Jantzen Audio core coil 0.56mH / cylindrical / 0.25ohm / dr.0.7mm Fe 0.021kg / dia.14 length 40mm
Jantzen Audio
Product code: 000-2286
Inductance (mH): 0.56 mH
Coil resistance (Ω): 0.25 ohm
Coil type: Cylindrical core
Jantzen Audio core coil 0.56mH / dr.0.7mm Fe
Jantzen Audio cylindrical core coil Coils from Jantzen Audio - for those who prefer discless core inductors. Cylindrical coils offer high inductances, low resistance and an inexpensive solution for people looking for crossover coils for the woofer and midrange sections. Built on a Permite (not ferrite) core, it provides significantly lower magnetic hysteresis compared to ferrite core coils while providing greater transfer power. The coils are wound with 4N purity copper wire The extremely low DCR offered by these voice coils does not alter the speaker's damping factor or performance loss.
When comparing both types of core coils, most customers choose discless coils, especially if there is little space in the crossover. In terms of sound, there is not much difference between these two types of coils.
Technical information:
class 1B copper wire, insulated with a layer of varnish and coated with a bonding layer - thermo-sintered
tolerance +/-3%
insulating layer: polyurethane with aliphatic polyamide coating
possibility of soldering at temperatures up to 390 °C (8s) without damaging the coating
elasticity: 10% 1 d
breakdown voltage: in accordance with IEC 60317-0-1 (7.8 kV)
All coils are made to order. We offer over 4,000 coils for loudspeaker crossovers. Coils play an important role in loudspeaker crossovers. Inductors do not change the character of the sound in the same direct way as changing capacitors. The role of coils has more to do with efficiency, power transfer and increasing the dynamics of the sound by choosing the right type of coil. As long as the coil is well made of high quality copper, the signal paths will be as they should be. What does it take to get a good audio-grade coil? The most important factor for a good quality inductor is that the copper used is of certified good quality, such as the ETP (Electrolytic-Tough-Pitch) C11000 copper that we use in Jantzen Audio grade copper. Above this class there are no technical advantages and the improvement in sound quality is not proportional to the price. Using a higher grade of copper would make the coils more expensive than necessary.
In addition, winding integrity is a very important factor. At Jantzen Audio, we wind our induction coils (wire or foil) on semi-automatic machines and use "sintered wire" technology to produce wire coils without the need for bobbin stiffening. For foil coils, we have built our own special semi-automatic machines that allow for tight winding and full control of the application of layers and insulation.