Loudspeaker components Loudspeaker
components
Coils Introduction Coils
Introduction
Coils sorted by inductivity Coils sorted
by inductivity
Audaphon coils Audaphon
coils
Mundorf air coil Mundorf
air coil
Baked varnish air coil Baked varnish
air coil
Hepta Strand coil Hepta
Strand coil
Mundorf CFC coil Mundorf
CFC coil
Mundorf VLCU coil Mundorf
VLCU coil
Silver/gold air coils Silver/gold
air coils
Aronit / P core coil Aronit / P
core coil
Drum / H core coil Drum / H
core coil
i-core coil/ BS coil i-core coil/
BS coil
Transformer core coil Transformer
core coil
Zero Ohm Coil Zero Ohm
Coil
Duelund coils Duelund
coils
Jantzen Wax coils Jantzen Wax
coils
Visaton coils Visaton
coils
more infos on coils more infos
on coils
Coilcalculator Coil-
calculator

 

Calculator for Coils

Coil Calculator Resistance with 2 decimals
Please enter decimal separator as "."
Frequency in Hz: Inductance in mH: Impedance in Ohm:
further hint: Please choose a coil with adequate load-carrying ability.
© Iris Strassacker, 2002. All rights reserved - Warranty excluded
Air core coil power estimator Maximum power drain for coils
Please enter decimal separator as "."
Coil data, copper coil dimensions   Bass driver
Length in cm: Diameter in cm: Coil resistance in Ohm: Impedance in Ohm:
 
The coil, placed before a bass driver, is suitable for a power of up to: Watt
Important hints:
Dimensions refer to that part that gets as hot as the copper coil itself and, therefore, dissipates heat optimally. All values indicated are just a guidance and cannot be guaranteed. They were, however, results of around 100 long-term measurements over 24 hours each. The values are valid for coils with free air convection. If convection is perfect and temperature is 20°C the coil is able to transmit up to 50% more.

These values are only valid for core coils under the condition that they don't generate any additional heat through magnetisation loss (like with Corobar coils).
© Iris Strassacker, 2002. All rights reserved - Warranty excluded

If two coils L1 and L2 are in parallel, then Lges = (L1 * L2) / (L1 + L2)

Coils in parallel Please enter decimal separator as "."
L1 = mH and L2 = mH   Lges = mH
© Iris Strassacker, 2002. All rights reserved - Warranty excluded

If two coils L1 and L2 are in series, then their inductance is added up.

Coils in series Please enter decimal separator as "."
L1 = mH and L2 = mH   Lges = mH
© Iris Strassacker, 2002. All rights reserved - Warranty excluded

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