Coils

Air core coil Mundorf BL71, 2mH ±2%, 1.31ohm, Ø20xL40mm, with backed varnish

The 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.

Mundorf BL125 air core coil, 5.6mH ±2%, 0.95ohm, 1.25mm OFC-copper wire, Ø77xH28mm, with backed varnish wire

The 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.

Mundorf L71 air core coil, 18mH ±2%, 4.77ohm, 0.71mm OFC-copper wire, Ø70xH29mm

Mundorf's L series uses a 99.99% solid OFC round copper conductor, specially developed for high quality filtering. The winding stand is made of glass fiber reinforced plastic. The L-series coil is the standard for quality passive filtering.

Mundorf BL140 air core coil, 1.2mH ±2%, 0.31ohm, 1.40mm OFC-copper wire, Ø70xH29mm, with backed varnish wire

The 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.

iCore feron coil Mundorf BS140, 1mH ±3%, 0.09ohm, 84x27xH28mm

Mundorf's BS series uses a solid 99.99% OFC copper round conductor stabilized by varnish, wrapped around a rod-shaped iron-silicon alloy core. Each end of the stick is fitted with a hole for attachment.

Mundorf BH140 aronit core coil, 2.7mH ±3%, 0.18ohm, 1.40mm OFC-copper wire, Ø51xH51mm, with backed varnish wire

MCoil Drum-Core backed varnish coils made from oxygen-free copper (OFC) round-wire have been developed for mid, low and parallel applications for which compact dimensions, a low basic distortion level as well as the lowest possible internal resistance and a reasonable value for money ratio are of key importance.

Mundorf L140 air core coil, 8.2mH ±2%, 1.1ohm, 1.40mm OFC-copper wire, Ø70xH59mm

Mundorf's L series uses a 99.99% solid OFC round copper conductor, specially developed for high quality filtering. The winding stand is made of glass fiber reinforced plastic. The L-series coil is the standard for quality passive filtering.

Mundorf H71 ferrite core coil, 2.7mH ±3%, 0.43ohm, 0.71mm OFC-copper wire, Ø26xH25mm

MCoil Drum-Core coils made from oxygen-free copper (OFC) round-wire have been developed for mid, low and parallel applications for which compact dimensions, a low basic distortion level as well as the lowest possible internal resistance and a reasonable value for money ratio are of key importance.