The 818v3 upgrade from 818v2 gives a substantial improvement in sound quality and is worth it regardless of MQA (IMHO).

The upgrade is ~£1.5k, maybe less depending on how your dealer is feeling. You can go v1 to v3 but it costs more. Factor that in if you are buying sub v3.

I have no experience of the 808 range but reports here suggest that the v6 (MQA) upgrade delivered the same SQ improvement found in the 818v3.

MQA can be experienced in analogue (full) and digital (first unfold) via the 218, 808v6, 818v3 and via the UltraDAC (full, in analogue only). I believe the 251 (all-in-one analogue) and 210 (streaming device) are also/will be MQA compatible.

Any speaker (DSP5200, DSP7200, DSP8000) with an SE suffix will provide full MQA from a compatible source.

Any 24/96 capable Meridian DSP speaker can receive MQA digitally after the first unfold from the compatible sources listed above.

Apologies if I have missed any other option.

In the spirit of Spinaltap, I would like to confirm that I am not involved in the corrupt theft of a global sport.