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Old 27th November 2021, 16:34   #8
VVC-Geeza
This is my second home
 
2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe.

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Quote:
Originally Posted by MSS View Post
DAB radios do consume a lot more power than am/fm - it can be a factor of 3+.

DAB requires a lot of signal processing to decode the digital signal and the early radios used quite power hungry general purpose DSP chips which were programmed to perform the processing. Most major radio chip manufacturers, other than those producing cheap Chinese radios, are working on reducing the power consumtion to perhaps 25 to 50% more for DAB using dedicated signal processors. I believe the UK radio manufacturer Roberts Radio is leading in this field.

Of course the difference may be overshadowed by the power being injected into the speakers at high volume.

Thanks Maninder

I've noticed that when changing from FM to DAB in both the car and house radio's I need to turn the volume up a reasonable amount to achieve the same volume on DAB as when on FM.It would be interesting to know if this extra power consumption of DAB would also cause a much higher drain on a healthy car battery without the engine running.
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