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Simplistic NJFET RIAA
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Old 25th February 2016, 03:56 AM   #15741
ogromnii is offline ogromnii  Bulgaria
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Quote:
Originally Posted by LucasAdamson View Post
How old are you? The test I linked to (in 1080p) has predicted the age of several people I know from age 3 to 70. My 9 year old can hear up to 19Khz. For me, I just hear clicks from 15Khz above.
i'm 40. will attach scope to speaker cable to see if the things i don't hear are there
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Old 25th February 2016, 05:13 AM   #15742
ogromnii is offline ogromnii  Bulgaria
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8,12,15,16,17,18,19

i also hear clicks above 15 and nothing more, and there is nothing except clicks to hear....
don't know where the problem is, but is not in mine and others ears
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Last edited by ogromnii; 25th February 2016 at 05:16 AM.
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Old 28th February 2016, 02:22 AM   #15743
alexkosha is offline alexkosha  United States
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Simplistic NJFET RIAA
Quote:
Originally Posted by alexkosha View Post
I used my analog Tektronix 2225 scope and was no way to save images. I was supposed to use iPhone camera to capture screens, but curiosity to find the problem and fix it actually won.
The only thing left is uploaded to the forum file with noise recording.
However, I still have all boards on my table and bad cap there too. I can send you the whole setup with trany if you want to learn it in deep.
Not big deal with $20 shipping forward-back.
Please let me know.


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Hi Keantoken,

Please let me know if you do want to test it and I'll ship to you the whole setup with trany. As I mentioned, I'll take care of shipment to and return. If you ask me, I definitely would like to have your opinion about that setup. I hope you have 470r load for it and if not, just let me know and drop my resistors to that box too.


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Old 28th February 2016, 04:01 AM   #15744
keantoken is offline keantoken  United States
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Sorry, my internet has been rather intermittent.

If the problem comes back then I'll take a look at it. Right now I'm busy with some projects. I'll look at some pictures if you want.
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Old 28th February 2016, 04:46 AM   #15745
alexkosha is offline alexkosha  United States
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Understood. I'll keep monitoring. It is clean on scope. Let's see how would be performance on FSP.


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Old 29th February 2016, 01:16 AM   #15746
LucasAdamson is offline LucasAdamson  United Kingdom
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Quote:
Originally Posted by ogromnii View Post
8,12,15,16,17,18,19

i also hear clicks above 15 and nothing more, and there is nothing except clicks to hear....
don't know where the problem is, but is not in mine and others ears
Try in 1080p to get those frequencies. Also, your sound card may be limited to 18/19Khz or your speakers/ headphones may not be able to reproduce those freqs.
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Old 29th February 2016, 02:22 AM   #15747
ogromnii is offline ogromnii  Bulgaria
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Quote:
Originally Posted by LucasAdamson View Post
Try in 1080p to get those frequencies. Also, your sound card may be limited to 18/19Khz or your speakers/ headphones may not be able to reproduce those freqs.
of course, it may be my soundcard, tested it 3-ways - on laptop phones out, ipad phones out and played via airplay on my reciever. on laptop at 1080, on ipad at 720 (no 1080 option), and it was all the same, nothing above 15 just clicks. another hearing youtube test ran up to 17 on ipad (no link, sorry, its a sweep tone 20-20k) so i think sound card is 17capable.

i'm not sure where the problem is, but dont hurry judging your ears
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Old 29th February 2016, 06:19 PM   #15748
ogromnii is offline ogromnii  Bulgaria
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and something on thread, simplistic riaa. simply said - the best sounding solution i ever had. sound is rich, forgiving low quality records, good ones sounding fabulous. tomorrow i will give it to a friend with extremely good setup for few days listenig tests.
anyway, lots of thanks to mr. Salas for his research and all of other participants for their output.
my preamp recieved housing from old usb cd-recorder, annoying colour, but as soon as weather gets warmer it will receive some black clothes
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Old 29th February 2016, 06:32 PM   #15749
buzzforb is offline buzzforb  United States
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IMO, if you can afford Jupiter Copper cap on output and soniccraft Platinum as interstate coupling cap, it is simply the best phono stage I have heard. Both these caps were a step up from Mindorf SIO, clarity MR, and others tried. Audyn copper from EuropeAUdio is a close second to the Jupiter copper. Soniccraft has the Juipters on sale, and Europe Audio has the Audyn copper significantly cheaper than elsewhere.
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Old 1st March 2016, 02:48 AM   #15750
ogromnii is offline ogromnii  Bulgaria
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Originally Posted by buzzforb View Post
IMO, if you can afford Jupiter Copper cap on output and soniccraft Platinum as interstate coupling cap, it is simply the best phono stage I have heard. Both these caps were a step up from Mindorf SIO, clarity MR, and others tried. Audyn copper from EuropeAUdio is a close second to the Jupiter copper. Soniccraft has the Juipters on sale, and Europe Audio has the Audyn copper significantly cheaper than elsewhere.
being afraid of loosing LF performance i oversized interstage and output cap, used 100n and 3300n, which led to good transition of frequencies above 6-7 hz. before going to high quality caps i would like to test smaller caps in order to arrange kind of rumble-filter with curve starting from lets say 30hz. after settling at some cap size i may go to better ones and metal-film resistors. this process will take some time....
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