Sennheiser PMX 40 AND HD 457 AND HD 437 -- Audiophile Headphones
This page provides function details of the Sennheiser PMX 40 AND HD 457 AND HD 437 headphones. Please see the Frequency Response and Specifications page for more information.
This page provides function details of the Sennheiser PMX 40 AND HD 457 AND HD 437 headphones. Please see the Frequency Response and Specifications page for more information.