“Machine Gun sound while music playing”
Edit: “If, by machine gun sound, we mean the music is still playing but sounding like a machine gun, then count me in. It’s happening, outputting via → my DAC->Holo Spring 3 KTE”
I saw this issue happening in another post:
My setup
Spring L3 KTE 
DSD512x48 / DSD1024x48
ROCK → Cisco Unmanaged Switch → deskmini b660 i913000 Unbuntu HQplayer Embedded → Raspberry NAA → Intona → Spring L3 KTE → ProAc DB1 
DAC-60 DSD256
ROCK → M2 Macbook Pro (HQplayer) → Cisco Unmanaged Switch → Raspberry NAA → Intona → Accuphase DAC-60 → Accuphase E-280 → ProAc DB1
ifi NEO iDSD DSD512x48 
ROCK → Mac Mini M1 (HQplayer) → Cisco Unmanaged Switch → GTEK-Mini PC NAA → ifi NEO iDSD → Bayerdinamic T2
In my case how I solved the issue:
Removed the “Intona” on the Holo May it seems it’s defective, this fixed the issue, no single “machine gun” noise now. The DAC-60 has also an Intona but this one is not defective.