Here’s another feedback today from customer who purchased Advanced ROM for DX220. He shared his feedback in Head-Fi forum after using Advanced ROM for a while.

After 10 days more or less of listening after the upgrade to Advanced I only can say that its amazing how just “only” software mod can change SO DRAMATICALLY the overall sound experience, again, amazing. 2 case uses, both under Android, I need to taste Mango after the update but I can state that Android was improved so much that I’m shocked that this improvement could be done, really.

First setup, DX228 + Andromeda S, medium gain, volume 80, FLAC most of them 16 but some others 24 bits, no mp3

– Soundstage better
– Bass dramatically improved, not the typical bom bom but with more clear sub-bass
– Instrumentals with more separations. I started listening the Whiplash BSO and oh god, sometimes I closed my eyes and I thought that I was on the film shoot
– More vocals presence
– I noticed that the mids are maybe those who have benefited the least as a “bad” point

Second setup, DX228 + Fostex TH610, high gain, volume 120, FLAC most of them 16 but some others 24 bits, no mp3

– Soundstage has teleported me to the first row of the concert, amazing
– Bass on this headphones are very nice and I noticed a more “dry” bass and sub-bass not affecting the rest of the frequencies, right on, perfect
– Instrumentals again with more separations, very clear
– Highs and mids both improved, for sure, overall improvement

One absolutely amazing thing that I noticed is the battery, oh my gosh, the last testing was 2 hours of use and the stats went from 100% to 81%, really, this is freaking awesome.

In general for me its more than worth this solution, the free one its quite nice but of course that its very far away from the performance that the enhanced and above all, the advanced one.

PD: I’m not sponsored by Fidelizer nor they didn’t pay me anything for this review

I’m happy to see he shared his feedback with different setup rigs. You can also read his post in Head-Fi’s official DX220 thread too. 🙂