Similar in what way? I wish I could try the 1990s to see how they compare to the 702s, both being open. I've had Sennheiser closed headphones before and the 1770s are comfier and sound better with much better low end. The Sennheisers I had were about a quarter of the price so not really a good comparisonNot a bad shout, always heard good things about Beyerdynamics but never tried any of them, though i've got a feeling they may be rather similar to the AKG's both being studio headphones?