Air core coils are the best possible solution. To ensure a capacitive coupling only to neighbouring and not all turns, Mundorf manufactures an oxygen free copper foil coil (OFC copper).

The coil shows a consistent performance even beyond 100 kHz. The large surface reduces the skin effect (higher frequencies are carried on the copper surface).

Additionally, the coil has a tough, yet elastic isolation made from polypropylene foil ensuring a high mechanical stability and, therefore, suppressing vibrations efficiently.

A lab test carried out by Hobby HiFi (4/2000, starting at page 66) confirms both points: this coil is far better than vacuum impregnated round wire coils or baked varnish coils (and obviously standard coils) and is clearly superior to TRITEC coils and foil coils by CFAG (vibration, microphonics).

Mundorf is certain that these characteristics cause a considerable improvement in dynamics, attention to detail and three-dimensionality. This type of CFC coils you'll find e.g. in the Magnat Vintage 990 setting you back some 40.000 EUR (ref. Stereoplay 12/2001 page 12).

Mundorf CFC Cupferfolien-Spule Mundorf CFC Air Core Coil

In the picture you'll notice the tightly wound coil and above the wide foil connectors that can be shortened to the required length.

The coils are made of 0.075 mm foil with the following diameters:
cfc16=1.3mm2. cfc14=2.1mm2. cfc12=3.3mm2. cfc10=6mm2



Values below 1 mH

Product ID L/mH R/Ohm Dimensions
dxh/mm
Price
M-cfc16-010
M-cfc14-010
0.10
0.10
0.10
0.08
.
.
EUR 11,79 excl. VAT: € 9.91 / $ 11.89
EUR 15,89 excl. VAT: € 13.35 / $ 16.03
M-cfc16-015
M-cfc14-015
M-cfc12-015
0.15
0.15
0.15
0.11
0.08
0.07
36x27
40x38
46x54
EUR 12,96 excl. VAT: € 10.89 / $ 13.07
EUR 17,74 excl. VAT: € 14.91 / $ 17.89
EUR 28,27 excl. VAT: € 23.76 / $ 28.51
M-cfc16-022
M-cfc14-022
M-cfc12-022
0.22
0.22
0.22
0.13
0.09
0.08
38x27
42x38
48x54
EUR 14,91 excl. VAT: € 12.53 / $ 15.04
EUR 20,71 excl. VAT: € 17.40 / $ 20.89
EUR 31,97 excl. VAT: € 26.87 / $ 32.25
M-cfc16-027
M-cfc14-027
M-cfc12-027
0.27
0.27
0.27
0.16
0.11
0.08
42x27
46x38
49x54
EUR 15,89 excl. VAT: € 13.35 / $ 16.03
EUR 22,57 excl. VAT: € 18.97 / $ 22.76
EUR 33,83 excl. VAT: € 28.43 / $ 34.12
M-cfc16-033
M-cfc14-033
M-cfc12-033
0.33
0.33
0.33
0.18
0.13
0.09
44x27
49x38
52x54
EUR 16,77 excl. VAT: € 14.09 / $ 16.91
EUR 24,47 excl. VAT: € 20.56 / $ 24.68
EUR 37,72 excl. VAT: € 31.70 / $ 38.05
M-cfc16-039
M-cfc14-039
M-cfc12-039
0.39
0.39
0.39
0.20
0.14
0.10
46x27
51x38
54x54
EUR 17,74 excl. VAT: € 14.91 / $ 17.89
EUR 26,42 excl. VAT: € 22.20 / $ 26.65
EUR 40,55 excl. VAT: € 34.08 / $ 40.90
M-cfc16-047
M-cfc14-047
M-cfc12-047
0.47
0.47
0.47
0.22
0.15
0.11
48x27
53x38
56x54
EUR 18,72 excl. VAT: € 15.73 / $ 18.88
EUR 28,27 excl. VAT: € 23.76 / $ 28.51
EUR 43,38 excl. VAT: € 36.45 / $ 43.75
M-cfc16-056
M-cfc14-056
M-cfc12-056
0.56
0.56
0.56
0.24
0.16
0.12
50x27
54x38
59x54
EUR 19,69 excl. VAT: € 16.55 / $ 19.86
EUR 30,66 excl. VAT: € 25.76 / $ 30.92
EUR 47,28 excl. VAT: € 39.73 / $ 47.69
M-cfc16-068
M-cfc14-068
M-cfc12-068
0.68
0.68
0.68
0.26
0.20
0.13
52x27
60x38
61x54
EUR 21,25 excl. VAT: € 17.86 / $ 21.43
EUR 31,97 excl. VAT: € 26.87 / $ 32.25
EUR 51,86 excl. VAT: € 43.58 / $ 52.31
M-cfc16-082
M-cfc14-082
M-cfc12-082
0.82
0.82
0.82
0.29
0.22
0.15
54x27
63x38
65x54
EUR 22,57 excl. VAT: € 18.97 / $ 22.76
EUR 34,02 excl. VAT: € 28.59 / $ 34.31
EUR 56,44 excl. VAT: € 47.43 / $ 56.93

Values above 1 mH

Product ID L/mH R/Ohm Dimensions
dxh/mm
Price
M-cfc16-10
M-cfc14-10
M-cfc12-10
1.00
1.00
1.00
0.33
0.23
0.17
57x27
64x38
69x54
EUR 24,52 excl. VAT: € 20.61 / $ 24.73
EUR 35,87 excl. VAT: € 30.14 / $ 36.18
EUR 62,29 excl. VAT: € 52.34 / $ 62.83
M-cfc16-12
M-cfc14-12
M-cfc12-12
1.20
1.20
1.20
0.38
0.26
0.19
61x27
68x38
73x54
EUR 26,37 excl. VAT: € 22.16 / $ 26.60
EUR 37,72 excl. VAT: € 31.70 / $ 38.05
EUR 69,02 excl. VAT: € 58.00 / $ 69.62
M-cfc16-15
M-cfc14-15
M-cfc12-15
1.50
1.50
1.50
0.43
0.29
0.21
65x27
71x38
76x54
EUR 28,32 excl. VAT: € 23.80 / $ 28.56
EUR 42,50 excl. VAT: € 35.71 / $ 42.87
EUR 75,84 excl. VAT: € 63.73 / $ 76.49
M-cfc16-18
M-cfc14-18
M-cfc12-18
1.80
1.80
1.80
0.50
0.32
0.24
70x27
75x38
81x54
EUR 30,17 excl. VAT: € 25.35 / $ 30.43
EUR 47,18 excl. VAT: € 39.65 / $ 47.59
EUR 85,54 excl. VAT: € 71.88 / $ 86.28
M-cfc16-22
M-cfc14-22
M-cfc12-22
M-cfc10-22
2.20
2.20
2.20
2.20
0.54
0.35
0.27
0.20
72x27
78x38
86x54
88x80
EUR 33,05 excl. VAT: € 27.77 / $ 33.33
EUR 51,76 excl. VAT: € 43.50 / $ 52.21
EUR 94,46 excl. VAT: € 79.38 / $ 95.27
EUR 197,54 excl. VAT: € 166.00 / $ 199.24
M-cfc16-27
M-cfc14-27
M-cfc12-27
M-cfc10-27
2.70
2.70
2.70
2.70
0.61
0.43
0.31
0.23
77x27
86x38
86x54
94x80
EUR 35,87 excl. VAT: € 30.14 / $ 36.18
EUR 56,64 excl. VAT: € 47.60 / $ 57.13
EUR 104,30 excl. VAT: € 87.65 / $ 105.20
EUR 212,50 excl. VAT: € 178.57 / $ 214.33
M-cfc16-33
M-cfc14-33
M-cfc12-33
M-cfc10-33
3.30
3.30
3.30
3.30
0.69
0.50
0.35
0.25
81x27
93x38
98x54
99x80
EUR 42,45 excl. VAT: € 35.67 / $ 42.82
EUR 66,38 excl. VAT: € 55.78 / $ 66.95
EUR 121,85 excl. VAT: € 102.39 / $ 122.90
EUR 239,80 excl. VAT: € 201.51 / $ 241.87
M-cfc16-39
M-cfc14-39
M-cfc12-39
M-cfc10-39
3.90
3.90
3.90
3.90
0.75
0.53
0.39
0.28
85x27
95x38
103x54
104x80
EUR 47,28 excl. VAT: € 39.73 / $ 47.69
EUR 71,26 excl. VAT: € 59.88 / $ 71.87
EUR 131,60 excl. VAT: € 110.59 / $ 132.73
EUR 254,42 excl. VAT: € 213.80 / $ 256.61
M-cfc10-43 4.30 0.30 109x80 EUR 282,69 excl. VAT: € 237.55 / $ 285.13
M-cfc16-47
M-cfc14-47
M-cfc12-47
M-cfc10-47
4.70
4.70
4.70
4.70
0.86
0.59
0.43
0.31
91x27
100x38
108x54
109x80
EUR 53,61 excl. VAT: € 45.05 / $ 54.07
EUR 75,45 excl. VAT: € 63.40 / $ 76.10
EUR 141,34 excl. VAT: € 118.77 / $ 142.56
EUR 282,69 excl. VAT: € 237.55 / $ 285.13
M-cfc16-56
M-cfc14-56
M-cfc12-56
M-cfc10-56
5.60
5.60
5.60
5.60
0.95
0.65
0.47
0.34
95x27
105x38
113x54
114x80
EUR 58,44 excl. VAT: € 49.11 / $ 58.94
EUR 85,20 excl. VAT: € 71.60 / $ 85.93
EUR 154,99 excl. VAT: € 130.24 / $ 156.33
EUR 310,96 excl. VAT: € 261.31 / $ 313.64
M-cfc16-68
M-cfc14-68
M-cfc12-68
M-cfc10-68
6.80
6.80
6.80
6.80
1.1
0.74
0.52
0.38
102x27
112x38
118x54
121x80
EUR 63,31 excl. VAT: € 53.20 / $ 63.86
EUR 93,97 excl. VAT: € 78.97 / $ 94.78
EUR 169,61 excl. VAT: € 142.53 / $ 171.07
EUR 348,97 excl. VAT: € 293.25 / $ 351.98
M-cfc16-82
M-cfc14-82
M-cfc12-82
8.2
8.2
8.2
1.31
0.9
0.63
 
 
 
EUR 64,24 excl. VAT: € 53.98 / $ 64.79
EUR 107,23 excl. VAT: € 90.11 / $ 108.15
EUR 197,54 excl. VAT: € 166.00 / $ 199.24
M-cfc16-100
M-cfc14-100
10.0
10.0
1.5
1.22
 
 
EUR 75,94 excl. VAT: € 63.82 / $ 76.59
EUR 122,82 excl. VAT: € 103.21 / $ 123.88
M-cfc16-120
M-cfc14-120
12.0
12.0
 
 
 
 
EUR 75,94 excl. VAT: € 63.82 / $ 76.59
EUR 141,34 excl. VAT: € 118.77 / $ 142.56
M-cfc14-150 15.0 1.38   EUR 168,64 excl. VAT: € 141.71 / $ 170.09

Mundorf CFC Cupferfolien-Spule Mundorf CFC air core coil made of silver foil

The picture shows the dense winding with flat contacts made of foil that may be shortened to the required length.

The coils are made of foils with the following cross-sections:
cfc16=1.3mm2, cfc14=2.1mm2

Pure silver foils are highly appreciated due to their ability to reproduce the timbre vocals and instruments extremely detailed, neutral and with subtle nuances. According to Mundorf, the addition of 1 % purest gold to the silver foil improves on the crystalline structure of the silver, accomplishing a slightly warmer sound characteristic.


Art.Nr. L/mH R/Ohm Größe
dxh/mm
Preis
M-sfc16-015
M-sfc14-015
0,15
0,15
0,10
0,07
38x..
40x..
EUR 483,49 excl. VAT: € 406.29 / $ 487.66
EUR 871,78 excl. VAT: € 732.59 / $ 879.30
M-sfc16-022
M-sfc14-022
0,22
0,22
0,12
0,09
40x..
42x..
EUR 603,62 excl. VAT: € 507.24 / $ 608.82
EUR 1092,55 excl. VAT: € 918.11 / $ 1101.97
M-sfc16-033
M-sfc14-033
0,33
0,33
0,16
0,11
44x..
50x..
EUR 761,16 excl. VAT: € 639.63 / $ 767.72
EUR 1274,25 excl. VAT: € 1070.80 / $ 1285.23
M-sfc16-047
M-sfc14-047
0,47
0,47
0,20
0,15
48x..
57x..
EUR 915,10 excl. VAT: € 768.99 / $ 922.99
EUR 1583,07 excl. VAT: € 1330.31 / $ 1596.72
M-sfc16-068
M-sfc14-068
0,68
0,68
0,23
0,17
52x..
60x..
EUR 1136,86 excl. VAT: € 955.34 / $ 1146.66
EUR 1853,10 excl. VAT: € 1557.23 / $ 1869.08
M-sfc16-082
M-sfc14-082
0,82
0,82
0,26
0,19
54x..
63x..
EUR 1291,60 excl. VAT: € 1085.38 / $ 1302.73
EUR 2217,65 excl. VAT: € 1863.57 / $ 2236.77
M-sfc16-10
M-sfc14-10
1,0
1,0
0,30
0,21
58x..
64x..
EUR 1417,78 excl. VAT: € 1191.41 / $ 1430.00
EUR 2441,06 excl. VAT: € 2051.31 / $ 2462.10
M-sfc16-12
M-sfc14-12
1,2
1,2
0,34
0,23
61x..
68x..
EUR 1599,63 excl. VAT: € 1344.23 / $ 1613.42
EUR 2477,92 excl. VAT: € 2082.29 / $ 2499.28
M-sfc16-15
M-sfc14-15
1,5
1,5
0,39
0,27
65x..
70x..
EUR 1791,68 excl. VAT: € 1505.61 / $ 1807.13
EUR 3103,40 excl. VAT: € 2607.90 / $ 3130.15
M-sfc16-18
M-sfc14-18
1,8
1,8
0,45
0,29
70x..
71x..
EUR 2034,39 excl. VAT: € 1709.57 / $ 2051.93
EUR 3491,70 excl. VAT: € 2934.20 / $ 3521.80
M-sfc16-22
M-sfc14-22
2,2
2,2
0,49
0,32
72x..
78x..
EUR 2255,33 excl. VAT: € 1895.24 / $ 2274.77
EUR 3876,47 excl. VAT: € 3257.54 / $ 3909.89

Mundorf CFC Cupferfolien-Spule Mundorf CFC air core coil made of silver/gold foil

The Supreme Silver / Gold capacitors are brand new additions to the Mundorf range of products. The high-quality winding technique - known from the Supreme capacitors - is blended with silver foils, containing 1% gold. According to Mundorf this considerably improves on the crystalline structure of the silver. This inductor combines precision with harmony and elegance.



Product ID L/mH R/Ohm Dimensions
dxh/mm
Price
M-sgfc16-015
M-sgfc14-015
0.15
0.15
0.10
0.07
38x..
40x..
EUR 668,45 excl. VAT: € 561.72 / $ 674.21
EUR 1285,44 excl. VAT: € 1080.20 / $ 1296.52
M-sgfc16-022
M-sgfc14-022
0.22
0.22
0.12
0.09
40x..
42x..
EUR 834,75 excl. VAT: € 701.47 / $ 841.95
EUR 1612,82 excl. VAT: € 1355.31 / $ 1626.72
M-sgfc16-033
M-sgfc14-033
0.33
0.33
0.16
0.11
44x..
50x..
EUR 1053,01 excl. VAT: € 884.88 / $ 1062.09
EUR 1939,77 excl. VAT: € 1630.06 / $ 1956.49
M-sgfc16-047
M-sgfc14-047
0.47
0.47
0.20
0.15
48x..
57x..
EUR 1266,27 excl. VAT: € 1064.09 / $ 1277.19
EUR 2337,39 excl. VAT: € 1964.19 / $ 2357.54
M-sgfc16-068
M-sgfc14-068
0.68
0.68
0.23
0.17
52x..
60x..
EUR 1573,79 excl. VAT: € 1322.51 / $ 1587.36
EUR 2734,93 excl. VAT: € 2298.26 / $ 2758.51
M-sgfc16-082
M-sgfc14-082
0.82
0.82
0.26
0.19
54x..
63x..
EUR 1783,87 excl. VAT: € 1499.05 / $ 1799.25
EUR 3279,19 excl. VAT: € 2755.62 / $ 3307.46
M-sgfc16-10
M-sgfc14-10
1.0
1.0
0.30
0.21
58x..
64x..
EUR 1963,56 excl. VAT: € 1650.05 / $ 1980.49
EUR 3604,61 excl. VAT: € 3029.08 / $ 3635.68
M-sgfc16-12
M-sgfc14-12
1.2
1.2
0.34
0.23
61x..
68x..
EUR 2217,65 excl. VAT: € 1863.57 / $ 2236.77
EUR 3655,46 excl. VAT: € 3071.82 / $ 3686.97
M-sgfc16-15
M-sgfc14-15
1.5
1.5
0.39
0.27
65x..
70x..
EUR 2481,82 excl. VAT: € 2085.56 / $ 2503.22
EUR 4584,36 excl. VAT: € 3852.40 / $ 4623.88
M-sgfc16-18
M-sgfc14-18
1.8
1.8
0.45
0.29
70x..
71x..
EUR 2140,64 excl. VAT: € 1798.86 / $ 2159.09
EUR 5151,76 excl. VAT: € 4329.21 / $ 5196.17
M-sgfc16-22
M-sgfc14-22
2.2
2.2
0.49
0.32
72x..
78x..
EUR 3796,75 excl. VAT: € 3190.55 / $ 3829.48
EUR 5726,13 excl. VAT: € 4811.87 / $ 5775.49

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
Feron i core coils small impedance; very high power handling
Zero Ohm Coils very small impedance; very high power handling