552 -remarkable pricing

It’s authentication security; ie who ever is using the payment method is who they say they are… and are authorised to make the payment.
TOTP is a time based one time password, such as you get with a digital cryptographic key validated Authenticator application or dongle… such as Microsoft or Google Authenticator.

2FA is 2 factor authentication. Having a method with just a single factor such as password or PIN is these days considered weak authentication, it’s more secure to have multiple factored authentication… further it’s better to have the authentication factors split across something owned, something known and something you are.

An OTP is a regular one time password. An OTP provided by mobile text is now not considered secure by the US National Institute of Standards and Technology (NIST)

However credit card authentication is governed by PCI-DSS (Payment Card Industry Data Security Standards) that have not aligned with NIST at this time… perhaps due to issues of alignment with how credit cards are used, and the mechanisms by which authentication is made to enable a payment.

In short a digital payment system potentially can offer a higher level of user/owner authentication than current credit/debit cards. PayPal meets that requirement for me… and @sound-hound was asking for reasons… and I was giving mine… but I work in a related industry so perhaps more aware than some.

Hopefully that makes sense… it’s all about mitigating the impact of theft of card or numbers and preventing fraudulent use.

Excellent explanation, thank you.

Am I correct in thinking that my my Microsoft Authenticator App that I use for Amazon, Paypal discogs etc is TOTP?

For my credit (and debit) cards the site I am using says I need to authorise the payment and then in the banks app I do this (some accounts just uses Face ID, whereas others make me swipe and enter 3 digits from a 6 digit PIN - where does this stand in the hierarchy?

.sjb

Yes … exactly right.

So if all payments have to be validated using facial recognition as well as a PIN then this is good … as that is strong 2FA … ie something known, and something you are. But just relying on face recognition is not good.

Adding 3 digits from a 6 digit PIN… if on its own is weak. It’s a single something known. If you have a password and pin, that is weak multi factor authentication, as it’s two lots of something known… and not considered strong from an identity and authentication validation perspective, but your physical card, and PIN used together is considered stronger… as it’s something owned, and something known… as you would use face to face with a retailer into a card EPM.

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Is this written by AI?
Martin

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Chuckle… you sound like my wife :crazy_face:
But thanks for the compliment… but no I don’t believe I am AI

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Some people call you Betty?

G

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Thanks to all for the good advice.

After more looking at actual transactions, and failing to get patience higher than enthusiasm, I have dealt.

  • Serial Numbers 187928/190091
  • Made 2002
  • Both Fully Serviced with DR Upgrade @ Naim November 2013
  • Both VGC for age and in full working order
  • Included are the Original Boxes/Packing/Burndy/Snaic 5/Powerline/Transit Bolts/Both Remote Controls
  • Supplied with 3 Months warranty Parts & Labour

£8500.

If my old 52/SC (with non-Naim Burndy and 2017 service) and my old LP12 (Kore, Lingo 4, Ekos, Krystal etc) with a bit of patience delivers very roughly £7500 for them in total, then the upgrade has in a sense only cost me £1k.

In addition, if a few weeks listening shows that I am too deaf to notice much improvement over the 52 that I have been enjoying (and praising to the skies) for many years, I can always sell the 552. After all, a small net cost might well be worth it to know once and for all if I want one.

My girlfriend has never heard a 552, but she is not betting on my preferring the 52…

The 552 should arrive on Tuesday. I promise to remember the transit bolts. Any other advice?

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Listen and enjoy!
Maybe try to relax burndy

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Be mindful of how the inputs are programmed in to it i.e. you can allocate the inputs via the flashing lights on the rear.

If it is not self-evident even to me how to do this, I may be back for more advice!

Don’t wire it all up on/inside a rack which is tight to a wall, as you may need to see the rear.

You can program the front input buttons to different DINs on the rear - but you need to be able to see the rear panel and flashing LEDs to do this. It’s a case of reading the manual – and you could do a factory re-set. Beware that input 1 isn’t fed on the factory settings. Have fun.

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Thanks to @Richard.Dane for keeping on the right side of things with a quick (and definitely needed) edit!

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Congratulations on your purchase Nick. Will sound great with the 300DR.

The 52 with Supercap should fetch around £3500 after fees. They will sell easily though.

I don’t know how much your LP12 will go for. Maybe £3500 after fees.

Ebay fees are very high. Good luck with the sales. I have managed to sell all my old gear off now. The NDS just went off this morning. On it’s way to Singapore!

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Thanks Dan. Retirement in the sun for your NDS!

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Yes I had to reset mine as the inputs were all over the place. What an amazing piece of kit tho.

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I have had a very mixed experience of eBay the last few months. Over the years I have bought and sold a ton of HiFi. This last few months I had a dude claim my 6 month old HiCap DR was faulty. He demanded a refund and I stupidly refunded him out of worry before I got the item back. He then tried to pull a fast one and sit on it thinking the issue would go away. EBay won’t cover you if you make this mistake. I had to set a small claims process off before the guy actually returned the item… guess what …. Fully working! Wasted £60 of postage and so much effort. Lesson learned.

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I bought my Nap500 from Italy…it was a very scary process but it worked and it was brilliant even arrived in genuine Naim export metal cases…total cost including DR upgrade came out at just under 9.5k in 2018… I was pleased with that…effectively a new amp…it even came with a Naim service history…I had ot upgeaded to DR for that 9.5k price. The actual amp from ebay came out at 4.8k.

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Congratulations, but why are you selling the LP12, are you getting another source?

Well…

Over a year ago, I was offered an LP12 with full Stiletto and Skorpion base from TA, plus Radikal, Keel and Ekos and an almost new Lyra Kleos. Under £9k. Add a Karousel and it was clearly better than my Kore/Lingo4 version with Krystal and standard plinth and top plate. I’d been thinking of Keel and Radikal and had experimented with baseboards and wanted to try a Lyra cartridge, so this looked an easy decision.

I bought it and lent my old one to a mate, intending probably to sell it sooner or later. However, I was also considering shipping it to Tassie to go with the ND5XS2/ Core / 82/ HC/ 250/ A5/ Neat Explorers.

After a year of thinking about that, and that I have no vinyl there and that I would have to handle my own suspension and cartridge fitting, I decided against it. So it really has to go.

As soon as I get it back and check it out, I’ll take photos (it is a fine example with the black bits contrasting nicely with the cherry plinth) and try listing it.

If I get nostalgic, I still use my CDS2 every week or two (rather more than the Nakamichi tape deck), and I have a CDI and a Hicap round here somewhere…

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It should be here on Tuesday.

I wonder how many 552s were made, and how many of them are owned by people on here.

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