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Mundorf BL71 air core coil, 1.2mH ±2%, 0.99ohm, 0.71mm OFC-copper wire, Ø40xH20mm, 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.

Ferrite core coil Monacor LSIF-470/1, 4.7mH, 0.65ohm, Ø30 x 26mm

Bobine sur fer Monacor LSIF 4.7mH, Rdc 0.65ohm, diamètre 30 mm, hauteur 26 mm, conducteur diamètre 0.65 mm

Mundorf BL125 air core coil, 3.3mH ±2%, 0.69ohm, 1.25mm 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 L71 air core coil, 10mH ±2%, 3.38ohm, 0.71mm OFC-copper wire, Ø58xH28mm

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 L140 air core coil, 4.7mH ±2%, 0.77ohm, 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 BL140 air core coil, 0.68mH ±2%, 0.23ohm, 1.40mm 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.

Mundorf aronit core coil, BA140 1 mH, with backed varnish

Air core coil Monacor LSIP-22, 0.22mH, 0.15ohm, Ø48 x 19mm

Self à air Monacor LSIP-22, inductance 0.22 mH conducteur ø 1.2 mm, puissance 300 WRMS, Rdc 0.15 ?, dimensions ø 48 mm x 19 mm