First of all you need to determine if your speakers are truly DSP5200.2 as recognized by Meridian or are just the SpeakerLink version. There is a big difference.

If it does not report DSP5200.2 on the front display when powering up from the back panel switch, do not load v3.16 firmware.

If your speakers are the SpeakerLink version, v2.63 is the appropriate firmware.

I think that with your speakers reporting 1.3 firmware, they are 5200 SpeakerLink versions.

www.cmbintegrations.com
One step from the Presidency
#1 Trinnov Altitude 32-8-16, 271, 8000XE, 7200SEHC, 7200.2, Seaton F18, JL Fathom F113, Revel w990's, Kef R7, ATI 528 Amp, JVC RS4100K, SI screen. Roon Nucleus+, Eno AG, Eno M link, 218.
#2 Mark Levinson No5105, Ayre VX8 and CX8, Vandersteen Treo CT, Preamp varies.
#3 Meridian Ellipse