07-Jun-2015, 17:36
I've kept with 8.0 as I really liked it initially, but things started to fall a bit flat over the last couple of weeks or so. One change I had made was to switch off DPM. I was rather following the general consensus here in that any power efficiency processing must be bad for sound quality. After getting a bit frustrated with the rather bland sound quality I decided to turn DPM back on. That initial magic I heard with 8.0 is back! It sounds a lot better - bigger soundstage, just more colour, punch etc. I've left it like this for a week or so and have not been disappointed once.
I would love to know what DPM is doing. I suspect it's not really a case of saving electricity because the Devialet is pretty efficient anyway and is not really going to add much to the electricity bill. I have a theory that higher temperatures are a bit of an enemy of sound quality with my Devialet, and with DPM on the thermal regulation seems to be a lot better with temperatures rarely getting over 40C. With DPM off it's typically 45C or more and when the weather starts to get a little bit warmer it does seem to get even hotter. DPM does seem to be assisting in that temperature regulation. My Raidho C-1.1s are a bit power-hungry too and I've started to realise I'm probably on the edge of the power delivery requirement for them. DPM could well be delivering that power more efficiently and hence I'm seeing bigger improvements than other people.
I would love to know what DPM is doing. I suspect it's not really a case of saving electricity because the Devialet is pretty efficient anyway and is not really going to add much to the electricity bill. I have a theory that higher temperatures are a bit of an enemy of sound quality with my Devialet, and with DPM on the thermal regulation seems to be a lot better with temperatures rarely getting over 40C. With DPM off it's typically 45C or more and when the weather starts to get a little bit warmer it does seem to get even hotter. DPM does seem to be assisting in that temperature regulation. My Raidho C-1.1s are a bit power-hungry too and I've started to realise I'm probably on the edge of the power delivery requirement for them. DPM could well be delivering that power more efficiently and hence I'm seeing bigger improvements than other people.