With scientific training, I’m very much a believer in double blind tests. Many/most/all humans have a hard time separating portions of their perceptual experience. It’s like saying that a Ferrari is faster because it’s made from carbon fiber and Italian “zest” – when a cheaper Mustang can actually be much faster on a race track.
I have accidentally fooled myself after forgetting I wasn’t using the $400 THX AAA 789 but actually was on a $100 Loxjie P20 (plus $30 tube upgrade). My perceptions of the same equipment also change with fatigue and mood.
Yes, test for yourself!
Given the many For Sale ads on audio websites and Ebay/Craig’s List, many people churn through equipment pretty fast. Me too. If you buy new you’ll lose 30%, but it you buy used or use the Headphones.com trial program, you basically just lose shipping costs.
First, get a true amp. The main change will be greater definition and better highs/lows. Second, a good DAC can further extend the range and clarity. With too little power/current the drivers are straining to function and deliver sound.
Bass can be strong and flabby (not my thing) or tight and precise. Some genres are heavily produced and modified in the studio too.
I bought at least 5 balanced cables for my headphones when I switched from single to balanced amps. This followed buying a Focal Elex that arrived with factory single plus balanced cables. The balanced cable delivered a big improvement, so everything else got a balanced cable too.
I spent $30 to $100 per cable (Ebay, Amazon, etc), but others spend into the thousands of dollars for pure silver, etc. Some of my balanced cables added little or no value (i.e., Audeze LCD-2C), while others were cheap but astounding (i.e., Sennheiser HD-600).
In my experience the main value is in removing background noise from dynamic driver headphones. They reduce hiss and make audio details appear. It’s way more obvious with vocals and acoustic music than EDM, metal, or hip-hop.
In audio you will disagree with half of the community, as they have polar opposite opinions. Be aware and be tolerant.