Timeline for Is high current in a speaker the same as high voltage?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Feb 20, 2019 at 15:28 | comment | added | Hearth | Note that the impedance of the speaker is very much not a constant impedance. The nominal value should not be assumed to be the same at all driving frequencies. | |
| Feb 19, 2019 at 23:15 | comment | added | TimWescott | @Sparky256 true, but once you've gone to bridge outputs, a fixed supply voltage and a fixed speaker impedance is still going to give you a fixed power capability. If you want more you either need 2-ohm speakers (which I don't think is done, but my idea of fine car audio is to get a less restrictive muffler) or you to generate more than 12V somewhere in your amp so you have more overhead. | |
| Feb 19, 2019 at 23:02 | comment | added | user105652 | Many car stereos use IC's with bridge type outputs to get something like 15 watts per channel into 4 ohms. THD is a bit high due to cheap topology and a low bias current that is not adjustable. | |
| Feb 19, 2019 at 20:05 | history | answered | TimWescott | CC BY-SA 4.0 |