For myself the DX100 singled ended is the equal to the SR-71B balanced with my HD25-1, DT1350 and Westone 4r. Not much does the SR-71B add to the sound in my opinion except maybe making the sound darker (polite for slower/slightly muddy).
The SR-71B added much better soundstage/imaging to the headphones when using my HP-P1 when I had it. This is also when being used with the iBasso DB2 in the configuration. It was nice using it with the slightly bright DT1350 balanced before but as I am saying now with the DX100 doing its thing so well I do not need the iBasso DB2 and SR-71B in the mix.
Hence, the reason why I am so interested in how the new ALO amp sounds balanced not just single ended?
Edited by slwiser - 5/19/12 at 6:32am