Hi fellow DT-150 users, I shall proudly present my DT-150 after spending a decent amount of time with it. I had made several pad-rolling attempts:
1. The original pad maintained the "huge" sound, but made the headphone sound a bit too V-shaped and boxy for my taste. In addition, I live in a tropical country and the pad sealed really good, so it actually made my ears sweat like crazy.
2. I could not get the velour pad of the DT-100, so I accidentally bought the leather pad instead. It did not solve the problem, since it made the headphone sounds "mushy"; the bass is soft and without impact.
3. I had bought a velour pad of SRH-1840 according to recommendation of someone in this thread and it did a decent job, as it balanced out the sound quite a bit, but had shallow fit and reduced that "huge" sound.
4. At last, yesterday, I got my hand on one of those Acoustic Research AR-H1 leather pad (velvet on the earcup) and it seemed to be the best at the moment. It balanced out the sound, kept that "huge" sound, rumble bass, fitted decently and did not heat up that fast (due to the velvet, allowing the heat to escape).
As you can see in the picture above, the Beyerdynamic DT-150 is fitted with Acoustic Research AR-H1 leather pad (velvet on the earcup), re-cabled with Duelund 26AWG pure silver, single-core, Viablue 3.5mm plug. It is powered by a MYTH Audio (Vietnamese local brand) Rosmerta, a desktop R2R, AD1862 DAC and a Dynalo MKII Single-ended, connected by a VH Audio UniCrystal OCC Copper RCA.
The Duelund cable tamed and refined the high-mid and treble decently. The AD1862 DAC brought an airy, natural presentation, rivalling Hugo 2 in technicality but less "dry", while the Dynalo MK2 headamp expanded the soundstage, improved on the high frequency and added impacts to the low section.
Overall, I could not be happier with my DT-150, as it would continue to be my go-to headphone at home for a long time. At office, my preference remained to be the DT-250 though.
Happy listening, and stay safe!