Interestingly the 2019 AB that I’ve recently purchased doesn’t have the speakers in the rear of the front seats but appears to have the Reference audio system. The build sheet for the vehicle has the following entry...

In Car Entertainment / Speakers Premium Audio 1280 W (025LN) 2019 L405 SDV8 Autobiography
2023 Defender P400e HSE X-dynamic - gone
2020 Defender P300 SE - gone

2019 Jaguar F-Pace SVR - gone
2013 SDV8 Autobiography - gone
2011 L322 TDV8 Vogue SE - gone
2006 L322 3.6 Vogue Se - gone
1999 P38 4.0 se - gone
199? Classic 3.5 - gone

That’s very confusing! Mine is the same spec, but I understood that was the 825w system? 🤷‍♂️

Ah, mine is 2013 so likely changed on 2019 models..

In 2013 the 825 system was standard on Vogue SE (and AB) and the signature reference system a £4,000 extra. My understanding is that this remained the case throughout the life of the 405, and only on the L460 did the signature reference system become standard on AB (except during parts of 2023 when that system was restricted to SV due to supply shortages).

There were some special 405s that had signature reference as standard, e.g. AB Black LWB. Only Range Rovers since 1988

Thank you both for the info. 👍 that confirms mine is 825w.