I wouldn't consider buying a traditional AM radio these days with the availability of cheap SDR and Android tablets.
Sounds a good idea in theory but most modern AM radios will not be able to take advantage of wider transmitted audio bandwidth because of their own internal IF filter which will cut off fairly sharply at 4.5 Khz in order to avoid adjacent channel interference. That said an older hacker / roberts etc will sound pretty good and if you are prepared to do a bit of filter tweaking on one of these old radios then FM quality is within reach..
Ofcom has published a proposed new Analogue Radio Technical Code including...
Considering requests for wider AM radio audio bandwidth
• We are proposing that Ofcom will consider proposals on a case-by-case basis from existing licensees to use a wider audio bandwidth to modulate an AM (medium wave) radio service, where this is technically feasible and will not lead to any significant increase in interference to other spectrum users in the UK or overseas.
Dave Martin
Legendary Free Radio Operator
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