Many headphone amplifiers have an output impedance in the range of 0.5 - 50 Ohms. Line outputs usually present a source impedance of 100 to 600 ohms. An RG-6/U coaxial cable has a characteristic impedance of 75 ohms. It produces 40 watts into 4 ohms. Its headphones amplifier supports headphones with impedances from 16 ohms to 300 ohms. In the local loop, the impedance chosen is 600 ohms (nominal). They are designed to have a characteristic impedance of 50 ohms. Terminating resistors values of 78.7 ohms 2 watt 1% are used on the MIL-STD-1553 bus. That resistance is called inductive reactance, measured in ohms. The sensitivity of an analog multimeter is given in units of ohms per volt. Using ITO, sheet resistances of 20 to 10,000 ohms per square can be achieved. This is the equivalent of 5 microvolts in 50 ohms. The particular crystal exhibited a real resistance of 114 ohms at resonance. The resulting resistance of the junction is in the range of 10 ohms.