Recent changes to DAB in London have seen two Bauer Media operated stations lose stereo DAB transmissions.
Ahead of the 105.8 FM frequency switching to Greatest Hits Radio, Absolute Radio has now been removed from the London 1 DAB multiplex. The station also broadcasts on the D1 National multiplex, but unlike the former 128 kbps joint stereo slot on London 1, this is mono only.
Hits Radio (London) has also switched to 80 kbps mono from 128 kbps joint stereo, this time on the London 2 multiplex. This move has allowed Absolute Radio 70s to return to the London 2 multiplex, also using 80 kbps mono DAB. Absolute Radio 70s had previously vacated the multiplex to make way from Hits Radio to join.
Lastly, Absolute Radio 10s is now available on the London 1 multiplex, but uses DAB+ at 48 kbps stereo. Older radios may not receive this service, but listeners should get reasonable sound quality from a higher than usualy DAB+ standard bit rate. However, the new service largerly falls into the saturated pop music market.
In general, these changes mean poorer sound quality, and in the case of Absolute Radio, poorer access to services. This is partially offset by the additional services, but these bring nothing new to the saturated pop music market, and it could be argued that the changes mean a poorer DAB service for residents of the London area.