I have been following this thread and picked up a pair of Sylvania GB-5687 and even after 3 days of continous playing I couldn't sit and listen to them. Very etched on top. So much air around voices and instruments is sounded like snakes hissing, although they did settle down from when new, they over exaggerate the highs and midrange in both Modwright pieces in my system.
That's really interesting. My experience with the Sylvania GB-5687, and the experience of two other local Modwright owners is exactly the opposite.
Just goes to prove the axiom that "Your Mileage May Vary".
Thanks to everyone for contributing to this thread. It's a great resource for Modwright owners.

