High-End Coils: CFC by Mundorf

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 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 10,55 excl. VAT: € 8.87 / $ 9.84 EUR 15,35 excl. VAT: € 12.90 / $ 14.32
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 12,35 excl. VAT: € 10.38 / $ 11.52 EUR 17,25 excl. VAT: € 14.50 / $ 16.09 EUR 25,10 excl. VAT: € 21.09 / $ 23.41
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 14,35 excl. VAT: € 12.06 / $ 13.39 EUR 21,25 excl. VAT: € 17.86 / $ 19.82 EUR 30,90 excl. VAT: € 25.97 / $ 28.82
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 15,35 excl. VAT: € 12.90 / $ 14.32 EUR 23,15 excl. VAT: € 19.45 / $ 21.59 EUR 32,85 excl. VAT: € 27.61 / $ 30.64
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 16,25 excl. VAT: € 13.66 / $ 15.16 EUR 25,10 excl. VAT: € 21.09 / $ 23.41 EUR 38,70 excl. VAT: € 32.52 / $ 36.10
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 17,25 excl. VAT: € 14.50 / $ 16.09 EUR 27,10 excl. VAT: € 22.77 / $ 25.28 EUR 43,55 excl. VAT: € 36.60 / $ 40.62
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 18,25 excl. VAT: € 15.34 / $ 17.02 EUR 29,00 excl. VAT: € 24.37 / $ 27.05 EUR 48,45 excl. VAT: € 40.71 / $ 45.19
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 19,20 excl. VAT: € 16.13 / $ 17.91 EUR 31,45 excl. VAT: € 26.43 / $ 29.34 EUR 53,40 excl. VAT: € 44.87 / $ 49.81
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 21,20 excl. VAT: € 17.82 / $ 19.77 EUR 33,80 excl. VAT: € 28.40 / $ 31.53 EUR 58,20 excl. VAT: € 48.91 / $ 54.29
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 23,15 excl. VAT: € 19.45 / $ 21.59 EUR 36,80 excl. VAT: € 30.92 / $ 34.33 EUR 62,75 excl. VAT: € 52.73 / $ 58.53

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 25,15 excl. VAT: € 21.13 / $ 23.46 EUR 40,70 excl. VAT: € 34.20 / $ 37.96 EUR 67,75 excl. VAT: € 56.93 / $ 63.20
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 27,05 excl. VAT: € 22.73 / $ 25.23 EUR 44,50 excl. VAT: € 37.39 / $ 41.51 EUR 72,75 excl. VAT: € 61.13 / $ 67.86
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 29,05 excl. VAT: € 24.41 / $ 27.10 EUR 48,40 excl. VAT: € 40.67 / $ 45.15 EUR 77,80 excl. VAT: € 65.38 / $ 72.57
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 30,95 excl. VAT: € 26.01 / $ 28.87 EUR 52,30 excl. VAT: € 43.95 / $ 48.78 EUR 87,75 excl. VAT: € 73.74 / $ 81.85
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 34,85 excl. VAT: € 29.29 / $ 32.51 EUR 59,85 excl. VAT: € 50.29 / $ 55.83 EUR 106,60 excl. VAT: € 89.58 / $ 99.43 EUR 202,65 excl. VAT: € 170.29 / $ 189.03
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 37,75 excl. VAT: € 31.72 / $ 35.21 EUR 64,85 excl. VAT: € 54.50 / $ 60.49 EUR 116,65 excl. VAT: € 98.03 / $ 108.81 EUR 222,70 excl. VAT: € 187.14 / $ 207.73
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 43,55 excl. VAT: € 36.60 / $ 40.62 EUR 77,80 excl. VAT: € 65.38 / $ 72.57 EUR 134,65 excl. VAT: € 113.15 / $ 125.60 EUR 260,65 excl. VAT: € 219.03 / $ 243.13
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 48,50 excl. VAT: € 40.76 / $ 45.24 EUR 87,75 excl. VAT: € 73.74 / $ 81.85 EUR 144,65 excl. VAT: € 121.55 / $ 134.93 EUR 280,65 excl. VAT: € 235.84 / $ 261.78
M-cfc10-43	4.30	0.30	109x80	EUR 246,00 excl. VAT: € 206.72 / $ 229.46
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 53,25 excl. VAT: € 44.75 / $ 49.67 EUR 96,75 excl. VAT: € 81.30 / $ 90.25 EUR 154,65 excl. VAT: € 129.96 / $ 144.25 EUR 299,65 excl. VAT: € 251.81 / $ 279.51
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 57,80 excl. VAT: € 48.57 / $ 53.91 EUR 106,80 excl. VAT: € 89.75 / $ 99.62 EUR 163,80 excl. VAT: € 137.65 / $ 152.79 EUR 319,00 excl. VAT: € 268.07 / $ 297.55
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 62,75 excl. VAT: € 52.73 / $ 58.53 EUR 115,65 excl. VAT: € 97.18 / $ 107.88 EUR 183,65 excl. VAT: € 154.33 / $ 171.30 EUR 348,00 excl. VAT: € 292.44 / $ 324.61
M-cfc16-82 M-cfc14-82 M-cfc12-82	8.2 8.2 8.2	1.31 0.9 0.63		EUR 65,90 excl. VAT: € 55.38 / $ 61.47 EUR 124,60 excl. VAT: € 104.71 / $ 116.22 EUR 202,65 excl. VAT: € 170.29 / $ 189.03
M-cfc16-100 M-cfc14-100	10.0 10.0	1.5 1.22		EUR 73,90 excl. VAT: € 62.10 / $ 68.93 EUR 108,00 excl. VAT: € 90.76 / $ 100.74
M-cfc16-120 M-cfc14-120	12.0 12.0			EUR 67,90 excl. VAT: € 57.06 / $ 63.34 EUR 135,00 excl. VAT: € 113.45 / $ 125.92
M-cfc14-150	15.0	1.38		EUR 144,00 excl. VAT: € 121.01 / $ 134.32

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 503,00 excl. VAT: € 422.69 / $ 469.18 EUR 909,00 excl. VAT: € 763.87 / $ 847.89
M-sfc16-022 M-sfc14-022	0,22 0,22	0,12 0,09	40x.. 42x..	EUR 632,00 excl. VAT: € 531.09 / $ 589.51 EUR 1137,00 excl. VAT: € 955.46 / $ 1060.56
M-sfc16-033 M-sfc14-033	0,33 0,33	0,16 0,11	44x.. 50x..	EUR 790,00 excl. VAT: € 663.87 / $ 736.89 EUR 1364,00 excl. VAT: € 1146.22 / $ 1272.30
M-sfc16-047 M-sfc14-047	0,47 0,47	0,20 0,15	48x.. 57x..	EUR 661,00 excl. VAT: € 555.46 / $ 616.56 EUR 1651,00 excl. VAT: € 1387.39 / $ 1540.01
M-sfc16-068 M-sfc14-068	0,68 0,68	0,23 0,17	52x.. 60x..	EUR 1186,00 excl. VAT: € 996.64 / $ 1106.27 EUR 1929,00 excl. VAT: € 1621.01 / $ 1799.32
M-sfc16-082 M-sfc14-082	0,82 0,82	0,26 0,19	54x.. 63x..	EUR 1325,00 excl. VAT: € 1113.45 / $ 1235.92 EUR 2275,00 excl. VAT: € 1911.76 / $ 2122.06
M-sfc16-10 M-sfc14-10	1,0 1,0	0,30 0,21	58x.. 64x..	EUR 1473,00 excl. VAT: € 1237.82 / $ 1373.97 EUR 2542,00 excl. VAT: € 2136.13 / $ 2371.11
M-sfc16-12 M-sfc14-12	1,2 1,2	0,34 0,23	61x.. 68x..	EUR 1641,00 excl. VAT: € 1378.99 / $ 1530.68 EUR 2542,00 excl. VAT: € 2136.13 / $ 2371.11
M-sfc16-15 M-sfc14-15	1,5 1,5	0,39 0,27	65x.. 70x..	EUR 1869,00 excl. VAT: € 1570.59 / $ 1743.35 EUR 3225,00 excl. VAT: € 2710.08 / $ 3008.19
M-sfc16-18 M-sfc14-18	1,8 1,8	0,45 0,29	70x.. 71x..	EUR 2087,00 excl. VAT: € 1753.78 / $ 1946.70 EUR 3582,00 excl. VAT: € 3010.08 / $ 3341.19
M-sfc16-22 M-sfc14-22	2,2 2,2	0,49 0,32	72x.. 78x..	EUR 2344,00 excl. VAT: € 1969.75 / $ 2186.42 EUR 4027,00 excl. VAT: € 3384.03 / $ 3756.28

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 701,00 excl. VAT: € 589.08 / $ 653.87 EUR 1335,00 excl. VAT: € 1121.85 / $ 1245.25
M-sgfc16-022 M-sgfc14-022	0.22 0.22	0.12 0.09	40x.. 42x..	EUR 869,00 excl. VAT: € 730.25 / $ 810.58 EUR 1681,00 excl. VAT: € 1412.61 / $ 1567.99
M-sgfc16-033 M-sgfc14-033	0.33 0.33	0.16 0.11	44x.. 50x..	EUR 1097,00 excl. VAT: € 921.85 / $ 1023.25 EUR 2018,00 excl. VAT: € 1695.80 / $ 1882.34
M-sgfc16-047 M-sgfc14-047	0.47 0.47	0.20 0.15	48x.. 57x..	EUR 1315,00 excl. VAT: € 1105.04 / $ 1226.60 EUR 2433,00 excl. VAT: € 2044.54 / $ 2269.44
M-sgfc16-068 M-sgfc14-068	0.68 0.68	0.23 0.17	52x.. 60x..	EUR 1641,00 excl. VAT: € 1378.99 / $ 1530.68 EUR 2849,00 excl. VAT: € 2394.12 / $ 2657.47
M-sgfc16-082 M-sgfc14-082	0.82 0.82	0.26 0.19	54x.. 63x..	EUR 1830,00 excl. VAT: € 1537.82 / $ 1706.97 EUR 3364,00 excl. VAT: € 2826.89 / $ 3137.85
M-sgfc16-10 M-sgfc14-10	1.0 1.0	0.30 0.21	58x.. 64x..	EUR 2047,00 excl. VAT: € 1720.17 / $ 1909.39 EUR 3750,00 excl. VAT: € 3151.26 / $ 3497.90
M-sgfc16-12 M-sgfc14-12	1.2 1.2	0.34 0.23	61x.. 68x..	EUR 2275,00 excl. VAT: € 1911.76 / $ 2122.06 EUR 3750,00 excl. VAT: € 3151.26 / $ 3497.90
M-sgfc16-15 M-sgfc14-15	1.5 1.5	0.39 0.27	65x.. 70x..	EUR 2582,00 excl. VAT: € 2169.75 / $ 2408.42 EUR 4770,00 excl. VAT: € 4008.40 / $ 4449.33
M-sgfc16-18 M-sgfc14-18	1.8 1.8	0.45 0.29	70x.. 71x..	EUR 2196,00 excl. VAT: € 1845.38 / $ 2048.37 EUR 5285,00 excl. VAT: € 4441.18 / $ 4929.71
M-sgfc16-22 M-sgfc14-22	2.2 2.2	0.49 0.32	72x.. 78x..	EUR 3245,00 excl. VAT: € 2726.89 / $ 3026.85 EUR 5948,00 excl. VAT: € 4998.32 / $ 5548.13

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	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