The problem:
When an audio signal at approximately -95 dB — essentially near-silence — is sent through the Dante network to this adapter, the output is audibly amplified into crackling noise through the subwoofer. This is not a subwoofer issue, not an amplifier issue, and not a network issue.
How we confirmed it:
We isolated the source by using FabFilter Pro-Q 4 to pass only a narrow low-frequency band at -95 dB. The TiGHT AV adapter produces clearly audible crackling from this signal. Swapping to the original Audinate AVIO Analog Output Adapter 0x2 on the exact same Ethernet cable, same amplifier input, same signal — complete silence. Clean output.
Both TiGHT AV units behave identically, ruling out a single bad unit.
Conclusion:
The TiGHT AV adapter does not pass near-zero signals cleanly. Something in the analog output stage — whether a poorly biased op-amp, an unstable noise gate, or a low-quality DAC with poor linearity at low signal levels — introduces audible artifacts where the original Audinate AVIO produces nothing. For any installation where the signal chain occasionally passes near-silence (live sound, theater, broadcast), this is a serious problem.
At this price point it's understandable to cut corners, but when a budget adapter amplifies noise that the reference device ignores, it is simply not fit for professional use.
Recommendation: Avoid for live sound or any application with a subwoofer or high-gain amplifier in the chain. Spend the extra money on original Audinate AVIO adapters.