A lot of suggestions offered. Unfortunately the bulk of them will NOT bring about a significant improvement. In fact unless the room acoustics are sorted the small but worth while potential of some of these suggestions will be lost in your room which leads people to refer to some as ’snake oil’Many audio devices injustly qualified as"snake oil" are not working well because of the lack of controls in acoustic of the room....
No upgrade rival acoustical controls....
Electronic design upgrade dont lit a candle compared to acoustic controls in audio.....
But all magazines sell new "improved" electronic design not acoustic method....
At best they speak time to time about passive acoustic materials but passive treatment is NOT non electronic active controls, and these 2 are NOT electronic active controls either and must not be confused....The road is not a simple linear way....Ears reign supreme here, governing these correlations between passive treatment and the two kind of active controls; measuring device are only tool under ears supervision....
On my under 500 bucks system i can hear the vibraphone aural tone hues changing dynamic decay with each passing tone and the sound dont come from my speakers, why?
Not because my amplifier is a Sansui, not because my speakers are Mission Cyruss , not because of my Dac....They are only good products among many others....
Because acoustical controls are in place.... But it is VERY important dont forget mechanical and electrical controls.....Unbeknownst to most these 2 controls are on par in transforming power with acoustical controls.... All these controls i called audio system embeddings controls 😊
I only underline here the importance of the last post by lemonhaze....