Oh yes, I already find myself looking forward to listening sessions devoted to just that. That is a really good way to put it: The emotions
ease their way into the music.
Well, overall the smoothness of the detail is the biggest difference between the A4 and Trinity products. The pm4, being the most extreme example, was basically a steroidal drink of music every time. It felt like being infused with redbull with every song. I couldn't really relax to music that was even meant to be chill because the detail was all overly forward. It's nice to see trinity redo/release the Master as quick as possible because the pm4 really sounded unrefined and even like an unfinished product.
I prefer the balance of the A4, especially since I'm partial to a natural sound signature, but I still love the delta vII sound, especially with the gold filters and am looking forward to the Atlas Delta, hoping it keeps up with the delta tradition. But the phantom lineup of trinity has just been too v-shaped for me with too many prominent peaks in the upper frequencies and treble spikes that take away from a good balance the likes of which I heard in the delta vII. I felt the phantom lineup sacrificed quality of detail for overall presence of detail. When I listen with the A4, it's like I can finally relax and let go to what ever music is playing... from contemporary classical to alternative, pop, EDM, electronica, rock, folk... you name it, I can let go to the music much easier and let if flow through me. Like
@1TrickPony said, the ease of the emotion is really something noteworthy about the sound signature of the A4 and it's something I do love about it.
I am very happy with the the A4 and see myself not looking for something to top it. With the trinity products, they left me wanting better balance and refinement of detail. These are the salient differences for me when it comes to these two companies.
I do think trinity audio has immense potential and I am looking forward to what they can do, but it's really nice to have this A4 that doesn't seem like it could use anymore tweaks. I feel LZ Aced this product. I've tried maybe 4 filter combinations and it's a 5/5 stars with a comfortable fit. And I very much look forward to trying out new combinations and discovering new variations of balance.