Advise before I regret


I bought a new pair of speakers paradigm premier 800 series in piano white to get a little brighter sound and replace my existing paradigm studio 100’s v3 speakers that are mint but a few years old so I went with a replacement. I just added a Yamaha aventege receiver 2080 and am anthem mc20 amp to drive them. Any adivice or experience which set of speakers is better. Before I sell the wrong pair I will
do a side by side comparison but just wanted to get some professional experience. 
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I don't think the the fact they are in Piano White is going to make them sound any different. I'm not a professional though.
Spend some time with the new speakers in your system. Get to know them. Afterwards replace with your older ones. Listen to them for a while. Repeat.  Then the answer should become evident to you.