LPSU choices, new contender.....

[mansr]

9 minutes ago, BigAlMc said:

For starts you could try!

Try what?

[Neverfinished0]

18 minutes ago, BigAlMc said:

Hi Paul,

 

Two questions. One easy, one a bit more challenging.

 

I'm considering my DC power supplies currently and am potentially in the market for 2 x 12 to 19v PSUs capable of 1.5 to 3amps each. (These would be to power two Intel NUCs).

 

Forgive me being candid but your website didn't help me figure out which of your units was best. Would you recommend I consider two of the DC units or one of the Big Supply units (I assume these are dual rail?).

 

Second, more challenging, question. The Op compared your PSUs favourably to the Paul Hynes SR4. This is high praise indeed (and probably explains some of the testing responses he received) given the reputation Mr Hynes products have here.

 

Without asking you to give away your secret sauce, why should I consider taking a punt on your work? No offence intended and genuine question.

 

Cheers,

Alan

 

[Neverfinished0]

Sorry - getting used to this site - I have responded below (or maybe above to your question concerning a dual rail 19V LPSU

[BigAlMc]

4 minutes ago, mansr said:

Try what?

 

Being more polite.

 

You said there's no more polite way to say this. Turns out there were several. You just chose not to.

[Richard Dale]

9 minutes ago, mansr said:

Try what?

Empathy? Being polite? Considering others who might be more interested in what the designer of the LPSU has to say, rather than your snarky comments?

[BigAlMc]

3 minutes ago, Neverfinished0 said:

Sorry - getting used to this site - I have responded below (or maybe above to your question concerning a dual rail 19V LPSU

 

Reply seems to be missing. 

 

Just fyi that you can edit your most recent post for a short while after posting.

 

Can you please post again.

 

Cheers,

Alan

[Dutch]

Just now, BigAlMc said:

Reply seems to be missing. 

 

Last post, previous page.

[mansr]

1 minute ago, BigAlMc said:

Being more polite.

 

You said there's no more polite way to say this. Turns out there were several. You just chose not to.

Paul claimed that through-hole parts are easier to replace than surface-mount. I know from experience that this is bullshit. It's that simple.

[BigAlMc]

1 minute ago, Dutch said:

 

Last post, previous page.

 

Got it - thanks!

[Dutch]

28 minutes ago, Richard Dale said:

Empathy?

 

That’s not part of its programming and thus outside of its normal operating parameters.

[The Computer Audiophile]

36 minutes ago, mansr said:

That's bullshit. There's no more polite way of saying it.

 

A bit rough and blunt, but aimed at the substance of what was said not the person. Perhaps you could give us a little info about why it’s BS. 

[BigAlMc]

18 minutes ago, Neverfinished0 said:

Each and every unit I produce Alan is custom built as if I am going to use it. If it's wrong - it goes in the bin.
2 x 19V PSU's @ 1.5 Amps each (double it 3 Amps each) will need a slightly bigger case - One Toroidal - 2 x Rectifier/Regulation units. Custom output cables are also possible. See we aim to please

 

 

Thanks Paul,

 

And would you recommend two separate units or one dual rail unit for best possible performance?

 

Cheers,

Alan

[Jud]

Just now, mansr said:

Paul claimed that through-hole parts are easier to replace than surface-mount. I know from experience that this is bullshit. It's that simple.

 

And thus you ensure that no one who might learn something from you will pay any attention.  "I haven't found that to be so in my experience, though I haven't built audio pieces for customers commercially [assuming the latter is true].  I've found surface mount parts pretty easy to replace using [description of method/tools/procedure]."

 

Then PB can have a dialog with you about whether he has ever tried the same method or tool, why he chooses not to, or say "I hadn't been aware of that; thank you, I'll look into it."

 

@Neverfinished0, I wanted to mention that Chris likes people who sell commercially to have their industry affiliation/business in their member title (which you can change by going into your user profile and editing it).  Thanks, and looking forward to hearing from you here.

[Dutch]

@Neverfinished0, a warm welcome here from me too!

 

Can you share any specs of your PSU’s like noise output, PSSR, output impedance, ...?

 

Also BigAlMc’s second question ‘begs for an answer’ IMHO!

 

Thanks!

[BigAlMc]

2 minutes ago, The Computer Audiophile said:

 

A bit rough and blunt, but aimed at the substance of what was said not the person. Perhaps you could give us a little info about why it’s BS. 

 

My two cents and then I'll drop it. Between the replies the Op received and the replies the manufacturer got so shortly after joining I'd fully understand if both unsubscribed and left this forum.

 

We should be sceptical about big claims.

 

We should ask enquiring questions.

 

We should also be welcoming and give the benefit of the doubt until proven otherwise.

 

If someone is gullible, wrong, full of it, or up to no good then that'll come out in the long run. Do we really need the usual high-post count individuals to pile in from the get go.

 

I want to hear about new products and to interact with manufacturers. A lot more than I want to read droll putdowns.

 

I'll get off the soapbox there.

 

Cheers,

Alam

[sandyk]

1 hour ago, Neverfinished0 said:

I thank this member for his acknowledgement of some products he has purchased and has used with his equipment - although he seems to have received some flack from the indigineous long term member experts who have not used or seen the item in question - shame.

 

  Unfortunately,  you are highly unlikely to gain a marked increase in sales without additional performance information made available on your website .Even many ebay vendors give basic specifications of their products which makes it easier for prospective buyers to make some kind of informed choice, although a product hand  made by a professional such as yourself, and fully tested would be preferred by many people, even if it cost more.

 Very few would expect you to make detailed photographs available, but a brief description of the topology used,  and where they differ from cheap Asian generic products , especially with power supplies would help.

[4est]

13 minutes ago, mansr said:

Paul claimed that through-hole parts are easier to replace than surface-mount. I know from experience that this is bullshit. It's that simple.

I'd have to agree with Paul on this. If I understand him, he is indicating it being repairable in the field as it should. Sure if a board is open on a bench they would be similar in difficulty. In actually having to troubleshoot and repair an unknown item, through hole parts are much simpler, quicker and easier to source locally.

[4est]

22 minutes ago, The Computer Audiophile said:

 

A bit rough and blunt, but aimed at the substance of what was said not the person. Perhaps you could give us a little info about why it’s BS. 

IIRC, you stated that you wanted this to be like a good watering hole. And so it this a biker bar or the local pub with Bob's niece at the next table drinking a Shirley Temple?

 

Mans is off base here. To begin with, many of the advantages of SMD parts are moot in an external supply such as this. These are low volume hand made PSs. Conversely to Mans' perspective, there are those who seek point to point wiring for all sorts of "audiophile" reasons. Some of those reasons are sound, others perhaps not.

[mansr]

44 minutes ago, 4est said:

I'd have to agree with Paul on this. If I understand him, he is indicating it being repairable in the field as it should. Sure if a board is open on a bench they would be similar in difficulty. In actually having to troubleshoot and repair an unknown item, through hole parts are much simpler, quicker and easier to source locally.

Through-hole parts are always harder to remove without damaging the PCB. That's really not debatable. Heavy, high-power parts are always tricky, but that's beside the point. As for sourcing parts, the easiest to find is going to be whatever is made (and thus sold) the most. With few exceptions, that's going to the the surface-mount variant. In many cases, there isn't even a through-hole version. Parts should be chosen based on performance and price, not irrelevant properties like mounting method. Refusal to use surface-mount parts can only lead to worse performance, higher cost, or both.

[Jud]

6 minutes ago, mansr said:

Through-hole parts are always harder to remove without damaging the PCB. That's really not debatable. Heavy, high-power parts are always tricky, but that's beside the point. As for sourcing parts, the easiest to find is going to be whatever is made (and thus sold) the most. With few exceptions, that's going to the the surface-mount variant. In many cases, there isn't even a through-hole version. Parts should be chosen based on performance and price, not irrelevant properties like mounting method. Refusal to use surface-mount parts can only lead to worse performance, higher cost, or both.

 

That's *almost* a discussion. Good job!  😁

[4est]

10 minutes ago, mansr said:

Through-hole parts are always harder to remove without damaging the PCB. That's really not debatable. Heavy, high-power parts are always tricky, but that's beside the point. As for sourcing parts, the easiest to find is going to be whatever is made (and thus sold) the most. With few exceptions, that's going to the the surface-mount variant. In many cases, there isn't even a through-hole version. Parts should be chosen based on performance and price, not irrelevant properties like mounting method. Refusal to use surface-mount parts can only lead to worse performance, higher cost, or both.

Oh come on. If you aren't experienced enough to know how to remove a through hole part, you probably haven't had to fix much gear. SMD work requires much more precision and prep. As to the parts, here we are talking about resistors, filter caps and some ICs. I likely could get any through hole part here in town today at the local counter.

[Jud]

21 minutes ago, 4est said:

Oh come on. If you aren't experienced enough to know how to remove a through hole part, you probably haven't had to fix much gear. SMD work requires much more precision and prep. As to the parts, here we are talking about resistors, filter caps and some ICs. I likely could get any through hole part here in town today at the local counter.

 

By the way - in the States, what *is* "the local counter" for a hobbyist now that Radio Shack is gone?

[sandyk]

6 minutes ago, Jud said:

 

By the way - in the States, what *is* "the local counter" for a hobbyist now that Radio Shack is gone?

 

 Was Radio Shack ever a REAL contender for anything other than mundane parts ?

[4est]

1 hour ago, Jud said:

 

By the way - in the States, what *is* "the local counter" for a hobbyist now that Radio Shack is gone?

I'm not talking about Radio Shack. Most every mid sized town has some sort of electronic parts place. Not for audiophiles, but for all sorts of tech repair.

[Superdad]

1 hour ago, sandyk said:

 

 Was Radio Shack ever a REAL contender for anything other than mundane parts ?

 

Don't be dissin' the Shack man!  

In my youth I bought parts for my color organs and then later TRS computers.  Plus spare parts in a pinch.  They were no Allied Radio, but hey, they were open on Friday evening and the weekends.