DietPi Pops & Stutters on Allo USBridge Signature Topic is solved
Re: DietPi Pops & Stutters on Allo USBridge Signature
And yes, the updated USBridgeSig drivers are included in v6.28 and the current RPi images already. Also they will be reinstalled automatically on RPi kernel upgrades. But note that Allo only compiled them for RPi2/3/4, not RPi1/Zero.
Re: DietPi Pops & Stutters on Allo USBridge Signature
Thanks @Joulinar - will do!

Great - thanks @MichaIng - I will get on with making a backup of the O/S SD Card then doing the upgrade.

Once I've done all the above (update to v6.28 and then perfomance options with dietpi-config ) I will do some more listening/testing to verify my issues have definitely been eliminated (likely in about 3-4 weeks, schedule permitting).
Thanks Again!
QNAP HS-453DX NAS with QLMS; cabled Ethernet to Allo USBridge Signature (DietPi+Shanti LPS); USB to Cirrus ESS Sabre 32-bit Reference DAC (Oppo 105D); Tchernov Classic IC to Yamaha Aventage CX-A5000; Van den Hul IC to Focal SM9 monitors.