Sennheiser HD25-1 Balanced

Seeing how the HD650 was transformed by the Balanced Beta22, just for kicks I plugged the HD25-1 to the Beta22 using the same balanced…

Sennheiser HD 25-1

Sennheiser’s HD25-1 is perhaps a one of a kind headphone, with no other manufacturer offering anything similar to what the HD25-1 has.