Puritan 156 review

I bought new fridge two years ago. Really noisy. It’s not a cheap one either. They make stuff worse and worse these days even if you pay top money.

Get a DC blocker perhaps.

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It’s mostly related to the end of freon as a gas which was very effective but bad for the environment. Not using freon today means a fridge has to work around 18 out of 24h. Good thing is NASA expects the ozone hole will have healed itself by around year 2066.

And then also that we want things to be cheap so the compressor is horrible. We prefer spending money on hifi more than fridges :smile:

You can minimise sound by putting it on isolation feet and use damping material etc.

Really, more dynamic without the 156? I’d say it’s the other way around. It was for me with my then Naim system and is most likely the same with my Gold Note system, but I haven’t tried without the 156.

It clean up so I get more of the famous inky blackness leaving room for a more dynamic sound.

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Perhaps you should try the ISOL-8 MiniSub Axis

You seem to know a lot about fridges…maybe go outside more??? :joy:

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I’ve had my battles with those… :smile: I eventually gave up. Fridge - me 1-0.

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Heheheheh. I get confused if things get too technical…if you ever have insomnia, just head to one of the threads on ethernet, network packets, ADOT etc. and you will instantly fall asleep :rofl: :rofl:

I think this one of the reasons that Naim don’t recommend mains filters.

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Tried a £3k Isol-8 DC blocker about 6 years ago, the one up from the Axis.

It killed the transformer hum but also killed the music with a CDS3, 52 & 135s. The Airlink Transformers BPS killed the transformer hum but released the previously saturated transformers to improve musical transients and thereby the musical involvement.

Best regards, BF

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I have the latest PowerLine Extreme and from the moment I hooked it up it took away a harshness that I wasn’t aware of. Music and dynamics flowed like never before, different systems different results.

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Update - I left the system on all day yesterday and overnight. The hum is still there, but it is a quiet background hum now. It is usually worst in the mornings when no doubt the whole street is up and all devices are plugged in/being used. With that in mind, I will take this as a significant win. Yes, it can still be heard if you focus, but it is not distracting or annoying anymore :upside_down_face:

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If you have not already. It might be worth a chat with Puritan, who might have a further suggestion,
The old adage….nothing ventured, nothing gained :blush:

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555DR arrived. Whilst I cannot listen to it, I plugged it into the 156 and switched it on and no hum whatsoever which is good. I find that strange as assume it has a larger transformer than the SCDR. All this leads me to think that the transformer bolt in the SCDR may be loose (perhaps impacted when being couriered). One of the guys I spoke to at Grahams thought that could be the case.

ps. The 555DR is a beauty and in pristine condition. Powerline looks like it has never been used!

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One small upside whilst I wait for an S-XPS cable is that I have plugged the 555DR power line into the SCDR. Once again, a further refinement - smoother, less bright.

Is it easy enough to open the casework to check that central bolt and tighten up if necessary?

DG…

Oooh, maybe but I would rather not risk it. I have been in contact with Darran at Class A Audio (make sure you type in audio if searching on Google :joy:) and he has quoted me a very reasonable amount to get it serviced so I will do that once I have recovered funds from my Sarum T sale. It needs a service regardlesss of the humming issue :+1:

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