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JCAT USB Card FEMTO

Started by Marcin_gps , Sep 15 2016 02:38 PM

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490 replies to this topic

#41 Marcin_gps

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Posted 08 November 2016 - 04:34 PM

Yes, any USB device should work in principle, but I haven't tried any microphone, so am not sure if there will be any advantages.

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#42 SIMA66

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Posted 27 November 2016 - 03:29 PM

Is there any sound difference (beside the speed) between the two USB outputs and what will be benefit of having both?

Also, I'm a bit confused with the power "filtering"!

Is there an switch on the card where I can chose the card to do the power filtering, or not to?

Since the card doesn't need any power, does that mean that is powered from PCI slot?

Can this things be explained more in "everyday words"?

Any link where I can found a good 2.1/5mm center positive DC jack connector?

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#43 Marcin_gps

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Posted 28 November 2016 - 04:26 PM

There are no difference between ports. Both are USB 3.0 rated. For best performance it's recommended to connnect only one USB device, but some cables like JCAT Reference USB need 2 USB ports - one for data, one for power and ground.

What is confusing about power filtering? If you want to skip low noise linear regulators on the card, just switch the jumpers on the card to NO FILTER setting as described in the manual: Manual

But I wouldn't recommend this.

If you do not connect any PSU to the USB Card then it will use PCIe lane as power source. However, if any 5V external/internal PSU is connected to the card either via LP4 or via DC jack, the card will be powered from that PSU exclusively. There are automatic switches. It is described in this blog post: http://jplay.eu/ml_p...usb-card-femto/

Cheers,
Marcin

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#44 Marcin_gps

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Posted 28 November 2016 - 04:29 PM

BTW - the JCAT USB Card FEMTO is getting great feedback. Check it out: http://www.computera...html#post600236

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#45 SIMA66

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Posted 28 November 2016 - 10:32 PM

There are no difference between ports. Both are USB 3.0 rated. For best performance it's recommended to connnect only one USB device, but some cables like JCAT Reference USB need 2 USB ports - one for data, one for power and ground.

What is confusing about power filtering? If you want to skip low noise linear regulators on the card, just switch the jumpers on the card to NO FILTER setting as described in the manual: Manual

But I wouldn't recommend this.

If you do not connect any PSU to the USB Card then it will use PCIe lane as power source. However, if any 5V external/internal PSU is connected to the card either via LP4 or via DC jack, the card will be powered from that PSU exclusively. There are automatic switches. It is described in this blog post: http://jplay.eu/ml_p...usb-card-femto/

Cheers,
Marcin

Now the picture is much clearer!

I'm planing to power the card with Paul HYnes PS (3A) and I wondered if powering the JCAT Intona and Sonicweld HR, in the same line (from the card), would be to much?

How good or bad would that idea be? Or is it possible in the end?!

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#46 SIMA66

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Posted 30 November 2016 - 04:44 PM

On the card specs says that it needs "2.1/5mm center positive DC jack connector".

I have only 2.1/5.5mm and could not find the 2.1/5mm!!!

Will this connector fit, or, where I can find the 2.1/5mm?

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#47 Marcin_gps

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Posted 01 December 2016 - 05:45 AM

Now the picture is much clearer!

I'm planing to power the card with Paul HYnes PS (3A) and I wondered if powering the JCAT Intona and Sonicweld HR, in the same line (from the card), would be to much?

How good or bad would that idea be? Or is it possible in the end?!

Sounds good

0.5A for the card and approx 0.5A per device is required - 5V @ 1.5A

On the card specs says that it needs "2.1/5mm center positive DC jack connector".

I have only 2.1/5.5mm and could not find the 2.1/5mm!!!

Will this connector fit, or, where I can find the 2.1/5mm?

2.1/5.5 will work too

Cheers,
Marcin

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#48 Marcin_gps

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Posted 25 December 2016 - 11:06 AM

The JCAT USB Card FEMTO is back in stock! All pre-orders will ship this week.

Merry Christmas!

Best regards,

Marcin

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#49 kaka

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Posted 30 December 2016 - 04:28 AM

Just wondering if anyone has compared running a JCat usb card off a LPS-1 ultracap supply in place of a JCat battery supply?

Linear+battery power supplied WS 2019 server - Jplay Femto, AO 3.0, Fideliser - Jcat XE USB board+Optimo Duo - JCat Sign.USB - Chord MScaler- Stereolab/Blackcat Tron spdif - Chord Dave

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#50 Marcin_gps

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Posted 30 December 2016 - 11:51 AM

Ask Elberoth on Computeraudiophile / Whatsbestforum. He has both

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#51 kaka

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Posted 01 January 2017 - 12:27 AM

Will do, thanks very much

I will order a femto card at some stage

I've been working on the Mutec reclocker - it runs off a linear supply now, and the spdif parts in the Lampizator have been swopped out for genuine 75 ohm versions

It sounds radically better then the old Lampi usb input board (they offer a super clocked version now)

Linear+battery power supplied WS 2019 server - Jplay Femto, AO 3.0, Fideliser - Jcat XE USB board+Optimo Duo - JCat Sign.USB - Chord MScaler- Stereolab/Blackcat Tron spdif - Chord Dave

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#52 RubenV.

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Posted 02 January 2017 - 06:57 PM

@Marcin_gps: I've got a PPA dual rail psu, if I would use it to power the card through the LP4 (molex connector) will the card always be "on" if I leave the LPSU on? The reason I am asking is because it can take hours/days for a clock unit to settle so it performs best.

- Case: Streacom FC8 Evo                                           - Harddisk: Intel 520 120GB SSD
- Processor: Intel Core i5 3570T Tray                            - Powersupply: PPA dual rail LPSU + batteries
- Motherboard: ASRock Z77E-ITX                                 - USB/SATA/AES cable: PPAstudio RED
- Memory: Crucial BLT4G3D1337DT1TX0CEU 2X 4GB      - PPAstudio CFreader + DDC
- USB card: PPAstudio pci-express usb3.0 card             

- DAC: dCS Paganini                                                   - Speakers: Linkwitz LX521 + Thor subwoofers

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#53 Marcin_gps

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Posted 04 January 2017 - 07:40 AM

@Marcin_gps: I've got a PPA dual rail psu, if I would use it to power the card through the LP4 (molex connector) will the card always be "on" if I leave the LPSU on? The reason I am asking is because it can take hours/days for a clock unit to settle so it performs best.

Actually we on purpose designed that if the PC is OFF then all internal power supplies are OFF. I did not think that it would be useful for the board to consume power when the PC is OFF. So the PC has to be ON to burn-in the board.

Cheers,

Marcin

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#54 RubenV.

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Posted 04 January 2017 - 11:21 AM

Actually we on purpose designed that if the PC is OFF then all internal power supplies are OFF. I did not think that it would be useful for the board to consume power when the PC is OFF. So the PC has to be ON to burn-in the board.

Cheers,

Marcin

Thanks for aswerring the question Marcin. When the designer does not see a need for the clock to be powered on all the time, it is probably not needed. Can't wait to test out the card tomorrow

- Case: Streacom FC8 Evo                                           - Harddisk: Intel 520 120GB SSD
- Processor: Intel Core i5 3570T Tray                            - Powersupply: PPA dual rail LPSU + batteries
- Motherboard: ASRock Z77E-ITX                                 - USB/SATA/AES cable: PPAstudio RED
- Memory: Crucial BLT4G3D1337DT1TX0CEU 2X 4GB      - PPAstudio CFreader + DDC
- USB card: PPAstudio pci-express usb3.0 card             

- DAC: dCS Paganini                                                   - Speakers: Linkwitz LX521 + Thor subwoofers

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#55 SIMA66

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Posted 04 January 2017 - 04:29 PM

Does the card work in the opposite direction?

Can I connect the USB external CD player into the card and get better result than connecting into the MoBo?

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#56 Marcin_gps

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Posted 04 January 2017 - 05:00 PM

Of course

In fact, some customers use it to connect external USB optical drives for CD ripping..

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#57 Stachu7012

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Posted 04 January 2017 - 10:32 PM

For me, the JCat USB card for CD ripping is a necessity to get "the best" from the music on my CDs. I have been using a card one for more than a year. I power it up with external linear 5V. If you compare the music ripped with and without an USB card – there is no doubt the card makes a difference how the music sounds.

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#58 RubenV.

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Posted 05 January 2017 - 09:08 AM

@Marcin, I saw in the manual that for Windows 8 no drivers are needed. I expect this also counts for WS2012R2, but could you please confirm that?

- Case: Streacom FC8 Evo                                           - Harddisk: Intel 520 120GB SSD
- Processor: Intel Core i5 3570T Tray                            - Powersupply: PPA dual rail LPSU + batteries
- Motherboard: ASRock Z77E-ITX                                 - USB/SATA/AES cable: PPAstudio RED
- Memory: Crucial BLT4G3D1337DT1TX0CEU 2X 4GB      - PPAstudio CFreader + DDC
- USB card: PPAstudio pci-express usb3.0 card             

- DAC: dCS Paganini                                                   - Speakers: Linkwitz LX521 + Thor subwoofers

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#59 Marcin_gps

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Posted 05 January 2017 - 10:42 AM

@Marcin, I saw in the manual that for Windows 8 no drivers are needed. I expect this also counts for WS2012R2, but could you please confirm that?

Correct. You don't need any driver unless you're on Windows 7 or earlier.

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#60 Stachu7012

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Posted 05 January 2017 - 05:35 PM

I think one shall try how Windows Server 2012 "sounds" with and without the driver for the USB card. I have a year exeprience with using the USB card (not the FEMTO - but the previous model) with Windows Server 2012 R2. The sound was better (more open, spacious, detailed, smooth) WITH the driver. The difference is not big, but it is. In a transparent system - it matters.