Join Date: Mar 2012
Location: Peoria, AZ
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If your new 3-way speaker only has one set of power inputs, you wont be able to use the stock amplifier. You would have to connect both the woofer and tweeter leads to the same voice coil on the speaker which you can't really do in this case....
The next best thing to do here would be to purchase a new deck. The idea of having a 3-way speaker in theory is great because all of the sound is coming from one place. The practicality of it is that they usually don't have the best performance. You never see any of the high-end brands messing with anything coaxial with with more than 2-way although there are some that i swear offered a 3-way (maybe 1 design) but i wouldnt mess with it. The multiway speakers are almost part of a marketing scheme, atleast, thats how i view it that is used by the big mainstream brands. The rest of what they mak are single purpose drivers as in woofer, mid range and tweeter. Our cars have stock component's, to go to a coaxial is almost a step backwards in the front, atleast from a performance perspective.
To further what i said, splitting up the sound signal amongst different drivers can be a good thing, similar to what is done in your 4-way. There is no perfect driver out there and their responses usually act differently at different frequencies and amplitudes. By using dedicated drivers for certain freqeuncy ranges the overall sound quality can be better because each driver is doing "less work" by working on a specific frequency range. This also a lot of the time will allow greater volumes as well. This, of course is dependent on the maker of the driver, i don't care how specialized or combined it is, if the manufacturer did a poor design, your sound quality will be poor too.
The best thing you can really do is move from coaxial (multiple drivers on a single driver) to a multi-way system (seperate drivers apart from one another) usually in the form of a 2-way system but you could also do a 3-way or 4-way system but your sound becomes less localized, the goal is to get the drivers as close to one another to create a single source point. 2-ways are most common. Now, can you have a great sounding coxial 2-way, hell yes you can, it can sound great but most just go component style. In home audio, there are very few good manufacturers that do coaxial and just go components. KEF has their Uni-Q driver which is a coaxial but it combines the high ender range where there is much less cone movement and i am assuming is why they are doing it and they can do it right too!
Our cars have a 2-way and personally, i think the dash design hinders the system because of its size and angle. The tweeter really should be closed to the woofer like being in the side pillar. Basically, cars do not present the optimal soundstage almost ever, the easiest way to combat the non-optimal listening environment is to do a multiway configuration which gives you more control of where you choose to have your sound come from.
In the end, this is all about you and what you want and what you ar elooking to get out of your system. Everyone seeks something different and hears things differently. What i like you may hate but there are some things that you can follow as a guideline such as the difference between components and coaxials. Ceri could chime in and absolutely blow away what i know because he has an EE degree (lucky bastard).
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"The Black Beauty"
2012 Challenger R/T Black with Super Trak Pak with 5-Speed
-Pioneer DEH-80PRS Deck (running 3-way network mode)
-Arc Audio KS 300.4 - 90 watts X 4 channels @ 4 ohms for front stage
-Arc Audio KS 300.2 - 700 watts X 1 channel bridged @ 4 ohms for subwoofer
-Hybrid Audio Imagine I69-2 Woofers and Sundown Tweets
-Dayton Audio 8" rear deck IB subwoofer