I tested the new firmware and driver on the DI V3 even though it's meant for the DACs only. Here's the feedback I sent to Kingwa about this.
"Dear Kingwa,
Just want to give feedback on the new USB32 firmware and driver 2014.
I install the firmware on the DI V3 supply SPDIF to the DAC19DSP.
1. After install, USB32 and driver 2014 works in Windows 7 64 bit.
2. Playback with Jriver, Foobar and Winamp works with WASAPI
3. Playback with with JRiver, Foobar and Winamp do not work with ASIO. There is no sound.
4. There is no selection for 32bit or 24 bit on the VIA ASIO control panel.
Overall, playback on the WASAPI with new firmware and driver, sound is very good, with very deep bass and sparkling trebles. Not tiring to listen to.
However, I uninstall the driver 2014 and install the old USB32 driver v2. It still works and in the VIA ASIO Control panel, there is now selection for 32 bit or 24 bit for ASIO. I select 24 bit.
Now, ASIO playback works in JRiver, WASAPI and Winamp.
It seems the new driver 2014 default playback in ASIO is 32 bit and cannot select 24 bit. The sound quality however, is a bit more smoother and bass is less interesting compare to the new driver.
I like the sound on the new driver. There is much improvement. But I need ASIO playback.
Will there be plans to make the new driver and ASIO work on the DI V3?"
I must say the new driver and firmware are improvements over the previous versions, with deep, resonant bass, less abrasive and open trebles with an opening up of the soundstage. Seems to have a deeper, and higher opening up of the soundstage. Very 3D quality.
When I use the earlier driver V2 on the new firmware, the ASIO works if I select 24 bit on the VIA ASIO Control panel. However, there is a slight drop in sound quality. Playback via WASAPI reveal a smoothing over of the trebles and shrinking of the soundstage. There is still more bass compared to the old firmware but it is less resonant and slightly boomy.
I really wish the issue is fixed for the ASIO so that this can be used on the DI V3.
In the end, I reverted back to firmware # 11 and Driver V2 for the DI V3 just to be safe but really do missed that improvement in the sonic presentation.