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 12,10 excl. VAT: € 10.17 / $ 12.30
EUR 16,40 excl. VAT: € 13.78 / $ 16.68
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 13,30 excl. VAT: € 11.18 / $ 13.52
EUR 18,30 excl. VAT: € 15.38 / $ 18.61
EUR 29,10 excl. VAT: € 24.45 / $ 29.59
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 15,40 excl. VAT: € 12.94 / $ 15.66
EUR 21,30 excl. VAT: € 17.90 / $ 21.66
EUR 32,90 excl. VAT: € 27.65 / $ 33.45
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 16,40 excl. VAT: € 13.78 / $ 16.68
EUR 23,20 excl. VAT: € 19.50 / $ 23.59
EUR 34,80 excl. VAT: € 29.24 / $ 35.38
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 17,30 excl. VAT: € 14.54 / $ 17.59
EUR 25,20 excl. VAT: € 21.18 / $ 25.62
EUR 38,90 excl. VAT: € 32.69 / $ 39.55
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 18,30 excl. VAT: € 15.38 / $ 18.61
EUR 27,20 excl. VAT: € 22.86 / $ 27.66
EUR 41,80 excl. VAT: € 35.13 / $ 42.50
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 19,30 excl. VAT: € 16.22 / $ 19.62
EUR 29,10 excl. VAT: € 24.45 / $ 29.59
EUR 44,70 excl. VAT: € 37.56 / $ 45.45
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 20,30 excl. VAT: € 17.06 / $ 20.64
EUR 31,60 excl. VAT: € 26.55 / $ 32.13
EUR 48,70 excl. VAT: € 40.92 / $ 49.52
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 21,90 excl. VAT: € 18.40 / $ 22.27
EUR 32,90 excl. VAT: € 27.65 / $ 33.45
EUR 53,40 excl. VAT: € 44.87 / $ 54.30
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 23,20 excl. VAT: € 19.50 / $ 23.59
EUR 35,00 excl. VAT: € 29.41 / $ 35.59
EUR 58,10 excl. VAT: € 48.82 / $ 59.08

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 25,30 excl. VAT: € 21.26 / $ 25.73
EUR 36,90 excl. VAT: € 31.01 / $ 37.52
EUR 64,20 excl. VAT: € 53.95 / $ 65.28
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 27,20 excl. VAT: € 22.86 / $ 27.66
EUR 38,90 excl. VAT: € 32.69 / $ 39.55
EUR 71,10 excl. VAT: € 59.75 / $ 72.29
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 29,20 excl. VAT: € 24.54 / $ 29.69
EUR 43,80 excl. VAT: € 36.81 / $ 44.54
EUR 78,10 excl. VAT: € 65.63 / $ 79.41
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 31,10 excl. VAT: € 26.13 / $ 31.62
EUR 48,60 excl. VAT: € 40.84 / $ 49.42
EUR 88,10 excl. VAT: € 74.03 / $ 89.58
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 34,00 excl. VAT: € 28.57 / $ 34.57
EUR 53,30 excl. VAT: € 44.79 / $ 54.20
EUR 97,30 excl. VAT: € 81.76 / $ 98.94
EUR 204,00 excl. VAT: € 171.43 / $ 207.43
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 36,90 excl. VAT: € 31.01 / $ 37.52
EUR 58,30 excl. VAT: € 48.99 / $ 59.28
EUR 107,00 excl. VAT: € 89.92 / $ 108.80
EUR 219,00 excl. VAT: € 184.03 / $ 222.68
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 43,70 excl. VAT: € 36.72 / $ 44.43
EUR 68,40 excl. VAT: € 57.48 / $ 69.55
EUR 126,00 excl. VAT: € 105.88 / $ 128.12
EUR 247,00 excl. VAT: € 207.56 / $ 251.15
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 48,70 excl. VAT: € 40.92 / $ 49.52
EUR 73,40 excl. VAT: € 61.68 / $ 74.63
EUR 136,00 excl. VAT: € 114.29 / $ 138.29
EUR 262,00 excl. VAT: € 220.17 / $ 266.40
M-cfc10-43 4.30 0.30 109x80 EUR 291,00 excl. VAT: € 244.54 / $ 295.89
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 55,20 excl. VAT: € 46.39 / $ 56.13
EUR 77,70 excl. VAT: € 65.29 / $ 79.01
EUR 146,00 excl. VAT: € 122.69 / $ 148.45
EUR 291,00 excl. VAT: € 244.54 / $ 295.89
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 60,20 excl. VAT: € 50.59 / $ 61.21
EUR 87,80 excl. VAT: € 73.78 / $ 89.28
EUR 160,00 excl. VAT: € 134.45 / $ 162.69
EUR 320,00 excl. VAT: € 268.91 / $ 325.38
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 65,20 excl. VAT: € 54.79 / $ 66.30
EUR 96,80 excl. VAT: € 81.34 / $ 98.43
EUR 175,00 excl. VAT: € 147.06 / $ 177.94
EUR 359,00 excl. VAT: € 301.68 / $ 365.03
M-cfc16-82
M-cfc14-82
M-cfc12-82
8.2
8.2
8.2
1.31
0.9
0.63
 
 
 
EUR 66,20 excl. VAT: € 55.63 / $ 67.31
EUR 110,00 excl. VAT: € 92.44 / $ 111.85
EUR 204,00 excl. VAT: € 171.43 / $ 207.43
M-cfc16-100
M-cfc14-100
10.0
10.0
1.5
1.22
 
 
EUR 78,20 excl. VAT: € 65.71 / $ 79.51
EUR 127,00 excl. VAT: € 106.72 / $ 129.13
M-cfc16-120
M-cfc14-120
12.0
12.0
 
 
 
 
EUR 78,20 excl. VAT: € 65.71 / $ 79.51
EUR 146,00 excl. VAT: € 122.69 / $ 148.45
M-cfc14-150 15.0 1.38   EUR 174,00 excl. VAT: € 146.22 / $ 176.92

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 498,00 excl. VAT: € 418.49 / $ 506.37
EUR 898,00 excl. VAT: € 754.62 / $ 913.09
M-sfc16-022
M-sfc14-022
0,22
0,22
0,12
0,09
40x..
42x..
EUR 622,00 excl. VAT: € 522.69 / $ 632.45
EUR 1125,00 excl. VAT: € 945.38 / $ 1143.91
M-sfc16-033
M-sfc14-033
0,33
0,33
0,16
0,11
44x..
50x..
EUR 784,00 excl. VAT: € 658.82 / $ 797.18
EUR 1313,00 excl. VAT: € 1103.36 / $ 1335.07
M-sfc16-047
M-sfc14-047
0,47
0,47
0,20
0,15
48x..
57x..
EUR 943,00 excl. VAT: € 792.44 / $ 958.85
EUR 1631,00 excl. VAT: € 1370.59 / $ 1658.41
M-sfc16-068
M-sfc14-068
0,68
0,68
0,23
0,17
52x..
60x..
EUR 1171,00 excl. VAT: € 984.03 / $ 1190.68
EUR 1909,00 excl. VAT: € 1604.20 / $ 1941.08
M-sfc16-082
M-sfc14-082
0,82
0,82
0,26
0,19
54x..
63x..
EUR 1330,00 excl. VAT: € 1117.65 / $ 1352.35
EUR 2284,00 excl. VAT: € 1919.33 / $ 2322.39
M-sfc16-10
M-sfc14-10
1,0
1,0
0,30
0,21
58x..
64x..
EUR 1460,00 excl. VAT: € 1226.89 / $ 1484.54
EUR 2514,00 excl. VAT: € 2112.61 / $ 2556.25
M-sfc16-12
M-sfc14-12
1,2
1,2
0,34
0,23
61x..
68x..
EUR 1648,00 excl. VAT: € 1384.87 / $ 1675.70
EUR 2552,00 excl. VAT: € 2144.54 / $ 2594.89
M-sfc16-15
M-sfc14-15
1,5
1,5
0,39
0,27
65x..
70x..
EUR 1845,00 excl. VAT: € 1550.42 / $ 1876.01
EUR 3197,00 excl. VAT: € 2686.55 / $ 3250.73
M-sfc16-18
M-sfc14-18
1,8
1,8
0,45
0,29
70x..
71x..
EUR 2095,00 excl. VAT: € 1760.50 / $ 2130.21
EUR 3597,00 excl. VAT: € 3022.69 / $ 3657.45
M-sfc16-22
M-sfc14-22
2,2
2,2
0,49
0,32
72x..
78x..
EUR 2323,00 excl. VAT: € 1952.10 / $ 2362.04
EUR 3993,00 excl. VAT: € 3355.46 / $ 4060.11

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 689,00 excl. VAT: € 578.99 / $ 700.58
EUR 1324,00 excl. VAT: € 1112.61 / $ 1346.25
M-sgfc16-022
M-sgfc14-022
0.22
0.22
0.12
0.09
40x..
42x..
EUR 860,00 excl. VAT: € 722.69 / $ 874.45
EUR 1661,00 excl. VAT: € 1395.80 / $ 1688.92
M-sgfc16-033
M-sgfc14-033
0.33
0.33
0.16
0.11
44x..
50x..
EUR 1085,00 excl. VAT: € 911.76 / $ 1103.24
EUR 1998,00 excl. VAT: € 1678.99 / $ 2031.58
M-sgfc16-047
M-sgfc14-047
0.47
0.47
0.20
0.15
48x..
57x..
EUR 1304,00 excl. VAT: € 1095.80 / $ 1325.92
EUR 2408,00 excl. VAT: € 2023.53 / $ 2448.47
M-sgfc16-068
M-sgfc14-068
0.68
0.68
0.23
0.17
52x..
60x..
EUR 1621,00 excl. VAT: € 1362.18 / $ 1648.24
EUR 2817,00 excl. VAT: € 2367.23 / $ 2864.34
M-sgfc16-082
M-sgfc14-082
0.82
0.82
0.26
0.19
54x..
63x..
EUR 1837,00 excl. VAT: € 1543.70 / $ 1867.87
EUR 3378,00 excl. VAT: € 2838.66 / $ 3434.77
M-sgfc16-10
M-sgfc14-10
1.0
1.0
0.30
0.21
58x..
64x..
EUR 2023,00 excl. VAT: € 1700.00 / $ 2057.00
EUR 3713,00 excl. VAT: € 3120.17 / $ 3775.40
M-sgfc16-12
M-sgfc14-12
1.2
1.2
0.34
0.23
61x..
68x..
EUR 2284,00 excl. VAT: € 1919.33 / $ 2322.39
EUR 3765,00 excl. VAT: € 3163.87 / $ 3828.28
M-sgfc16-15
M-sgfc14-15
1.5
1.5
0.39
0.27
65x..
70x..
EUR 2556,00 excl. VAT: € 2147.90 / $ 2598.96
EUR 4722,00 excl. VAT: € 3968.07 / $ 4801.36
M-sgfc16-18
M-sgfc14-18
1.8
1.8
0.45
0.29
70x..
71x..
EUR 2205,00 excl. VAT: € 1852.94 / $ 2242.06
EUR 5306,00 excl. VAT: € 4458.82 / $ 5395.18
M-sgfc16-22
M-sgfc14-22
2.2
2.2
0.49
0.32
72x..
78x..
EUR 3911,00 excl. VAT: € 3286.55 / $ 3976.73
EUR 5898,00 excl. VAT: € 4956.30 / $ 5997.13

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