Some headphones are hard to drive. Some sound better with SS amps...some sound much better with tubes. Would it not be a good idea for headphone manufacturers to include an area on their website that recommends certain amps ( if not by make and model at least by specifications and type ) for their headphones? Or, if dedicated ones weren't necessary then to mention that too. I'd be curious to hear from the AKG themselves, what type of amp they'd recommend for the K702 for example...specs,etc, and even a real make and model recommendation. Companies could update info easily enough on their site when certain amps becamse obsolete, or better ones became availalbe. Thoughts?