I recently bought a Topping DX3 Pro+ and I am happy with it. However I mostly use it on Linux with pipewire, I have pipewire setup where the Topping will automatically switch the sample rate to match what ever the source is. This is working fine and the LCD screen confirms the sample rate does switch, but every time the sample rate switches there is a short 1/4 second delay that is extremely annoying. I contacted Topping and they said this is normal behavior and cannot be fixed. I now have it set at a static sample rate of 48000mhz. I know my naked caveman ears can't hear frequenices that high anyway so this is a non-issue. However it is extremely disappointing since my onbaord soundcard and my xonar dx can switch sample rates perfectly fine. My question is do all USB/DAC's have this audio delay on sample rate switching or can anyone confirm a DAC/AMP that doesn't have this problem?