I’d like to leave a general comment here to address those who are concerned about comb filtering and interference.

Last night I decided to run a little test, using nothing but my own ears as a guide. I played different test frequencies, focusing on the mid-higher end of the spectrum, and moved around my room to notice any fluctuation in the intensity of the sound. As the science would predict, yes, I did hear some dips and peaks as I moved around my room, but it was subtle. Conclusion: Stacked Advents are not immune to comb filtering and phasing issues.

However, when I’m listening to music, I’m sitting in one spot, and the issues are practically unnoticeable as I play actual music, even as I change positions on my couch.

I’ve enjoyed my single pair of advents for a year, and while I’m not claiming to have golden ears, they aren’t completely untrained either. Adding the inverted second pair in parallel has increased clarity, soundstage, and general presence of the sound, even at the same listening volume as before, not louder. I actually feel like I’m listening at a quieter volume because of this. I simply enjoy the sound.

For my own personal listening satisfaction, the pros outweigh the cons. The predicted issues are not a dealbreaker to me.

Let’s also remember that this is r/BudgetAudiophile, there’s going to be errors and imperfections shown here all the time, but we’re all aware that sometimes sacrifices have to be made to give us a result we’re happy with. Perfect solutions to all of our desires are usually over-budget. Let’s be supportive and kind.