Alright, here we go; First off I have a Magni 2 / Modi 2 Uber with mostly FLAC from MediaMonkey. I Am going to compare the differences to Straight out of the Laptop AUX out.
No need to discuss design/build/options/whatever because there are already reviews for this combo. What i will mention is that i needed to use a 4pole 3.5mm FEMALE to 3-pole 3.5mm MALE adapter before using the 3.5mm to 1/8" plug to get the sound to come out fine.
On to the sound: I'm evaluating with a handful of different tracks from hip-hop, classic rock/pop, metal, hard rock,punk, and acoustic tracks.
I Have always loved the K545s for the tiny extra low end they provide while still being very clear, detailed and having very good sound-stage and imaging. But i think this combo offers a number of improvements even for the easy to drive 32 Ohm Drivers
Bass: Impact is slightly improved, but most improvement here is in the detail and texture, cleaner sound overall
Mids: biggest improvement is from a semi noisy soundcard to a dead quiet combo, this HUGE change provides a very clean, natural and articulate mid range.
Treble: High end is again much clearer but also more dynamic and i feel as though the high end of cymbals has a more natural and realistic sound to it.
Soundstage and Imaging are slightly improved for a more engaging and immersive sound.
This combo also has so much power I'm a bit worried as to what my happen to my ears or headphones if I crank it
Overall i am extremely happy with this combo as it has improved everything i've thrown at it from my K3003 IEMs to K712s. That being said, this is also a $250 combo (I got the Uber for its added performance and flexibility) without cables and the fulla can be had for $80 which is a great little device and probably a good option to keep in mind for it spectacular price to performance ratio.