Gustard U18
Aug 22, 2022 at 12:55 PM Post #828 of 1,991
I want to do an experiment
https://electronics-shop.dk/?id=1038&username=&currency=USD&pollanswer=1
also available in the USA
USB2ISO - Isolated USB 2.0
https://www.saelig.com/UBUSB1/UBUSB1001.htm
it wanted to clean power, isolated from the laptop.
Power Output: Max. 400 mA is fine for gustard u18, as it has its own power supply.
think give it, wanted some clean sound
since also gustard u18, has 200mhz Isolator, jitter.
but play max 96khz, setting in jriver, I set that there then flac and sacd are played
but biggest news, comes along.
analog device adum 4165/4166, which take 480mb high speed on usb 2.
small usbstick adum 4166, with clock, can take most of the jitter.
can really expensive, Galvanic Isolator, be put out the game.
 
Aug 27, 2022 at 3:46 PM Post #829 of 1,991
I thought I'd answer this too, having tried several of each type:
Best USB cable: Mad Scientist Black Magic (sumptuous presentation, liquid midrange)
Best I2S cable: Blue Jeans FE (most detailed and neutral without becoming bright)
Best clock cable: Belden 4694R (decidedly the best detail and soundstage)
Martin, I have the same blue jeans FE i2s cable you mentioned here. I was thinking of upgrading but it sounds like there's no need. Curious if you specifically compared it to the AVplay HD-300? Thanks
 
Aug 28, 2022 at 2:24 AM Post #830 of 1,991
Martin, I have the same blue jeans FE i2s cable you mentioned here. I was thinking of upgrading but it sounds like there's no need. Curious if you specifically compared it to the AVplay HD-300? Thanks

Yes, I do have an HD-300 and prefer the BJ FE for sounding richer, fuller and less bright in the upper midrange lower treble.
 
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Aug 29, 2022 at 1:03 PM Post #831 of 1,991
I've been using my U18 for a few months and very pleased with it. I intend to add purple fuses to it and my DAC. Unfortunately I missed the sale they ran recently. Perhaps I can make a deal with you guys. If anyone sees them go on sale again please let the rest of us know here. If I notice it first I'll do the same
 
Aug 29, 2022 at 9:02 PM Post #832 of 1,991
It’s been over 10 month since I purchased U18… it’s running strong and still very important part of my “Chain”… I have some major upgrades to my system, but at this price point I don’t think I will be upgrading it any time now (Unless I can grab DI-20HE cheap) I have really heavy (35lbs/16 kgs) Grounding box delivered today. It is connected to all front end (SOtm sms ultra, U18, DAC and After Dark dbl crown) It’s been just a few hours for the box but the improvement is HUGE… Before connecting all front end I tested the new box on U18 vs the old (standard 1.5 Kg grounding box that has been connected to U18 only for 5 mo or so) and the jump in SQ was clear…

I have Cybershaft OCXO with higher Phase Noise/Tau on it’s way from Japan… It will be feeding 10 MHz to U18 and SOtm Ultra But I’m sure I'll just confirm what has been said here before: Gustard U18 acts like a true high end gear when connected to a good Master Clock + Fuse, Good power cord and Power regenerator…
 
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Aug 30, 2022 at 2:50 AM Post #833 of 1,991
I have really heavy (35lbs/16 kgs) Grounding box delivered today.

As a matter of interest, which grounding box is that?

I have been saying for a long time that grounding boxes are essential for digital equipment. I have one on each component from the router to the DAC. They make a big difference.
 
Aug 30, 2022 at 3:14 AM Post #834 of 1,991
As a matter of interest, which grounding box is that?

I have been saying for a long time that grounding boxes are essential for digital equipment. I have one on each component from the router to the DAC. They make a big difference.

"4 interface HiFi Audio Ground Box GND Box Amplifier Decoder Speaker Audio Grounding Box Power Purifier Electronic Black Hole"


https://www.aliexpress.com/item/2255800390848273.html?spm=a2g0o.order_list.0.0.21ef1802rqsvCm

Got it for $ 545 + Sales tax . It's heavy so they only ship via DHL . I got it within 7 business days. Other sellers have slow shipping options but about $ 40 cheaper...
 
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Aug 30, 2022 at 3:31 AM Post #835 of 1,991
Thanks. My largest one is a Silent Point and I have several Quartz Acoustics, Aucharms and SGS boxes, too.

Silent Point grounding box
 
Aug 30, 2022 at 10:50 AM Post #836 of 1,991
It looks like I will purchase the C18 later today from Shenzhen Audio to go with my U18 and A22. Does anyone know if the C18 comes with a cable? If not, can someone suggest one with a good cost to performance ratio? And what about length? Some have said the shorter the better. I think I would only need a half meter or so if that's the case. Thanks in advance
 
Aug 30, 2022 at 10:58 AM Post #837 of 1,991
It looks like I will purchase the C18 later today from Shenzhen Audio to go with my U18 and A22. Does anyone know if the C18 comes with a cable? If not, can someone suggest one with a good cost to performance ratio? And what about length? Some have said the shorter the better. I think I would only need a half meter or so if that's the case. Thanks in advance
Gustard C2 Clock Cable $150 or SOtm dCBL-BNC $630 are the best price-wise options for 50 ohm ... The next step up is Shynyata Sigma ( around 2K) ... It's almost impossible to find good 50 Ohm clock cable below $600 ...
 
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Aug 30, 2022 at 11:44 AM Post #838 of 1,991
BTW, I will have my 8 month old (Still under 2 year warranty) After Dark Double Crown 10 Mhz 50 Ohm Master clock with extras for sale soon. Extras: Matching Cybershaft 50 Ohm splitter (so the clock has 2 - 10 mhz outputs) + Afterdark PSU + 2 Cybershaft 30 Cm clock cables + Solid silver DC cable 0.5 M...
2,000 USD Net / Pls PM me.

 
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Aug 30, 2022 at 12:23 PM Post #839 of 1,991

"4 interface HiFi Audio Ground Box GND Box Amplifier Decoder Speaker Audio Grounding Box Power Purifier Electronic Black Hole"


https://www.aliexpress.com/item/2255800390848273.html?spm=a2g0o.order_list.0.0.21ef1802rqsvCm

Got it for $ 545 + Sales tax . It's heavy so they only ship via DHL . I got it within 7 business days. Other sellers have slow shipping options but about $ 40 cheaper...
What kind of cables are needed for those boxes, is the quality required?
 
Aug 30, 2022 at 12:40 PM Post #840 of 1,991
What kind of cables are needed for those boxes, is the quality required?
4 stock banana to banana cables with removable “crocodile clip” are provided with the box. I’m using 1 of them now to ground AD Master clock until I can redo the connector on Solid silver cable I have … as far as I know: Audiocrast Solid silver cables are nice but have limited connector options (RCA and BNC) or you can order “14 or 17 AWG Pure Silver” from the same store ( quality is less than Audiocrast but more options available) . I Have both in in my system now 14 Silver AWG and Audiocrast ...

Audiocrast Silver Grounding cables
 
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