Quote:
Originally Posted by marsheng
All that the ohmage does is increase the power rating. Lower ohms higher power from the same power supply voltage. Even 8 ohms in a car should have enough volume for normal listening.
The sensitivity is related to 2 factors. Gap between coils and magnets. Speaker weight. Smaller gap, higher sensivity, lighter cone, easier to move. The problem with cars is that when you bang the doors closed, the cone gets a massive pressure pulse and so car speakers are made heavier than hi fi ones to be able to take the abuse. So to start they are less sensitive.
Bottom line driving down the highway, you wont hear the difference.
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Your speakers have to match your amplifier. I hate to break it to you but increasing ohm rating doesnt necassarily increase the power rating albeit it takes less power to reach the same power with a 4 ohm speaker, but speaker and amplifiers have to match in general terms.
You cant compare car audio and home audio, and I beg to differ you will hear the difference in your car using a more sensative speaker it takes less power to reach higher volume.
Sensativity has nothing to do with ohm rating either, there are varying levels a sensativity with in the same ohmage speakers.
The guy asked for an opinion on reinstalling haes or bose as replacement not an engineering discussion. Lol The majority opinions here, and other sites are use other speakers because they will sound better.
I know this because i just did an SQ system in my boxster, and yes it blows away the stock system. Can i use it at max hifidelity, no because its a convertable.
Before that i changed only the dash speakers and yes it did sound much better. No theory here all practice.