I modified my small speakers M-Audio AV40 so much well they are completely transformed...
I add cardboard cylinder around the tweeter to make easier imaging and directionality toward my listening position... Impressive results...
Then i increased the Internal volume of the small box with the right bundle of 20 tubes( straws for one dollar) i put them in the rear porthole... Results as astonishingly good no drawbacks...It is simple Helmholtz design applied... Now i have more bass depth , more extension too... The explanation is to be look for in any basic acoustic book...
New speakers completely... They were very well reviewed but now they beat or rival most headphones in near listening save my AKG K340 for sure...
Audiophile results dont equate only with "price tag" ... It is acoustics basic for me....
Think twice before qualifying my acoustic experiments by "tin foil hat"... What i did is based on acoustics not foolishness... 😊
No designer can sell a small box with tubes going out at the rear and tube going out in front... I can....
These are my third and fourth systems. Number 1 and 2 are still much more costly, but I have been successful downsizing all around in recent years accordingly as a result of not being afraid to first try less expensive and easily returnable things that do not necessarily have the high end audio industry "blessing". Meaning I am less prone to simply throw money at the problem than in past years, which is a positive development.