2. misc-audio
  3. 1176652205

Dealing with HVAC vent air flow noise?

We've just replaced our split HVAC system with upgraded capacity and higher quality/efficiency components. One aspect of the upgrade is a 1/2 ton higher capacity air handler with a multiple speed blower. While the system is much quieter overall than the previous one, during the heat of the day when the air flow is ramped up to it's greatest arflow, I notice more air noise than before coming from the vents. It seems that if a larger outlet or an additional outlet were installed, resulting lower air volume/friction/turbulence would reduce noise in the listening area. Have any of you dealt with a similar problem? What worked for you?
photon46

Showing 1 response by richards

richards
145 posts
 
A couple things I've done to help in my room:
Added another vent on the line.
Cut the blades out of the vent cover so it's all open except the frame around the hole. Looks a little funky but helps a lot, and I don't even notice it anymore (who looks at the ceiling, right?).
Have two air returns in the room.
Switched to digital amps (Tact and Bel Canto). My previous Pass monos only lasted a year when I moved to NC.
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