Hi, I'm interested in recommendations of desktop speakers being fed from an iMac (Retina 5K, 27-inch, Late 2014) for Music & Movies for my office.

I don't want to run a sub just stereo sound, I was thinking about DSP3300 (pricey for office) but will I need a pre or will my MSR work them?

The iMac has USB out & a tiny headphone out.

Thanks,
W