09-27-2024, 10:04 PM
The USB speed on the DAC doesn't matter, it's about having the drive on the faster port.
24/192 PCM is under 10Mbit so should stream over USB1 (I don't have a USB1 device to test that) so the DAC doesn't benefit even if the port is technically USB3, but a drive will if it is USB3 so "plug DAC into USB2 and drive into USB3" is harmless at worst and potentially makes a big difference to drive operations.
FWIW, the D90SE is a USB2 device:
When connected to a USB source, the DAC reports "2.82MHz" as it's sample rate.
24/192 PCM is under 10Mbit so should stream over USB1 (I don't have a USB1 device to test that) so the DAC doesn't benefit even if the port is technically USB3, but a drive will if it is USB3 so "plug DAC into USB2 and drive into USB3" is harmless at worst and potentially makes a big difference to drive operations.
FWIW, the D90SE is a USB2 device:
Code:
T: Bus=01 Lev=02 Prnt=02 Port=03 Cnt=01 Dev#= 5 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 2
P: Vendor=152a ProdID=8750 Rev=01.88
S: Manufacturer=Topping
S: Product=D90SE
C: #Ifs= 4 Cfg#= 1 Atr=c0 MxPwr=0mA
I: If#= 0 Alt= 0 #EPs= 0 Cls=01(audio) Sub=01 Prot=20 Driver=snd-usb-audio
I: If#= 1 Alt= 0 #EPs= 0 Cls=01(audio) Sub=02 Prot=20 Driver=snd-usb-audio
I: If#= 2 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none)
I: If#= 3 Alt= 0 #EPs= 1 Cls=03(HID ) Sub=00 Prot=00 Driver=usbhid
E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=16msWhen connected to a USB source, the DAC reports "2.82MHz" as it's sample rate.
