| Im building a car battery-powered PA for guitar, voice and bass. I have some car speakers and a power amp and Im hooking that to a battery-powered mixer. Everything works so far but I havent assembled the parts into an enclosure. |
| Ive read about people buying new TV sets and leaving them in the Back seat of their car for a hour or 2 and to get the TV home and find out that the TV now has nice blue red Lines on the side where the car speakers where in the car. |
| - Should go with a sealed or ported enclosure? - For sealed enclosure, do I need to separate the woofer and the unsealed midrange/tweeter speaker? Im afraid the pressure from the bass would push the midrange cone around. - Is it more likely to damage the woofer in a ported enclosure? The amp and speakers have outlandish wattage specs I would be unlikely to take advantage of even if they were accurate but Im guessing a live bass would stress the speaker more than recorded music. Hmmm, let me ask a question of my own. What amp is this that will produce outlandish watts on a car battery? |
| I tried talking to the local dealerships but as they have a monopoly in this town they feel no need to be helpful. They flat refused to answer my questions telling me they dont deal with stereo problems on older cars. |
| Good instrument speakers are in the hundred dB sensitivities. The trade off is low bass. Car speakers can do that in a nice enclosed venue ( the car) and instrument speakers sacrifice the lowest octave a bit to go much louder in the range where you hear the music more than you feel it. Big subwoofers with huge amps can get you bottom when the time comes. Even then the big subs still only go to 40-35 hz, if they are good loud ones. Stereo subs are another issue and they go lower but again they can not play loud. |
