no longer have the part - a motherboard - but they sure wanted to sell me on their one and only unit; namely titled the ONE. I can honestly say I had less than 50 hrs use on this POS low-quality audio junk.
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