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Mundorf BL100 air core coil, 8.2mH ±2%, 1.69ohm, 1.00mm 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.

Mundorf L125 air core coil, 3.9mH ±2%, 0.75ohm, 1.25mm 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.

Air core coil Mundorf L140, 18mH ±2%, 1.72ohm, 105x93xH79mm

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 LL45 litz wire air core coil, 2.2mH ±2%, 0.66ohm, 7x0.45mm OFC-copper wire, Ø77xH28mm, with backed varnish wire

MCoil Hepta Strand coils unite the tonal clarity, beauty and distortion-free performance of air core coils with the stereophonic spaciousness of tightly-wound coils, alongside the harmonious-warmth and splendid brightness of strand copper wire.

Mundorf BS180 feron core coil, 4.7mH ±3%, 0.15ohm, 1.8mm wire OFC-copper 99.99% with backed varnish wire, feron core (iCore), 130x37xH37mm

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.

Transformer core coil Monacor LSI-22T, 2.2 mH, RDC 0.1 ohm, fil 1.2 mm, 60 x 50 x 42 mm (EI-57)

Self sur fer Monacor LSI-22T, inductance 2.2 mH, fil de cuivre ø 1.2 mm, Rdc 0.10 ?, courant de saturation 7.9 A, dimensions 60 x 50 x 42 mm (EI-57) puissance sous charge 8/4 ohm: 500 WRMS /250 WRMS

Mundorf CFC16 air copper foil coil, 3.3mH ±2%, 0.74ohm, 17x0.07mm OFC-copper wire, Ø81xH24mm, with backed varnish wire

La bobine série CFC est une self à air constituée d’un enroulement de feuille de cuivre OFC 99.99% séparé par une feuille d’isolation polypropylène de 0.02 mm. La partie centrale est percée pour la fixation.

Mundorf BL71 air core coil, 8.2mH ±2%, 3.05ohm, 0.71mm OFC-copper wire, Ø58xH28mm, 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.