I did a contest with the local store on a write-up for the 1840.
Notably I find them to be good rock n roll headphones but are peaky at the mids and low treble with kind of missing top end altogether. I do agree that technically they lose to the big three though.
"Sadly the drivers themselves never striked me as fast and extremely detailed unlike the SRH940s or AKG Q701. Those expecting accurate imaging though maybe also be disappointed as I never once felt the SRH1840 had as good positioning as even the Sennheiser’s HD6XX, Beyerdynamics DT880 or the AKG Q701."
There are those that will disagree with me but these are my opinion of them and I hope my impressions capture their tonality in words.
full review impressions here(inb4 shameless advertising)
Edited by firev1 - 9/17/12 at 7:55am