2004 Bose or not Bose?

[Cunningr]

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.

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.

[marsheng]

Originally Posted by Cunningr

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.

Not sure what this means. "takes less power to reach the same power"

Hmm at what frequent is it 4 or 2 ohms.

See a typical speaker resistance with regard to frequency. [URL="https://en.wikipedia.org/wiki/Electrical_characteristics_of_dynamic_loudspeakers[/URL]

1/2 way down the page.

Believe it or not the resistance or more accurately impedance changes with regards to frequency whether the speaker is in free air, dash board, car door, or box and box with a hole in it. So for a "matched" system, the speaker position would have be be included in the description.

If you listen to classical then your choice of speakers may well be different if it was rock. They do sound different.

To answer the original question, put in what you feel happy with. All have pros and cons. No perfect solution. (Oh yes there is, go to the recording studio)

Over and out.