My Harmon Kardon Onyx 2 had booming bass and distortion issues. There was a two button combination that would change built-in equalizer setting, but it would not hold the setting. I have searched for those specific instructions and I can't find them anywhere. I ended up buying a Studio 2 motherboard from a vendor on eBay located in Lithuania for $30, and the replacement solved the problem. The repair required special torx screwdrivers, but was otherwise and DIY easy fix.
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My Harmon Kardon Onyx Studio 2 had booming bass and distortion issues. There was a two button combination that would change built-in equalizer setting: Hold Bluetooth button and - for ten seconds for bass. Hold Bluetooth button and + button for tremble.
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The settings wouldn't hold. I ended up buying a Studio 2 motherboard from a vendor on eBay located in Lithuania for $30, and the replacement solved the problem. The repair required special torx screwdrivers, but was otherwise and DIY easy fix.
My Harmon Kardon Onyx 2 had booming bass and distortion issues. There was a two button combination that would change built-in equalizer setting, but it would not hold the setting. I have searched for those specific instructions and I can't find them anywhere. I ended up buying a Studio 2 motherboard from a vendor on eBay located in Lithuania for $30, and the replacement solved the problem.
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My Harmon Kardon Onyx 2 had booming bass and distortion issues. There was a two button combination that would change built-in equalizer setting, but it would not hold the setting. I have searched for those specific instructions and I can't find them anywhere. I ended up buying a Studio 2 motherboard from a vendor on eBay located in Lithuania for $30, and the replacement solved the problem. The repair required special torx screwdrivers, but was otherwise and DIY easy fix.
My Harmon Kardon Onyx 2 had booming bass and distortion issues. There was a two button combination that would change built-in equalizer setting, but it would not hold the setting. I have searched for thise specific instructions and I can't find them anywhere. I ended up buying a Studio 2 motherboard from a vendor on eBay located in Lithuania for $30, and the replacement solved the problem.
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My Harmon Kardon Onyx 2 had booming bass and distortion issues. There was a two button combination that would change built-in equalizer setting, but it would not hold the setting. I have searched for those specific instructions and I can't find them anywhere. I ended up buying a Studio 2 motherboard from a vendor on eBay located in Lithuania for $30, and the replacement solved the problem.
My Harmon Kardon Onyx 2 had booming bass and distortion issues. There was a two button combination that would change built-in equalizer setting, but it would hold the setting. I have searched for the specific instructions and I can't find it anywhere. I ended up buying a Studio 2 motherboard from a vendor on eBay located in Lithuania for $30, and the replacement solved the problem.
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My Harmon Kardon Onyx 2 had booming bass and distortion issues. There was a two button combination that would change built-in equalizer setting, but it would not hold the setting. I have searched for thise specific instructions and I can't find them anywhere. I ended up buying a Studio 2 motherboard from a vendor on eBay located in Lithuania for $30, and the replacement solved the problem.
My Harmon Kardon Onyx 2 had booming bass and distortion issues. There was a two button combination that would change built-in equalizer setting, but it would hold the setting. I have searched for the specific instructions and I can't find it anywhere. I ended up buying a Studio 2 motherboard from a vendor on eBay located in Lithuania for $30, and the replacement solved the problem.