My XP5 Xs has annoying Hum

Adam Zielinski posted:

Diver41 posted:

Thanks for that Adam--yes I figured the Burndy business out!--just as an aside if no 555PS appears on the used scene within my budget --would there be

much "loss" to head for the XPS (no DR I think too dear)--with much improvement over my Humming bird!

Will ( is my name) D41

Hi Will

Humming Bird -  a good film with Mr Statham

Back to PSUs... 
Having heard all the variables.. personally I would do the following - if your dealer agrees to take the humming XP5XS back - get a refund.
Start searching for a 555PS - it may take you serveral months before one comes along. But it's worth a wait. I would not go down the XPS route. Personally I would always have that niglig feeling - what if I went for that 555.... 
In the meantime just enjoy your CDX2.2 saute.

Before someone shoots for me for the XPS comment - of course CDX2.2 and XPS are natural partners and make for a brilliant CD player. But... 555PS turns a brilliant CD player into an exceptional one. 

Cheers,

Adam

Yoh A,

Ha-- Yes the one with the NUN that decides maybe she does---ha?

Yes I figured that--OK 555PS --Hunt for RED/ etc it is-- I have emailed couple of used outlets --will see what transpires --thank you all for the advise and pointers.

Frankly I cannot see him refunding a Skerrick---ah well I'll sell it --at least I'll demand he rectify the Hum with a new Transformer under warranty

I can't sell it with it adding a Castrato accompaniment  to Leonard Cohen(RIP)

Grateful Thanks again,

Will( D41)

Adam Zielinski posted:

One thing: if you do go for a 555PS (which I highly recommend) you will need to purchase an SXPS Burndy separately. 555PS always come WITHOUT Burndy cables.

Hi Adam, I've found a 555PS + Burndy it's a 2007 Model but with little use the owner says the Caps should be Ok for another 5 years-- well it was priced fair 

but should I Recap now or wait ?--how does one know when its time/etc--they leak/blow/smell??.

Also is the DR upgrade more beneficial than the Recap?-- your thoughts please'

'thank you,

Will

Diver41 posted:

Adam Zielinski posted:

One thing: if you do go for a 555PS (which I highly recommend) you will need to purchase an SXPS Burndy separately. 555PS always come WITHOUT Burndy cables.

Hi Adam, I've found a 555PS + Burndy it's a 2007 Model but with little use the owner says the Caps should be Ok for another 5 years-- well it was priced fair 

but should I Recap now or wait ?--how does one know when its time/etc--they leak/blow/smell??.

Also is the DR upgrade more beneficial than the Recap?-- your thoughts please'

'thank you,

Will

Hi Will

That's a bit tricky one - generally 500 series Power Supplies are supposed to be good for 10 years, perhaps a few years more depending on use.

How do they manifest when they start to degrade? The sound looses focus, edge and becomes flat and dull. But the problem is - you've never heard your CDX2 with a 555PS before so how will you know if the sound is 'right' or 'wrong'?

Having said that - I've heard a 20 year-old Olive set with NAP 250 that's never been re-capped and it sounded fresh and fun So much for theory.

You can always consult with Darran at 'Class A' in Sheffield as to what he thinks.
I'd say take the 555PS as it is now, but try to discount the purchase price for a potential servicing costs in a near future (say within a year or so). A 555PS full service at ClassA is between 500-600 pounds.

I'm not sure if it's worth DR it for use with XPS2.2. A friend of mine who is also a Naim dealer has this theory - since CDX2 was invented at a time when DR technology did not yet exist at Naim, it's best to pair it with a power supply which has the technology from the same time.

Adam

Correction - it's 15 years service interval on 500 components (including 555PS). 10 years is for other Classic series.

So you're good to go for 5 years now before any service is needed.

Hi Adam, Thank you for the prompt reply--yes I did get the price down £500 so I'll go for the Recap and not the DR--but yes will listen first -I don't want to rush in another cost if as he states is true

it may sound great!--I'll be able to judge from my listening with the X5XS with my CDX2.2

Yes I my dealer took the Humming bird backI had to pay restock fee but--hey!-- dodged a bullet there, he says it does not hum-duhhhh??

Thanks again for the replies,

Will

Diver41 posted:

Hi Adam, Thank you for the prompt reply--yes I did get the price down £500 so I'll go for the Recap and not the DR--but yes will listen first -I don't want to rush in another cost if as he states is true

it may sound great!--I'll be able to judge from my listening with the X5XS with my CDX2.2

Yes I my dealer took the Humming bird backI had to pay restock fee but--hey!-- dodged a bullet there, he says it does not hum-duhhhh??

Thanks again for the replies,

Will

 

Sounds like it all worked out ok then.

Enjoy and let us (us as in Forum members, not as 'I'm a football club manager' us )) know how things sound when the 555 beast arrives

Yoh Adam,

Will do and thank you for the help! although I'm not sure you've helped the health of my wallet-- guess its Cup a Soup here for the next few months!

Best,

Will

"Yes I have to catch him on a good day--he can be volatile!--"

"Yes I my dealer took the Humming bird backI had to pay restock fee but--hey!-- dodged a bullet there, he says it does not hum-uhhhh??"

Seeing your comments above about your dealer why not find another one.  My dealer is the dead opposite of yours and couldn't be more helpful 100% of the time. 

Hi DD, Well good point-- sometimes I feel sorry for him though --with the present climate and demise of B+M stores

being a softie I may go along with him for a bit more--will see!

D41

Diver41 posted:

Hi DD, Well good point-- sometimes I feel sorry for him though --with the present climate and demise of B+M stores

being a softie I may go along with him for a bit more--will see!

D41

Diver,

           It cuts both ways and your dealer should realise that. If he maintains that stance  I'd look for another. He may not be in business much longer if he keeps that attitude up.

Ha ! True--but he did take it back without pulling my teeth!

Gotta be thankful I suppose!

D41

Diver41 posted:

Ha ! True--but he did take it back without pulling my teeth!

Gotta be thankful I suppose!

D41

You're too soft with him. 

Did he do it while gritting his. 

Ha!  He sure did--the Angst was palpable !!

D41

Sounds like you've got a good result, Diver.  I think I'd postpone the re-cap on the 555PS for a while. You'll then have 5 years to decide whether a DR upgrade is worthwhile. Getting a re-cap and DR upgrade done together means a good discount on the price. Also some on here prefer the non-DR 555PS.  I used to be one of those, preferring the non-DR 555PS on my nDAC compared to the DR version.  It was only after I had changed quite a bit of my system, including introducing DR in the pre and power amps, that caused me to try the 555PSDR again and then changed my view. 

Yoh, Ah good one--those are the hands on experiences that one savours on the forum--yes I'll see how it sounds in situ

and make decision on upgrade /etc or not--I gather the Recap would be first option.

Best,

D41

MDS posted:

Sounds like you've got a good result, Diver.  I think I'd postpone the re-cap on the 555PS for a while. You'll then have 5 years to decide whether a DR upgrade is worthwhile. Getting a re-cap and DR upgrade done together means a good discount on the price. Also some on here prefer the non-DR 555PS.  I used to be one of those, preferring the non-DR 555PS on my nDAC compared to the DR version.  It was only after I had changed quite a bit of my system, including introducing DR in the pre and power amps, that caused me to try the 555PSDR again and then changed my view. 

Slightly of tack here MDS. I'm in a similar position i.e.. DR pre/amp with non DR 555ps on nDAC/CDX2.2. What exactly changed your view re DR-ing the 555ps.

Adam Zielinski posted:

Diver41 posted:

 

--I use it with a CDX2 --I'm told though it is marginal with this player which really needs an XPS DR or the 555PS

but unfortunately I can't afford either-Ha! 

 

CDX2 really benefits from 555PS - I bought two of my 555PS as a pre-loved ones. The most recent one was 10 years old, so before it was sent to me from Cymbiosis, they had it serviced for me at Class A. All in all - costed around the same as a brand new XP5XS (give or take 100 pounds)

Oh Adam, the 555PS is the last PSU I'd put on the CDX2 .. it just drives it too forward sounding and analytical in my view ...  ok this is all subjective... but I would rephrase to say you liked the 555PS with the CDX2 rather saying the CDX2 really benefits... as I say for me couldn't be further from the truth... subjectively..

Simon-in-Suffolk posted:

Adam Zielinski posted:

Diver41 posted:

 

--I use it with a CDX2 --I'm told though it is marginal with this player which really needs an XPS DR or the 555PS

but unfortunately I can't afford either-Ha! 

 

CDX2 really benefits from 555PS - I bought two of my 555PS as a pre-loved ones. The most recent one was 10 years old, so before it was sent to me from Cymbiosis, they had it serviced for me at Class A. All in all - costed around the same as a brand new XP5XS (give or take 100 pounds)

Oh Adam, the 555PS is the last PSU I'd put on the CDX2 .. it just drives it too forward sounding and analytical in my view ...  ok this is all subjective... but I would rephrase to say you liked the 555PS with the CDX2 rather saying the CDX2 really benefits... as I say for me couldn't be further from the truth... subjectively..

True Simon - what was implied in the above is that in my opinion and to my ears my CDX2 benefited from running with a 555PS. I know that you prefer yours bare

sheffieldgraham posted:

MDS posted:

Sounds like you've got a good result, Diver.  I think I'd postpone the re-cap on the 555PS for a while. You'll then have 5 years to decide whether a DR upgrade is worthwhile. Getting a re-cap and DR upgrade done together means a good discount on the price. Also some on here prefer the non-DR 555PS.  I used to be one of those, preferring the non-DR 555PS on my nDAC compared to the DR version.  It was only after I had changed quite a bit of my system, including introducing DR in the pre and power amps, that caused me to try the 555PSDR again and then changed my view. 

Slightly of tack here MDS. I'm in a similar position i.e.. DR pre/amp with non DR 555ps on nDAC/CDX2.2. What exactly changed your view re DR-ing the 555ps.

Hi Graham. When I originally tried the non-DR 555PS v the DR version on my nDAC my amp was 282/SC/250.2. It was also pre my SL loom.  At the time I felt that while the DR555PS delivered more detail it also seemed to over-drive the DAC leading to something of a hard edge to the top end and rather over-blown bass.  I liked the extra detail but couldn't live with that digital edge and heavy bass. So I went with the nonDR555PS which seemed much smoother, albeit with less detail.

Early last year I had an in-store demo of the 552DR using a system very similar to mine, now with 300DR and SL loom. The differences were mainly Sopra 2s as compared to my 1028be's and Fraim rather than my Quadraspire.  I was sufficiently impressed with the 552 to immediately request a home demo.  However with the 552DR in my system at home I felt there was a level of detail missing that I had heard in store. I felt I knew the two pairs of speakers well enough to discount for that but there was still something else. Then I remembered that the in-store demo was using a DR555PS on the nDAC. So my dealer brought the DR555PS round and we tried it in place of my non-DR version.  That was the answer.  This time the hardness at the top end had gone and the bass was much better controlled (though the position of my speakers needed adjusting to bring them further from the rear wall and lessen the toe-in).  I immediately placed an order to get my 555PS DR'ed. Discussing the outcome with my dealer we concluded that the improvements I'd made to my system between my original demo of the two 555PSs and the more recent one had allowed the DR version to properly show its capabilities.  We also concluded there must be some synergy of having several DR components in the system.  In short, first-time round the DR555PS did too much in my old system, maybe revealing difficiences elsewhere which the nonDR version masked, but my upgraded system allowed its true potential to be realised.  

Not the result I had expected, but I've learnt to accept these surprises in the world of hi-fi.   Hope that helps a bit.

Mike

Thanks for the reply Mike. My system is very similar to yours, past and present. You've given me some food for thought.

My 555ps will be coming up for a service in a year or two. I'll give serious consideration to a service/DR.

Well My little ole squeal re the humming PSU has evolved quite remarkably into a very informative series of Posts--good to hear some real experience without the dogfights on some of the "other "

Audio sites--Kudos gentleman--I've reserved my seat for further jousts--keep em' comin'!

Anyway stay tuned for my report when I receive my "NEW" Supply--oh yes-- for those that want to know--

“The tendency to Hum is caused by an asymmetrical current waveform imposed on the AC supply by the internal Power supply”

Grateful for all the Posts and good to be here!

Will

Diver41 posted:

Well My little ole squeal re the humming PSU has evolved quite remarkably into a very informative series of Posts--good to hear some real experience without the dogfights on some of the "other "

Audio sites--Kudos gentleman--I've reserved my seat for further jousts--keep em' comin'!

Anyway stay tuned for my report when I receive my "NEW" Supply--oh yes-- for those that want to know--

“The tendency to Hum is caused by an asymmetrical current waveform imposed on the AC supply by the internal Power supply”

Grateful for all the Posts and good to be here!

Will

To quote from Master Yoda:  Patience you must have my young Padawan

Hmmm!!-- Bit peeved with you Adam--I thought we were friends?--- you never asked me If I liked it bare!! 

D41

Diver41 posted:

Hmmm!!-- Bit peeved with you Adam--I thought we were friends?--- you never asked me If I liked it bare!! 

D41

Ahhh! Yoda's little friend you seek!
A Jedi's strength flows from the Force. But beware of the dark side. Anger, fear, aggression: the dark side of the Force are they. Easily they flow. If once you start down the dark path, forever will it dominate your destiny, consume you it will....

WTF??--Are you some kinda nut job??--all that George Lucas Claptrap-- do you think you're still over on the LINN Forums???

and I thought to find Solace here----

D