a good quality 24vdc linear power supply
Tolerance was 23.7 to 25.5 V.
It is not actually the 'DC' specification precision of a linear PSU that matters for audio - but it's AC performance wideband.
I looking for a good quality 24vdc linear power supply to run a preamp, does anyone know if any of the Naim power supplies have an output of around 24vdc. Thanks.
I want it for a bit of an experiment, to see if it will be as good or better than the AGM battery supply I’m currently using. If it’s not, then I want to be able to sell it on without losing too much money. Unfortunately, the power supplies you mention although excellent choices do not appear to be readily available second hand. If however they were bought new I feel the resale potential would be limited due to being 24v, which is far from the most popular voltage. However, second hand Naim units are plentiful and easily bought and sold, so hopefully meet my needs.
The AGM (absorbent glass mat) batteries I’m using are a type of modified lead acid cell which I have temporarily lashed together with a bit of wire and fuses. I had them knocking around from a disused burglar alarm, so thought I would give them a go to see if they improved on the Chinese linear power supply I was then using. It’s not an over statement to say I was quite taken aback with the improvement in just all aspects of reproduction, tone, micro detail, decay, the notes just seem to hang in the air, a really rewarding musical experience. However, before I start the process of transforming the lash up into a professional affair I thought I would test out a decent quality power supply to see if I can accomplish anywhere near the same results with less effort.Totally understand!
Googling 'AGM' - they appear to be Lithium batteries ... rather than SLAs?
If so, my experience may not be relevant ... but I have used both a 24v SLA setup (2x 12v SLAs in series) and a 24v Sbooster, for the 'Muse' phono stage which I make.
I first chose SLAs because I thought they had to be a "low noise" supply - which is good for a phono stage.
Then I decided to try out the 24v Sbooster (when it first appeared). My conclusion was:
* the Sbooster gave nothing away to the SLAs, in terms of noise floor
* but it seemed to better deliver the leading edges of transients.
There are many different types of battery Pete, what type were you using, were they the AGM type like I have used?I ran a 62 from 4 12v burglar alarm battery’s it sounded terrible like an AM radio compaired to a simple lm317 regulated supply.
Pete
Yuasa sealed lead acid.
Pete
I ran a 62 from 4 12v burglar alarm battery’s it sounded terrible like an AM radio compaired to a simple lm317 regulated supply.
Pete