Hi Robert,

I've double-checked, and that is the version for the original DSW (v1.66). There is also a version v1.66 for the DSW.2 as well.
They are both available from the Meridian dealer's site.

The upgrade would need to be completed via the SpeakerLink connector, using the Firmware upgrade utility.

Please drop me a PM if you need any further information.

Cheers,

Steve

Main: 861v6 (LPS), 808v6, UHD722, DSP8000SE Anniversaries, DSP5200.2HC, DSP7200.2, SW1600, Sky Q, Cambridge Audio BD, Roon, M80
Office: 861v4 (LPS), 818v3, 800v4, HD621, M&K S150P, DSP5500HC, M&K MPS2810 sub x2
Son's system: 861v4, HD621, DSP6000.2, DSP5200HC, DSP33
Spare: MCD, 100 Series, 200 Series, 500 Series, F80s, C15s.