exaU2I - Multi-Channel Asynchronous USB to I2S Interface

[Bunpei]

Has anyone tried this product?

SuperSpeed USB 3.0 Over Fiber Optic Expansion System:Amazon:Electronics

[exa065]

Thank you for the link, Bunpei. Unfortunately this device costs as much as a good USB to I2S interface. exaU2I solves the ground isolation issue. There is no need to go overboard on one particular feature. Look at the exaU2I measurements - www.exadevices.com > exaU2I > Measurements. There is no trace of USB induced noise. There is no evidence if the impact of GMR phase noise either.

-Best,

exa065

[Telstar]

Hi George,

I'm checking the beginning of the thread, and I would like to know if you have abandoned the development of a WDM or it's just posponed for the future?

Also, when you'll move to usb3 (likely next year or even later), will it be possible to upgrade the board or a new pcb will be needed?

[phi]

Originally Posted by Telstar

Hi George,

I'm checking the beginning of the thread, and I would like to know if you have abandoned the development of a WDM or it's just posponed for the future?

Also, when you'll move to usb3 (likely next year or even later), will it be possible to upgrade the board or a new pcb will be needed?

Just curious, why do you need USB3? The exa-unit can already handle 32bits and 384kHz with 8 channels. Need more?

(( Per

[Telstar]

Originally Posted by phi

Just curious, why do you need USB3? The exa-unit can already handle 32bits and 384kHz with 8 channels. Need more?

(( Per

Yes, 8 channels @32/705khz each.

[5th element]

Originally Posted by Telstar

Yes, 8 channels @32/705khz each.

Why?

[Telstar]

Originally Posted by RayCtech

By the way I use Lovoltech LU1014D JFET´s in my regulators even in my class A power amplifiers as they work "full function" with as little as 0.6 to 0.8 voltage drop over them...

Nice, i can finally find a use for my stock of lovoltechs ))

[exa065]

Originally Posted by Telstar

Hi George,

I'm checking the beginning of the thread, and I would like to know if you have abandoned the development of a WDM or it's just posponed for the future?

Also, when you'll move to usb3 (likely next year or even later), will it be possible to upgrade the board or a new pcb will be needed?

At the present time the WDM development is on hold. USB 3 will require completely new design.

The reason that there is no new development around exaU2I is that we've reached the point of diminishing returns. WDM will appeal to new customers, but in our experience there is no quality improvement compared to ASIO. It is just another, more difficult and more risky way of doing the same thing. Doubling the sampling rate for two channels is possible within the bandwidth of USB 2, and also with USB 3. A 768 kHz device will appeal to a very limited group of owners of very high-end systems.

With other words exaU2I is not the bottle neck in our systems.

[greggp]

Originally Posted by exa065

At the present time the WDM development is on hold. USB 3 will require completely new design.

The reason that there is no new development around exaU2I is that we've reached the point of diminishing returns. WDM will appeal to new customers, but in our experience there is no quality improvement compared to ASIO.

Remind me/us, how you can listen to lossless multichannel audio using Windows Media Center, Windows Media Player, Arcsoft TMT, VLC or MPC-HC with an ASIO driver.

Isn't there another application that you have to run that supports multichannel playback with these non-ASIO applications? How is that working, are there any problems with audio/video sync?

[Telstar]

The audio router application that exa recommends costs 50$ and it's limited to 192khz. The biggest advantage of exa2ui for me is the higher samplerate it supports.