08-11-2017, 12:40 PM
They no-doubt have a different speaker for their non-DAB sets that might well be very similar in appearance, but the DAB speaker will be "better" in some performance aspect (usually a tipped-up HF response if my experience of DAB radios is anything to go by - "ohh listen to all that detail - isn't digital great"). So this is just a simple way to avoid mixing them up in production.
Us Hacker aficionados know that many different loudspeakers were fitted to the various sets, and they all sound quite different. Most of the AM-only sets (quite reasonably) ended with with a speaker that has virtually no HF output. The Sovereign I and II had the same speaker, but partway through the life of the Sovereign II that Goodmans speaker was replaced by a Celestion which is a bit more lively at the top end. So in a sense, you could argue that there were "AM" and "FM" speakers
Us Hacker aficionados know that many different loudspeakers were fitted to the various sets, and they all sound quite different. Most of the AM-only sets (quite reasonably) ended with with a speaker that has virtually no HF output. The Sovereign I and II had the same speaker, but partway through the life of the Sovereign II that Goodmans speaker was replaced by a Celestion which is a bit more lively at the top end. So in a sense, you could argue that there were "AM" and "FM" speakers
