v6.0 firmware currently on my Mixpre6
I would recommend the latest versions. There was some power management trouble when powered via USB-C in non ideal conditions and they have improved it.
Ah thanks for the tip. Been thinking it's time to bump it up and this is a genuine reason to do so.
Hey when I went there, they have a specific ASIO driver for windows which adds multi channel support.
An ASIO® driver (v) for the MixPre Series by Ploytec is now available for download.
With USB Audio Class 1 devices — that is, Windows-based computers without an ASIO driver — the MixPre Series audio recorders are capable of sending two channels of audio (L, R) and receiving two channels of audio via USB to/from the computer.
This software driver adds ASIO support in Windows OS for the MixPre-6 and/or MixPre-3. With the ASIO driver installed, Windows-based computers become USB Audio Class 2 devices, which means the MixPre-6 can send eight channels (1-6, L, R) to the computer and receive four channels from the computer via USB, while the MixPre-3 can send five in and receive two out. The ASIO driver for the MixPre Series allows for low-latency operation and max sample rate for USB audio up to 96 kHz on Windows computers. This driver supports Windows 7 and later, both 32- and 64-bit versions.
For stable performance, Sound Devices highly recommends that your Windows computer is installed with the latest Intel USB drivers even if your computer is not Intel based. These drivers are not included in Windows automatic updates. For details on how to manually install these drivers, refer to this Technical Document.
OOH heads up, it's a double whammy!
7. When upgrading to firmware version 7.0 or higher from any version lower than 6.0 the firmware installation process will need to be completed twice. After the first installation is complete, the MixPre II will prompt you to start the second installation process.
Also, I had not run the Wingman app in several iOS updates but when I tried it after the firmware update, I had to quit the Wingman app and run it again before it displayed levels properly, even though it was connected and reporting the serial number of the Mixpre6. Oh Geez, it only works about 2/3 of the time. It doesn't show levels on Wingman reliably now. Once you use the About function, the levels don't come back until you quit and restart the app. Oh never mind, I was disconnecting the device from wingman every time I use the About function to identify. Confusing app for something which has such limited functionality!