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Q on the newly announced USB-C interfaces
Posted: Fri Jan 25, 2019 11:33 am
by dgkenney
I don't keep up with everything so please lend me a hand and let me know what's what with the new interfaces.
Are the following statements true?
1) USB-C 3.1 is NOT the same as Thunderbolt
2) Although the USB-C 3.1 is faster than previous USB, it is not as fast as Thunderbolt
3) Consequently, Thunderbolt should provide less latency than USB-C 3.1
4) The new Presonus USB-C 3.1 interfaces are backward compatible with USB 3 or 2 and can be used with older PCs but will not provide the speed enhancement unless the PC either has 3.1 native to the motherboard or an add-in card on a desktop
5) Thunderbolt on a PC only works if it is native to the motherboard - add-in cards don't work
Re: Q on the newly announced USB-C interfaces
Posted: Fri Jan 25, 2019 3:22 pm
by Skip Jones
1. Physically port compatable but not TB.
2. True
3. True
4. True
5 True, a lot of folks don't get this
6. Wait, there was no six
You obviously done your homework
Re: Q on the newly announced USB-C interfaces
Posted: Fri Jan 25, 2019 4:51 pm
by shanabit
dgkenney wrote4) The new Presonus USB-C 3.1 interfaces are backward compatible with USB 3 or 2 and can be used with older PCs but will not provide the speed enhancement unless the PC either has 3.1 native to the motherboard or an add-in card on a desktop
4. In regards to this, according to Dom at the NAMM show these interfaces are using
USB 2.0 transmission, only diff is they are using the USC -C connection port.
I was hoping they were using the USB 3.1 Gen 2 transmission but nope, its the same old USB 2.0 in last years model with a diff USB-C port
Re: Q on the newly announced USB-C interfaces
Posted: Fri Jan 25, 2019 7:58 pm
by dgkenney
shanabit wrotedgkenney wrote4) The new Presonus USB-C 3.1 interfaces are backward compatible with USB 3 or 2 and can be used with older PCs but will not provide the speed enhancement unless the PC either has 3.1 native to the motherboard or an add-in card on a desktop
4. In regards to this, according to Dom at the NAMM show these interfaces are using USB 2.0 transmission, only diff is they are using the USC -C connection port.
I was hoping they were using the USB 3.1 Gen 2 transmission but nope, its the same old USB 2.0 in last years model with a diff USB-C port
Aww! Disappointing
Re: Q on the newly announced USB-C interfaces
Posted: Sat Jan 26, 2019 12:01 am
by darrenporter1
here is a great writeup on usb and thunderbolt as it applies to us...
https://www.sweetwater.com/insync/what- ... musicians/The answers to some of your questions are more involved than just simple "true or false."
Re: Q on the newly announced USB-C interfaces
Posted: Sat Jan 26, 2019 12:05 am
by Skip Jones
Thanks for sharing this link. There is a lot of confusion out there. They PHYSICALLY share the same port but two different animals. This article explains it pretty well.
Re: Q on the newly announced USB-C interfaces
Posted: Sat Jan 26, 2019 12:35 am
by darrenporter1
Yeah and if it's true these interfaces are not true USB 3.1 then that is a letdown. I was actually looking at them pretty seriously.
But honestly, USB 2.0 is plenty fast enough for probably 99% of audio users out there.
Re: Q on the newly announced USB-C interfaces
Posted: Sun Jan 27, 2019 12:07 pm
by AndySweet
RME Babyface use USB 2 so it's possible they have improved drivers to equal the RTL of those units maybe I'm asking too much but I would jump on one if that was the case.
Re: Q on the newly announced USB-C interfaces
Posted: Mon Jan 28, 2019 3:49 pm
by robertfrench3
If you compare the technical specs of the new boxes to the old, they seem to be exactly the same. Not surprised about USB 2.0, as that is how it works on the silver 2|4 w/ USBC that was already out. This looks to be just a connector change and cosmetic update.
Re: Q on the newly announced USB-C interfaces
Posted: Mon Jan 28, 2019 4:29 pm
by darrenporter1
I was wondering if that wasn't the case... what's the point of going USB-C if it's not also going to USB 3.1?
If that's true then the price-drops on the silvers you can get now would be a great deal.
Re: Q on the newly announced USB-C interfaces
Posted: Wed Jan 30, 2019 9:25 am
by shanabit
robertfrench3 wroteIf you compare the technical specs of the new boxes to the old, they seem to be exactly the same. Not surprised about USB 2.0, as that is how it works on the silver 2|4 w/ USBC that was already out. This looks to be just a connector change and cosmetic update.
New black face and a USB-C port, that is all
Re: Q on the newly announced USB-C interfaces
Posted: Sat Feb 02, 2019 1:43 am
by AndySweet
shanabit wroterobertfrench3 wroteIf you compare the technical specs of the new boxes to the old, they seem to be exactly the same. Not surprised about USB 2.0, as that is how it works on the silver 2|4 w/ USBC that was already out. This looks to be just a connector change and cosmetic update.
New black face and a USB-C port, that is all
Re: Q on the newly announced USB-C interfaces
Posted: Sun Jun 23, 2019 2:22 pm
by Benoni
I have an 1824c and it's really a great interface. I can get very low latency (not even noticeable) and the pre-amps are great.
We have a full review of the unit here -
https://youtu.be/MnH_j65MUb8The truth is USB 3.0 doesn't really add anything for audio. It would allow higher bandwidth, but it's not going to drastically reduce latency. You're still dealing with the USB stack and isochronous data.
Thunderbolt is a different story because it communicates with the CPU in a different manner.