Coils

Air core coil Mundorf L200, 0.27mH ±2%, 0.07ohm, Ø28xL58mm

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 BS125 feron core coil, 18mH ±3%, 0.59ohm, 1.25mm wire OFC-copper 99.99% with backed varnish wire, feron core (iCore), 106x36xH36mm

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 BS71 feron core coil, 8.2mH ±3%, 0.99ohm, 0.71mm wire OFC-copper 99.99% with backed varnish wire, feron core (iCore), 66x27xH27mm

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 VL236 air core coil, 0.68mH ±2%, 0.11ohm, 2.36mm OFC-copper wire, Ø70xH59mm, with vaccum impregnated wire

Mundorf BS125 feron core coil, 3.9mH ±3%, 0.25ohm, 1.25mm wire OFC-copper 99.99% with backed varnish wire, feron core (iCore), 84x32xH32mm

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 BS180 feron core coil, 1mH ±3%, 0.06ohm, 1.8mm wire OFC-copper 99.99% with backed varnish wire, feron core (iCore), 106x33xH33mm

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.

Air core coil Mundorf BL100, 2mH ±2%, 0.74ohm, Ø22xL58mm, 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.

iCore feron coil Mundorf BS140, 2.2mH ±3%, 0.15ohm, 84x28xH28mm

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.