Spiderant wrote:
But other than price, the Grados do have another advantage: Unlike the
Sennheiser HD 580s, the Grados are low impedance (32 ohms as opposed to 300
for the Sennheisers) which makes them easy to run off of portable CD units.
Most of the newer model portable cd players don't put out the same volume as
older players (to conserve battery life?) and seem to need more sensitive
headphones.

It's an EU directive thing. Instigated by the French, I'm told.

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