Many of the difficulties are to do with English not being a native language. [It never ceases to amaze me that people from all over the world manage to achieve so much here on this site!]. That said, it does appear that the apparent putting down of AP2's product is based on subjective reason and, that being so, is out of place.
I suggest that the matter is dropped and that the thread await LC's final decision as to which SMPS he considers best for purpose.
I suggest that the matter is dropped and that the thread await LC's final decision as to which SMPS he considers best for purpose.
I only know that yesterday came the aluminum frame, it is correct that you do not have to experiment to mount this smps.
I wanted to offer a product easy to install without any problems.
Today I was ready to send (LC could have in two days).
This means that I believed on first one, and I have been working in this direction.
Coincidentally, one of the competitors has not attacked me, but the product with absolute false statements.
I compete with this person?
if I'm LC, I put competitors out of the window with the smps.
I accept serious test but not in this way.
well, story is closed for me.
AP2, *you* will compete with *nobody*:
Your SMPS will be compared by L.C., in a fair way, i'm sure, *and in the limited area of a First one power supply*, with two other SMPS (for the moment). And he will print his conclusions... no talk, no commercial...
Let's the products talk for themselves.
You know how much VSSA has been build. You know how much 'First one' are yet ordered here, and here is only a part of the expected sells, as L.C participate in other forums.
Make your mind, we will make ours.
I just would like to add something: CFAs are very sensitive about Power supplies qualities and it is a good test to reveal what's up. So we all (including you) will learn something, whatever the results of this competition. And i believe the result can be nuanced, like an absolute winner on quality, and an other on quality/price ?
L.C. knows what he is doing. Like the good designer he is, he cannot miss of the sense of compromise.
And an other point is interesting: Did regulation bring some advantages.. or the contrary, on a sonic point of view ?
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Members, please read my reply carefully and judge yourselves. I'm not gonna start and endless quarrel, I have much better things to do. http://www.diyaudio.com/forums/powe...tions-quality-off-shelf-smps.html#post3878006
To Cristi.
You have better things to do? ...That sentencing go around my smps is obsolete, I use pseudo science? maybe you not understand my actions, my article, then I pay your ignorance?
My threads you've mentioned, contain no false words. or pseudo science.
ask it to another engineer to explain to you what I wrote in the thread. DPA-400 pressure
You have better things to do? ...That sentencing go around my smps is obsolete, I use pseudo science? maybe you not understand my actions, my article, then I pay your ignorance?
My threads you've mentioned, contain no false words. or pseudo science.
ask it to another engineer to explain to you what I wrote in the thread. DPA-400 pressure
Hi AP2,
Can you give us the cost/pricing of DPS 400 and DPS 500? This will at least help us set our budget if we have to go to your SMPS or conventional PS.
Can you give us the cost/pricing of DPS 400 and DPS 500? This will at least help us set our budget if we have to go to your SMPS or conventional PS.
Unfortunately, after reading three pages of nonsense, the only reason that would (probably) make me buy one would be a positive assessment from LC. The sellers attitude is totally unprofessional (I won't send any product for test because somebody somewhere talks dirty about me and my products - big BS) that reminds me of kindergarten discussions and lamentations.
I would avoid sending a product for testing only if I distrust product's performance. If the product is so good, I don't care what the others say, but I would smile with pride when the tests would close their mouth forever.
LC fully honored his promises about VSSA performance and I trust his professional word; I am sure I am not the only one 😉
Cheers!
Hi,
This weekend I will try to clarify with table prices , shipping and accessories that I thought for these smps .
The version in the last photo , I'm trying to keep a low price , considering that it takes 2x DPS-500/DA . should be approximately 250 € two, includes Heatsink, in GB.
A small difference to the frame which I did realize , just the cost of AL and mechanical work. € 12 for two.
Regarding the DPS-400, I can continue to offer a new batch, complete pbtu3 ELNA 2x5000uF. 2kit at € 130,and € 150 the 120Vac version.
But I think the 700pz I have in storage, not enough to cover the current demand under promotion.
Metallicus69 :
I do not want polemics,
Obviously everyone has a personality and this is dictated by too many things to explain . if someone had said that the products are not good , this is a part of a forum.
But in this case , a defamation requires intelligence and malice , saying it is copied from GoldAmp characteristics changed etc etc. . the person does not know how much this can cost maybe.
This forum is full of vendors , are they who built the " pseudo- science " as... infected The vcc rail with high harmonics ... it is not a problem for the amplifier, and other stupid laws for convenience.
I do not have standard smps , very simple to make at very low cost also.
the time will pass , some diy now have my products , the truth will come out, and even the personality , this can not be hidden .
Regards
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please make this measurement and show us the result. http://www.diyaudio.com/forums/vendors-bazaar/250686-audiopower-dps-500-da-gb.html#post3880166
Make sure the conditions of the test are respected.
Make sure the conditions of the test are respected.
Is very easier than you show 60Hz and 100hz SIN for 353w as I have shown. this is a measure which is really close to the normal operation of an amplifier amateur. a bit exagerate but just we see the behavior, considering we have charge time of 10mS at 50Hz ac line
If you have smps regulated, it is sufficient that put a 33-66ms burst SIN 1kHz at 353W(or near clip) output, just to see the time response of your amp error. (or square wave,for precise response time measures) but not need in this case.
I can not detach the filter output in the DPS-500 for the strange and out of each protocol, the measure you propose to me.
At end, show harmonic content at 100mA and 30% of your max power. this is absolutely essential if you need to use in audio amps.
You're wasting your time, you can not get these performances with the criterion standard chip, transformer, etc for smps. all of this, is created for industrial use, this is a problem.
I'm sorry but i do not want a relation with you.
LC have has interest in the audio community, the first step will be just the harmonics in the output. these can not be eliminated by any existing filter.
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i also don't need polemics but good products. i cannot afford to test all the PSUs in the market and don't have the tools to measure them properly. The one who has them for sure is Lazy Cat, and he also has the amp. He knows as well how to judge the sound differences, as his impressions were confirmed by my impressions. So I trust him even on his subjective assertions.
Your personality won't allow a combination to be tested, and that's a shame. You don't believe it's a winning combination? from what you claim that's not the case 😕
Cheers!
Hi,
If I understand well the last part of your message, yes, I agreed with LC, I am sending two smps +1x DPS-400 just for curiosity.
I never doubted from the beginning the result that the LC will give, as
I have never driven directly buying in this thread.
Regards