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| Thread ID: 82949 | 2007-09-14 01:17:00 | Impedance | Ninjabear (2948) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 590968 | 2007-09-14 01:17:00 | I'm trying to find a simple explanation of what Ohms is for for electrical impedance and all Im getting is a very complicated explanation that doesn't even make any sense to me How does a earphone that has a higher Ohms compared to a earphone that has a lower ohms ?Impedance |
Ninjabear (2948) | ||
| 590969 | 2007-09-14 01:23:00 | Buggered if I understand it properly either. I wait eagerly for the knowledgable people.....:o | wratterus (105) | ||
| 590970 | 2007-09-14 02:11:00 | Impedance and resistance are similar in nature, however resistance (in Ohms) applies only to DC or to strictly resistive circuits (with no inductive coils or capacitors included), in AC circuits capacitance and inductance come into play so the term impedance is used. If the amplifier is designed for 8 Ohms, connecting a 4 Ohm impedance device will probably cause the amplifier to overload and fail. Connecting a 16 Ohm device to an 8 Ohm amplifier output will not harm the amplifier but a lot less power will be able to be transferred to the device. When impedances match, the maximum amount of power can be transferred. You can measure resistance with a cheap multimeter but not impedance, because the impedance of headphones will vary according to the frequency of the AC (audio) signal. Homework? |
godfather (25) | ||
| 590971 | 2007-09-14 02:33:00 | Impedance and resistance are similar in nature, however resistance (in Ohms) applies only to DC or to strictly resistive circuits (with no inductive coils or capacitors included), in AC circuits capacitance and inductance come into play so the term impedance is used. If the amplifier is designed for 8 Ohms, connecting a 4 Ohm impedance device will probably cause the amplifier to overload and fail. Connecting a 16 Ohm device to an 8 Ohm amplifier output will not harm the amplifier but a lot less power will be able to be transferred to the device. When impedances match, the maximum amount of power can be transferred. You can measure resistance with a cheap multimeter but not impedance, because the impedance of headphones will vary according to the frequency of the AC (audio) signal. Homework? No not homework .Its a question as my friend asked me the shure E5c has a higher ohms than Ultimate ears superfi 10 pro.10Pro has a lower ohms so what difference does it make? |
Ninjabear (2948) | ||
| 590972 | 2007-09-14 04:11:00 | If you want answers, it would help if you told us what those two devices are instead of expecting us to search for them. However, on the basis that they are both sound reproducers of some sort, for a given power output (drive voltage level), the lower impedance device will produce a higher sound level (more volume). Cheers Billy 8-{) |
Billy T (70) | ||
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