Mundorf Aronit core coils

Aronit core coils:

A071

A100

A140

Baked varnish:

foil coils:

Mundorf Aronit core coil

Aronit is a material based on sintered metal which produces very low distortions, even at high loadings. This material, in combination with specially tuned coil formers, allows the material coil to have a low ohmic resistance with excellent value for money. Aronit choke coils are used wherever high load capacity and low distortion need to be achieved at low cost.

Technical specifications:

Core material: ARONIT
Copper 99.99%
Coil form: PA, fi bre-glass reinforced

In non-impregnated coils, vibration occurs as a result of the current flowing through the coil. The microphonic effect, i.e. the conversion of mechanical into electric oscillations, adds these oscillations back to the original signal as additional information. In this way, details of the original signal are overlaid and rendered unrecognisable. The music loses spatial quality and transparency. This process is prevented by

vacuum impregnation
baked varnish coils are made from a special wire
copper foil coils

Baked varnish coils of this type can be found below. Their product ID starts with "b"
Copper foil coils can be found at the end of this page.

Please note: The power values Pmax in the following tables were determined at 20 degrees Celsius ambient temperature and free convection. They are just a guideline and - since we are not the manufacturers - cannot be guaranteed by us.

Aronit core coil a71 (wire with 0.71 mm diameter)

Product ID	L/mH	R/Ohm	Wire- D/mm	Pmax^*) 8Ohm	Coil Size (DxH/mm)	Price
M-a71-56	5.6	1.6	0.71	16 W	45 x 30	EUR 12,30 excl. VAT: € 10.34 / $ 11.47
M-a71-68	6.8	1.7	0.71	17 W	45 x 30	EUR 13,30 excl. VAT: € 11.18 / $ 12.41
M-a71-82	8.2	1.9	0.71	15 W	45 x 30	EUR 14,30 excl. VAT: € 12.02 / $ 13.34
M-a71-100	10.0	2.2	0.71	14 W	45 x 30	EUR 15,20 excl. VAT: € 12.77 / $ 14.18
M-a71-120	12.0	2.6	0.71	13 W	45 x 30	EUR 16,20 excl. VAT: € 13.61 / $ 15.11

*) Pmax 8 Ohm is the maximum power that this coil is able to deliver to the bass driver.
The values are valid for free air convection and 20°C. For 4 Ohm speakers this value has to be halved.

Aronit core coils:

Baked varnish:

foil coils:

Aronit core coil a100 (wire with 1.0 mm diameter)

Product ID	L/mH	R/Ohm	Wire- D/mm	Pmax^*) 8Ohm	Coil Size (DxH/mm)	Price
M-a100-22	2.2	0.49	1.00	56 W	45 x 30	EUR 12,30 excl. VAT: € 10.34 / $ 11.47
M-a100-27	2.7	0.57	1.00	50 W	45 x 30	EUR 13,30 excl. VAT: € 11.18 / $ 12.41
M-a100-33	3.3	0.64	1.00	47 W	45 x 30	EUR 14,30 excl. VAT: € 12.02 / $ 13.34
M-a100-39	3.9	0.71	1.00	46 W	45 x 30	EUR 15,20 excl. VAT: € 12.77 / $ 14.18
M-a100-47	4.7	0.80	1.00	44 W	45 x 30	EUR 16,20 excl. VAT: € 13.61 / $ 15.11

*) Pmax 8 Ohm is the maximum power that this coil is able to deliver to the bass driver.
The values are valid for free air convection and 20°C. For 4 Ohm speakers this value has to be halved.

Aronit core coils:

Baked varnish:

foil coils:

Aronit core coil a140 (wire with 1.4 mm diameter)

Product ID	L/mH	R/Ohm	Wire- D/mm	Pmax^*) 8Ohm	Coil Size (DxH/mm)	Price
M-a140-039	0.39	0.10	1.4	229 W	45 x 30	EUR 11,40 excl. VAT: € 9.58 / $ 10.63
M-a140-047	0.47	0.11	1.4	228 W	45 x 30	EUR 12,40 excl. VAT: € 10.42 / $ 11.57
M-a140-056	0.56	0.13	1.4	210 W	45 x 30	EUR 13,30 excl. VAT: € 11.18 / $ 12.41
M-a140-068	0.68	0.14	1.4	205 W	45 x 30	EUR 14,30 excl. VAT: € 12.02 / $ 13.34
M-a140-082	0.82	0.16	1.4	189 W	45 x 30	EUR 15,30 excl. VAT: € 12.86 / $ 14.27
M-a140-10	1.0	0.18	1.4	180 W	45 x 30	EUR 16,20 excl. VAT: € 13.61 / $ 15.11

*) Pmax 8 Ohm is the maximum power that this coil is able to deliver to the bass driver.
The values are valid for free air convection and 20°C. For 4 Ohm speakers this value has to be halved.

Aronit core coils:

Baked varnish:

foil coils:

Aronit core coil ba71 with baked 0.71 mm wire

Product ID	L/mH	R/Ohm	Wire- D/mm	Pmax^*) 8Ohm	Coil Size (DxH/mm)	Price
M-ba71-56	5.6	1.6	0.71	16 W	45 x 30	EUR 15,30 excl. VAT: € 12.86 / $ 14.27
M-ba71-68	6.8	1.7	0.71	17 W	45 x 30	EUR 15,90 excl. VAT: € 13.36 / $ 14.83
M-ba71-82	8.2	1.9	0.71	15 W	45 x 30	EUR 17,20 excl. VAT: € 14.45 / $ 16.04
M-ba71-100	10.0	2.2	0.71	14 W	45 x 30	EUR 18,25 excl. VAT: € 15.34 / $ 17.02
M-ba71-120	12.0	2.6	0.71	13 W	45 x 30	EUR 19,15 excl. VAT: € 16.09 / $ 17.86

*) Pmax 8 Ohm is the maximum power that this coil is able to deliver to the bass driver.
The values are valid for free air convection and 20°C. For 4 Ohm speakers this value has to be halved.

Aronit core coils:

Baked varnish:

foil coils:

Aronit core coil ba100 with baked 1.0 mm wire

Product ID	L/mH	R/Ohm	Wire- D/mm	Pmax^*) 8Ohm	Coil Size (DxH/mm)	Price
M-ba100-12	1.2	0.33	1.00	65 W	45 x 30	EUR 11,30 excl. VAT: € 9.50 / $ 10.54
M-ba100-22	2.2	0.49	1.00	56 W	45 x 30	EUR 15,30 excl. VAT: € 12.86 / $ 14.27
M-ba100-33	3.3	0.64	1.00	47 W	45 x 30	EUR 17,20 excl. VAT: € 14.45 / $ 16.04
M-ba100-39	3.9	0.71	1.00	46 W	45 x 30	EUR 18,25 excl. VAT: € 15.34 / $ 17.02
M-ba100-47	4.7	0.80	1.00	44 W	45 x 30	EUR 19,15 excl. VAT: € 16.09 / $ 17.86

*) Pmax 8 Ohm is the maximum power that this coil is able to deliver to the bass driver.
The values are valid for free air convection and 20°C. For 4 Ohm speakers this value has to be halved.

Aronit core coils:

Baked varnish:

foil coils:

Aronit core coil ba140 with baked 1.4 mm wire

Product ID	L/mH	R/Ohm	Wire- D/mm	Pmax^*) 8Ohm	Coil Size (DxH/mm)	Price
M-ba140-039	0.39	0.10	1.4	229 W	45 x 30	- not available
M-ba140-047	0.47	0.11	1.4	228 W	45 x 30	EUR 15,30 excl. VAT: € 12.86 / $ 14.27
M-ba140-056	0.56	0.13	1.4	210 W	45 x 30	EUR 16,30 excl. VAT: € 13.70 / $ 15.20
M-ba140-068	0.68	0.14	1.4	205 W	45 x 30	EUR 17,20 excl. VAT: € 14.45 / $ 16.04
M-ba140-082	0.82	0.16	1.4	189 W	45 x 30	EUR 18,20 excl. VAT: € 15.29 / $ 16.98
M-ba140-10	1.0	0.18	1.4	180 W	45 x 30	EUR 19,25 excl. VAT: € 16.18 / $ 17.96
M-ba140-22	2.2	0.34	1.4	175 W	70 x 29	EUR 19,60 excl. VAT: € 16.47 / $ 18.28

*) Pmax 8 Ohm is the maximum power that this coil is able to deliver to the bass driver.
The values are valid for free air convection and 20°C. For 4 Ohm speakers this value has to be halved.

Aronit core coils:

Baked varnish:

foil coils:

Aronit-core coils cfe with copper foil

Winding upon winding, the foil coil is the most physically ideal coil type. This can be seen for example in the quality of the coil that remains constant for up to 100 kilohertz. Moreover, the undesired capacitive part of this coil is particularly low so that very high frequencies are also effectively blocked. In addition, the large surface area of the foil also improves the effective conductivity for alternating current (skin effect). The high mechanical stability of the design is also remarkable: Due to the large contact surface between the individual windings and the tough-elastic isolation of the polypropylene foil, the vibrations of the individual windings are effectively eliminated.

More information on vibrations of coils.

Product ID	L/mH	R/Ohm	Wire- D/mm	Pmax^*) 8Ohm	Coil Size (DxH/mm)	Price
...	...	...	...	...	...	not available

*) Pmax 8 Ohm is the maximum power that this coil is able to deliver to the bass driver.
The values are valid for free air convection and 20°C. For 4 Ohm speakers this value has to be halved.

Aronit core coils:

Baked varnish:

foil coils:

Coils overview

Mundorf coils	Properties
Air core coils	good price/performance ratio; low distortion
Baked varnish air core coils	good price/performance ratio; low distortion
Copper foil coil (cfc)	with excellent three-dimensionality and attention to detail; they belong to the group of exceptionally neutral .
Air-core coils made from silver/gold wire
Ferrit core coils	good price/performance ratio; high inductivity
H Core Coils	small impedance; high power handling
Aronit core coils	small impedance; high power handling
Feron i core coils	small impedance; very high power handling
Zero Ohm Coils	very small impedance; very high power handling