Mundorf BL71 air core coil, 4.7mH ±2%, 2.19ohm, 0.71mm OFC-copper wire, Ø58xH18mm, with backed varnish wireThe BL series from Mundorf uses the same coils as the L series but with the addition of a stabilization varnish considerably reducing electromagnetically induced vibrations. If your passive filter concerns a high-end speaker, the choice of a BL coil instead of an L coil is a relevant choice because it directly impacts the listening quality. No review for this product, be the first to place your review. |