Hello, I made a quick sound comparison for these two great speakers. For the test, both speakers and youtube player are at maximum volume, but the volume of windows is adjusted to 20. Both are connected with sound card Xonar U7, RCA cables and the speakers at self are adjusted to treble + 3 and bass + 2

Edifier R1280T – https://amzn.to/2Lb8mlR
Edifier R1700BT – https://amzn.to/322I7F4